This is the Earth Science for STEM self-learning module for Quarter 1, Module 12: Soil Conservation. It is a Senior High School module (Alternative Delivery Mode, First Edition 2021) from DepEd Region IV-A CALABARZON, written for STEM learners studying at home or in class. After working through it, learners can name the main ways to conserve and protect soil, identify conservation programs in the country, and make an awareness poster about caring for soil.
On this page 6 sections
What learners will learn
The module has one lesson, Lesson 1: Soil Conservation Methods and Practices. After going through it, learners are expected to:
- Cite different methods to conserve and protect the soil for future generations.
- Determine the conservation projects and programs implemented by the country.
- Make a poster expressing the different ways of conserving and protecting the quality of soil.
Why soil needs to be conserved
The lesson starts from the food pyramid. Plants sit at its base because most living things depend on the food that plants make. Plants, in turn, need soil, since their roots draw the nutrients they need to grow and bear fruit. Soil is one of the three main factors for plant growth, together with sunlight and water.
The module defines soil conservation as a blend of strategies and practices used to protect soil quality from degradation so it stays useful in the future. It asks learners to treat soil as a living ecosystem with basic needs. This means rehabilitating and restoring soil by returning organic matter to it on a continual basis. The module also stresses that conservation programs only succeed when every member of the community takes part.
In Activity 1, learners look at four Philippine examples and explain why soil matters in each one:
- A village in the Batad Rice Terraces, Cordillera Administrative Region
- Workers building a school under the government’s infrastructure program
- The Chocolate Hills of Bohol
- A Philippine Eagle named Kalabugao from the forest of Manolo Fortich, Bukidnon
Ten methods of soil conservation
The module’s “Read Me!” section explains ten methods. Here they are in brief, using the module’s own explanations.
| Method | How it helps the soil |
|---|---|
| Tree planting | Roots hold the soil firmly and prevent erosion. Plant cover also acts as a wind barrier. |
| Terrace building | A terrace is a leveled section of a hilly cultivated area. Its stepped shape, as in the Philippine Rice Terraces, slows runoff and the washing down of soil. Dry stonewalling builds terraces from stone without mortar. |
| No-till farming | Growing crops without disturbing the soil through tillage. Tilling helps mix fertilizers and prepare rows, but it can compact soil, reduce organic matter, and kill soil organisms. |
| Contour plowing | Plowing across the contour lines of a slope. It slows water runoff, keeps soil from washing away, and helps water seep into the soil. |
| Crop rotation | Growing a series of different crops in one area. It stops pathogens from building up, balances fertility demands, and improves soil structure. |
| Maintaining soil pH | Acidic or basic pollutants and acid rain upset soil pH. Since pH indicates nutrient levels and affects how plants take up nutrients, keeping the right pH is essential. |
| Watering the soil | Watering soil along with the plants in it helps prevent erosion caused by wind. |
| Salinity management | Too much salt harms crop metabolism and kills vegetation, which leads to erosion. Managing salinity indirectly conserves soil. |
| Promoting helpful soil organisms | Bacteria and fungi keep soil healthy, and some bacteria are key to the nitrogen cycle. Earthworms and rodents loosen and aerate soil, improving its porosity and fertility. |
| Growing indigenous crops | Native crops benefit the soil. If non-native plants are grown, bordering fields with indigenous crops helps prevent erosion. |
Activity 2 focuses on the first four methods: tree planting, terraces, no-till farming, and crop rotation. For each one, learners write what they think, what they heard from someone knowledgeable, and what they read in a credible source. They also list soil conservation methods promoted by the Department of Science and Technology and the Department of Agriculture. Then they fill in a table of provinces, programs, and descriptions of local soil conservation efforts.
How to use this module
The module follows the usual self-learning module parts:
- What I Know: a 15-item pretest. For each statement, learners write A (always correct), B (incorrect), or C (sometimes correct).
- What’s In and What’s New: a review of human activities that harm soil, followed by Activity 1.
- What is It: reflection questions on why and how the country protects soil, followed by Activity 2.
- What’s More: a 10-item matching exercise using terms such as terrace, tilling, soil pH, and crop rotation.
- What I Have Learned: learners write their own definition of soil conservation, then read the “Read Me!” summary.
- What I Can Do: learners make a poster on the importance of soil and how to conserve it. The module includes a rubric scored from 1 to 4 on required elements, labels, graphics, attractiveness, and grammar.
- Assessment: a 15-item multiple-choice post-test.
- Additional Activities (I am Soil Warrior): learners share their poster on social media or post printed copies in their community.
An answer key for the pretest, the matching exercise, and the assessment is at the end.
For learners: Write your answers on a separate sheet of paper, not on the module. Check your work with the answer key only after you answer, and be honest with yourself.
For parents: Help your child find someone knowledgeable to interview for Activity 2. You can also help them find places in your community to display their poster.
For teachers: The Notes to the Teacher suggest bringing learners to an area with soil. Simple planting and gardening, songwriting, or drawing about the importance of soil can help the lesson connect.
Frequently asked questions
What grade level is Earth Science for STEM Module 12 for?
It is a Senior High School module for learners in the STEM strand. It covers Quarter 1, Module 12, and has a single lesson on soil conservation methods and practices.
What is soil conservation according to the module?
The module defines it as a blend of strategies and practices used to protect soil quality from degradation for future use. It involves caring for soil as a living ecosystem and returning organic matter to it.
What soil conservation methods does the module discuss?
It covers ten methods: tree planting, terrace building, no-till farming, contour plowing, crop rotation, maintaining soil pH, and watering the soil. It also covers salinity management, promoting helpful soil organisms, and growing indigenous crops.
Does the module have an answer key?
Yes. The answer key at the end covers the What I Know pretest, the What’s More matching exercise, and the 15-item Assessment.
What is the main output of the module?
Learners make a poster showing the importance of soil and how to conserve and protect it. It is graded with a rubric that is included in the module.
Full text of the module
The text below is a transcription of the PDF above, as printed.
CO_Q1_ESS SHS Module 12
Earth Science for STEM
Quarter 1 – Module 12: Soil Conservation
[photo: illustration of students studying outdoors and at home, with a globe and a lantern]
Earth Science for STEM Alternative Delivery Mode Quarter 1 – Module 12: Soil Conservation First Edition, 2021
Republic Act 8293, section 176 states that: No copyright shall subsist in any work of the Government of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. Such agency or office may, among other things, impose as a condition the payment of royalties.
Borrowed materials (i.e., songs, stories, poems, pictures, photos, brand names, trademarks, etc.) included in this module are owned by their respective copyright holders. Every effort has been exerted to locate and seek permission to use these materials from their respective copyright owners. The publisher and authors do not represent nor claim ownership over them.
Published by the Department of Education Secretary: Leonor Magtolis Briones Undersecretary: Diosdado M. San Antonio
Printed in the Philippines by ________________________
Department of Education – Region IV-A CALABARZON
Office Address: Gate 2 Karangalan Village, Barangay San Isidro Cainta, Rizal 1800 Telefax: 02-8682-5773/8684-4914/8647-7487 E-mail Address: 02-8682-5773/8684-4914/8647-7487
Development Team of the Module
Writer: Dennis B. Masangcay
Editors: Ferdinand M. De Castro, Czarina Portia M. Villalobos
Reviewers: Mark Anthony P. Lagumen, Ma. Ruby A. Mendoza, Rogelio D. Canuel, Reyna M. Orlanes, Cyrus T. Festijo Rowena D. Cabanding
Illustrator: Lallie C. Buensalida
Layout Artist: Annaliza Q. Aviles
Management Team: Francis Cesar B. Bringas, Job S. Zape Jr., Ramonito O. Elumbaring, Reicon C. Condes, Elaine T. Balaogan, Fe M. Ong-ongowan, Sacoro R. Comia, Fe M. Fallurin, Marieta N. Perez
Earth Science for STEM Quarter 1 – Module 12: Soil Conservation
Senior High School
Earth Science for STEM
Quarter 1 – Module 12: Soil Conservation
ii
Introductory Message
This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson.
Each SLM is composed of different parts. Each part shall guide you step-by-step as you discover and understand the lesson prepared for you.
Pre-tests are provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacher’s assistance for better understanding of the lesson. At the end of each module, you need to answer the post-test to self-check your learning. Answer keys are provided for each activity and test. We trust that you will be honest in using these.
In addition to the material in the main text, Notes to the Teacher are also provided to our facilitators and parents for strategies and reminders on how they can best help you on your home-based learning.
Please use this module with care. Do not put unnecessary marks on any part of this SLM. Use a separate sheet of paper in answering the exercises and tests. And read the instructions carefully before performing each task.
If you have any questions in using this SLM or any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator.
Thank you.
1 CO_Q1_ESS SHS Module 12
What I Need to Know
[illustration: hand pressing a fingertip on a circular button, icon beside the title]
This module was designed and written with you in mind. It is here to help you understand the concepts on soil conservation, specifically, the primary methods and practices adopted to support sustainability for future generations. The scope of this module permits it to be used in many different learning situations. The language used recognizes the diverse vocabulary level of students. The lessons are arranged to follow the standard sequence of the course. But the order in which you read them can be changed to correspond with the textbook you are now using.
The module tackles only one lesson, namely:
- Lesson 1 – Soil Conservation Methods and Practices
After going through this module, you are expected to:
- site different methods to conserve and protect the soil for future generations;
- determine the conservation projects and programs implemented by the country; and
- make a poster expressing the different ways on conserving and protecting the quality of soil.
2 CO_Q1_ESS SHS Module 12
What I Know
[illustration: hand holding a pencil, icon beside the title]
Read each item carefully. Analyze each statement and discriminate whether the statement express correct expression or not based on the underlined word/group of words. Write:
A – if the statement is always correct. B – if the statement is incorrect. C – if the statement is sometimes correct.
- Contour plowing helps in slowing the water runoff and prevents soil from being washed away along the slope.
- Some pathogens tend to build up in soil if the same crops are cultivated again and again.
- The uptake of nutrients by plants also depends on the pH of soil.
- Watering soil is a good measure of soil conservation.
- The salinity of soil increases due to insufficient accumulation of salts in the soil.
- The death of vegetation leads to soil erosion.
- Bacteria and fungi help keep the plant healthy.
- Continuous cultivation of the same crop always leads to imbalance in the fertility demands of the soil.
- The process of tilling is always beneficial in mixing fertilizers in the soil, making rows and preparing the surface for sowing.
- Philippine Rice Terraces is a good manifestation of soil conservation method.
- Denuded forest affects the quality of the soil.
- Rotation reduces the risk of insect and disease problems, thus decreasing a pesticide dependency.
- Using fertilizers is good for the soil.
- Soil needs to be conserved and protected only for the current generation.
- Food production highly depends on soil.
3 CO_Q1_ESS SHS Module 12
Lesson 1: Soil Conservation Methods and Practices
Soil as one of the most important natural resources needs personal and societal actions devising and implementing ways of how to conserve and protect it. Analyzing the food pyramid, plants (plant foods) are at the base signifying that they are fundamental to the existence of life. Most organisms are dependent to the food produced by plants as being autotrophic (self-feeder). Plants require soil for survival as their roots get the necessary nutrients to grow and to bear fruits. Soil is one of the three primary factors for plant growth, together with sunlight and water. Saying such, it is an important element of the ecological system and, therefore, its conservation is essential for the upcoming generations.
What’s In
[illustration: hand holding a puzzle piece, icon beside the title]
Reviewing the previous lessons, you learned that there are activities primarily induced by human that affect greatly the quality of soil threatening the food security of the future generations. Realizing the responsibility to view the current soil usage in a sustainable frame, everyone should take their part in conserving and protecting the soil quality. Soil conservation is an effective blending of strategies and practices used to protect the soil quality from degradation for future purposes. In eying the process, the conservation involves treating and caring the soil as a living ecosystem that necessitates basic requirements. This implies rehabilitation and restoration by returning organic matter to the soil on a continual and sustainable basis.
Notes to the Teacher
[illustration: hand holding a stack of papers, icon above the box]
The target lesson may effectively connect to students by allowing them to go to the area where the soil is present. Activities like simple planting and gardening may give them more realization on how important the soil is. The teacher may also employ song writing and drawing activities expressing the importance of soil.
4 CO_Q1_ESS SHS Module 12
What’s New
[illustration: hand holding a sprouting plant, icon beside the title]
Footprint on the Soil
Soil is threatened due to progressing degradation processes caused by climate change and other factors. Thus, soil conservation and protection are in the limelight emphasizing the informational, educational, and motivational impact of all the measures. The success of any program cannot be attained without the active participation of every member of the community. It targets to elevate public awareness and the farmers’ traditional and professional knowledge about protecting the landscapes by having real efforts to comply with mandated practices and technologies.
Activity 1
Seeing the Real Essence…
The success of any program targeting soil conservation is highly dependent on the strategy of letting people understand about soil importance.
Study the Figure 1.1 – 1.4. Determine the importance of soil based on the given figures.
Figure 1.1
[photo: aerial view of a village among the terraced rice fields of the Batad Rice Terraces, Cordillera Administrative Region]
For your information… This is a village in the UNESCO-listed Batad Rice Terraces, Cordillera Administrative Region. Source: https://www.ttgasia.com/2018/02/06/philippines-points-travellers-towards-rural-tourism/
The soil is important because…
Figure 1.2
[photo: workers building a school with a concrete mixer and steel reinforcement]
For your information… Part of the ‘Build! Build! Infrastructure Plan of Duterte Administration is the construction of schools for children Source: http://www.build.gov.ph/
The soil is important because…
Figure 1.3
[photo: the Chocolate Hills in Bohol, a group of rounded hills beside rice fields]
For your information… The Chocolate Hills are a group of unusually shaped hills located in the middle of the island of Bohol in Philippines. Source: http://www.chocolatehills.net/
The soil is important because…
Figure 1.4
[photo: a Philippine Eagle at its nest in the forest]
For your information… The Philippine Eagle named ‘Kalabugao’ is from the forest of Manolo Fortich in Bukidnon. Source: https://www.wheninmanila.com/philippine-eagle-featured-in-our-planet-documentary/
The soil is important because…
What is It
Among the cited importance of soil, which of them gives you more realization that soil should be protected and conserved? Explain your answer.
Based on your observation (e.g. what you heard from news and read in newspapers), how does the country conserve and protect the soil?
Why do you think soil should be conserved and protected?
Activity 2
Practice Makes Perfect!
Knowing the essentiality of the soil is the starting point to convince the participation of an individual in any conservation activity promoted by the government or an organization. Figures 2.1 – 2.4 provides some of the common methods and practices of conserving the soil for sustainability. In the ‘what I know’ box, write your thoughts about how those methods can help in soil conservation. In ‘what I heard” box, write the information that you get from someone who is knowledgeable about the figure. In the ‘what I read” box, write the ideas that you read from a research article or any credible references.
Figure 2.1. Plant Trees
[photo: a child’s hands planting a seedling in soil]
What I see is…
Source: https://flyingketchup.ph/denr-deped-pushing-to-plant-trees-in-schools/
What I Know I think…
What I heard According to…
What I read
Reference: ___________________________________________
Figure 2.2. Build Terraces
[photo: rice terraces cut into a hillside, with a village at the top]
What I see is…
Source: https://zenrooms.com/?fbclid=IwAR1CD5v4QXWjyxs75BlAqgiK4TV0dV43DsL2H7lWuiGQlp8JbQ2BGrQ-PI
What I Know I think…
What I heard According to…
What I read
Reference: ___________________________________________
Figure 2.3. No-till Farming
[photo: a field covered with crop residue and young plants growing through it]
What I see is…
Source: https://www.no-tillfarmer.com/articles/7688-making-no-till-cover-crops-work-in-the-dustbowl
What I Know I think…
What I heard According to…
What I read
Reference: ___________________________________________
Figure 2.4. Crop Rotation
[photo: three crops side by side: a root crop, a corn field, and cabbage heads]
What I see is…
Source: https://drecampbell.com/crop-rotation-all-you-need-to know/?fbclid=IwAR2iauE0TXk9UDk_od32D3FD4gO9uXaaqXyHeLeKSPmOsm21FNP61DQac4Q
What I Know I think…
What I heard According to…
What I read
Reference: ___________________________________________
Based on the figures, what are the common methods of conserving and protecting the soil?
Based on your observation in your community, what method is commonly applied? Cite an example scenario.
Among the cited methods, which of them you could probably make yourself participate with? In what way, you can involve yourself in the said method?
In our country, what are the common methods that are promoted by Department of Science and Technology and Department of Agriculture?
Can you identify some provinces implementing programs for soil conservation?
| Province | Program | Description |
|---|---|---|
Aside from the given methods, contour plowing, maintaining soil pH level, watering the soil, managing its salinity, promoting symbiotic organisms, and growing indigenous crops can also help to conserve and protect the soil. Through personal and organizational initiatives, the good soil resources can still benefit the future generations.
What’s More
Practice Makes Perfect!
Select the word/group of words in the box that match to the given description in each item below.
| watering | terrace | bacteria |
| same-crop cultivation | soil salinity | no-till farming |
| soil pH | dry stonewalling | crop rotation |
| earthworms | tilling | contour plowing |
_____1. process of preparing soil for plowing
_____2. a leveled section of a hilly cultivated area
_____3. the method of plowing across the contour lines of a slope
_____4. a method used to create terraces in which stone structures are made without using mortar for binding.
_____5. leads to imbalance in the fertility demands of the soil.
_____6. method of growing a series of dissimilar crops in an area.
_____7. an indicator of the level of nutrients in soil.
_____8. a way to prevent soil erosion caused by wind.
_____9. accumulation of salts in the soil.
_____10. help decompose organic material in the soil.
What I Have Learned
My Brain Works!
Based on the activities and your understanding, write your own definition of soil conservation.
What’s in my Brain!
Read Me!
Soil is one of the most important natural resources that require conservation practices. Most of the methods that are utilized to promote sustainable use of the soil are:
Tree Planting: Roots of trees firmly hold on the soil making it stagnant and prevent soil erosion. As they grow, their roots go deeper and spread wider into the soil. In addition, soil under a vegetative cover is saved from erosion due to wind as this cover acts as a wind barrier.
Terraces Building: A terrace is a leveled section of a hilly cultivated area. Having its unique topography, it prevents rapid surface runoff of water. Terracing gives the landmass a stepped appearance like the famous Philippine Rice Terraces, thus slowing the washing down of soil. Dry stonewalling is a method used to create terraces in which stone structures are made without using mortar for binding.
No-till Farming: Tilling is the process of preparing soil for plowing. In conserving the soil, no-till farming which is a way of growing crops without disturbing it through tillage is highly recommended. The process of tilling is beneficial in mixing fertilizers in the soil, making rows and preparing the surface for sowing. Unfortunately, tilling activity can lead to compaction of soil, loss of organic matter in the soil and the death of soil organisms. No-till farming is a way to prevent the soil from this harm.
Contour Plowing: This practice of farming on slopes considers the slope gradient and the elevation of soil along the slope. It is the method of plowing across the contour lines of a slope. This method helps in slowing the water runoff and prevents soil from being washed away along the slope. Contour plowing also helps in percolation of water in the soil.
Crop Rotation: Some pathogens tend to build up in soil if the same crops are cultivated again and again. Continuous cultivation of the same crop also leads to imbalance in the fertility demands of the soil. To save the soil from these adverse effects, crop rotation is practiced. It is a method of growing a series of dissimilar crops in an area. Crop rotation also helps in the improvement of soil structure and fertility.
Maintaining Soil pH: The contamination of soil by addition of acidic or basic pollutants and due to acid rains has an adverse effect on the soil pH. Soil pH is an indicator of the level of nutrients in soil. The uptake of nutrients by plants also depends on the pH of soil. Maintaining the correct value of soil pH, is thus essential for soil conservation.
Water the Soil: We water plants, we water the crops, but do we water the soil? We seldom do. Watering soil is a good measure of soil conservation. Watering the soil along with plants growing in it is a way to prevent soil erosion caused by wind.
Salinity Management: The salinity of soil increases due to excessive accumulation of salts in the soil. This has a negative effect on the metabolism of crops. The salinity of soil is detrimental to the vegetative life in it. The death of vegetation leads to soil erosion. Hence, salinity management is an indirect way of conserving soil.
Promote Helpful Soil Organisms: Nitrogen-fixing and denitrifying bacteria are important constituents of the nitrogen cycle. They live in soil. Bacteria and fungi help keep the soil healthy. Organisms like earthworms help decompose organic material in the soil. They aid soil aeration and help it maintain porosity. Rodents too, help soil the same way. This increases the absorbing capacity of soil. Earthworms, through aeration of soil, enhance the availability of macronutrients. These helpful organisms boost soil fertility and help in soil conservation.
Grow Indigenous Crops: Planting native crops is beneficial for soil conservation. If non-native plants are grown, fields should be bordered by indigenous crops to prevent soil erosion, thus achieving soil conservation.
What I Can Do
Awareness is the Key!
People work in unity when they are aware of the real vision and purpose of certain movement or program. That is why it is important that they are being reached with core information. When an individual knows the issue, he/she can proactively participate in each activity initiated by an organization and government.
To help increase the awareness, you are tasked to make a poster that shows the importance of soil and how it will be conserved and protected. Below are samples and rubric for grading the output.
Samples:
[illustration: sample poster titled “COVID-19 PREVENTION” with four printed tips: “WASH YOUR HANDS”, “COUGHING ETIQUETTE”, “WEAR MASK”, “AVOID HUMAN CONTACT”; a “YOUR LOGO” placeholder and “@yourhealth.gov”]
[illustration: sample poster titled “Save our Soils!” with a hand holding soil and a plant, sections labeled “URBAN EXPANSION”, “SALTINESS OR ‘SALINITY’”, “EROSION”, “COMPACTION”, “POLLUTION”, and the footer “www.soils.org.uk”]
Source: https://www.postermywall.com/index.php/art/
Making a Poster: Poster Rubric
| Category | 4 | 3 | 2 | 1 |
|---|---|---|---|---|
| Required Elements | The poster includes all required elements as well as additional information. | All required elements are included on the poster. | All but 1 of the required elements are included on the poster. | Several required elements were missing. |
| Labels | All items of importance on the poster are clearly labeled with labels that can be read from at least 3 feet away. | Almost all items of importance on the poster are clearly labeled with labels that can be read from at least 3 feet away. | Many items of importance on the poster are clearly labeled with labels that can be read from at least 3 feet away. | Labels are too small to view or no important items were labeled. |
| Graphics-Relevance | All graphics are related to the topic and make it easier to understand. All borrowed graphics have a source citation. | All graphics are related to the topic and most make it easier to understand. Some borrowed graphics have a source citation. | All graphics related to the topic. One or two borrowed graphics have a source citation. | Graphics do not relate to the or several borrowed graphics do not have a source citation. |
| Attractiveness | The poster is exceptionally attractive in terms of design, layout, and neatness. | The poster is attractive in terms of design, layout, and neatness. | The poster is acceptably attractive though it may be a bit messy. | The poster is distractingly messy or very poorly designed. It is not attractive. |
| Grammar | There are no grammatical/ mechanical mistakes on the poster. | There are 1-2 grammatical/ mechanical mistakes on the poster. | There are 3-4 grammatical/ mechanical mistakes on the poster. | There are more than 4 grammatical/ mechanical mistakes on the poster. |
Source: www.uen.org › lessonplan ›
Assessment
Read each item carefully. Write only the letter of the correct answer.
Soil conservation is ___________
- a. a combination of practices used to protect the soil from degradation.
- b. a set of standards for using the soil in relation to current situations.
- c. a process of studying the soil profile.
- d. a policy of declaring a soil area to be protected for future use.
Which of the following are best reasons for doing soil conservation methods?
- I. To ensure a secure food supply at reasonable prices.
- II. To improve wildlife habitat.
- III. To maintain an adequate amount of organic matter and biological life
- IV. To save farmers from the effect of climate change
- a. I and II only
- b. II and II only
- c. I, II and III only
- d. II, III and IV only
Why is planting trees help in conserving the soil? It is because __________
- a. it helps in maintaining soil moisture content.
- b. its roots hold the soil firmly avoiding erosion.
- c. it gives nourishment to the soil.
- d. all of the above
It is a leveled section of a hilly cultivated area.
- a. Hill
- b. Terrace
- c. Valley
- d. Mountain
Which of the following is a process that involves planting seeds into the residue of the previous crop?
- a. Contour Farming
- b. No-Till Farming
- c. Crop Rotation
- d. Strip Cropping
This practice of farming on slopes considers the slope gradient and the elevation of soil along the slope.
- a. No-Till Farming
- b. Crop Rotation
- c. Strip Cropping
- d. Contour Farming
Which of the following is/are advantage of crop rotation?
- I. It avoids the building up of soil pathogens.
- II. It balances the fertility of soil.
- III. It maintains good pH level of the soil good for crops.
- a. I only
- b. I and II only
- c. II and III only
- d. I, II and III
The soil contamination can be indicated by its pH level. The statement is
- a. True, because it may be due to addition of acidic or basic pollutants.
- b. False, because the soil has its own way of controlling pH level
- c. True, because additional nutrients will always make the soil acidic
- d. False, because low amount of nutrients will make the soil basic.
Watering the plants is beneficial to soil because it prevents
- a. compaction
- b. erosion
- c. sedimentation
- d. eutrophication
The salinity of soil
- a. increases when there is an excessive amount of acids.
- b. decreases when there is an insufficient amount of acids.
- c. increases when there is an excessive amount of salts.
- d. decreases when there is an insufficient amount of salts.
They are important organisms for the nitrogen cycle.
- a. earthworms
- b. millipedes
- c. rodents
- d. bacteria
Which of the following will happen when salinity of the soil has increased?
- I. Metabolism of crops will be negatively affected.
- II. Death of vegetation will occur.
- III. Soil erosion will happen.
- a. I only
- b. II only
- c. I and II only
- d. I, II and III
Different plants/ crops require certain pH level. The statement is __________
- a. true, because pH level depends on the amount of nutrients.
- b. false, because pH level depends on the amount of humus.
- c. true, because high pH level is required by plants to grow.
- d. false, because low pH level is required by plants to grow.
It is a method of growing a series of dissimilar crops in an area which helps in the improvement of soil structure and fertility.
- a. Contour Farming
- b. No-Till Farming
- c. Crop Rotation
- d. Strip Cropping
Which of the following is a method helps in slowing the water runoff and prevents soil from being washed away along the slope?
- a. Crop Rotation
- b. Contour Farming
- c. No-Till Farming
- d. Strip Cropping
Additional Activities
I am Soil Warrior
Using your poster, you may post it on different social media platforms. You may also print the material in your community and post it on different sites where people can be informed and raise their awareness.
[illustration: collage of social media app icons (Instagram, Facebook, YouTube, Twitter, Pinterest, Tumblr, Snapchat) on sticks]
Source: https://cultureofyes.ca/2019/10/08/social-media-and-technology-related-but-different/
Answer Key
[illustration: circular icon of a key and a hand]
[transcriber’s note: the answer key page is printed rotated 180 degrees; the three columns are transcribed in upright reading order]
What I Know
- a
- c
- a
- c
- b
- a
- b
- c
- b
- a
- a
- a
- c
- b
- a
What’s More
- Tilling
- Terrace
- Contour plowing
- Drystone walling
- Same-crop cultivation
- Crop rotation
- Soil pH
- watering
- Salinity
- Bacteria
Assessment
- a
- c
- d
- b
- b
- d
- d
- a
- b
- c
- d
- d
- a
- c
- b
References
“10 ways to conserve the soil,” accessed https://savetheearthsavelife.wordpress.com/2014/09/11/10-ways-to-conserve soil/
Johnston County, “Soil conservation,” accessed https://www.johnstonnc.com/swc/content.cfm?pageid=wisc
“Soil protection,” accessed https://ec.europa.eu/jrc/en/research-topic/soil-protection
For inquiries or feedback, please write or call:
Department of Education – Bureau of Learning Resources (DepEd-BLR)
Ground Floor, Bonifacio Bldg., DepEd Complex Meralco Avenue, Pasig City, Philippines 1600
Telefax: (632) 8634-1072; 8634-1054; 8631-4985
Email Address: blr.lrqad@deped.gov.ph * blr.lrpd@deped.gov.ph
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