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Commercial Crop Farming: irrigation, soil and post-harvest

What you'll be able to do
  • Build a soil-health plan from the four NRCS soil health principles and your own records.
  • Work out crop water need and schedule irrigation using soil moisture and a simple water budget.
  • Compare surface, sprinkler and drip irrigation for your soil, land and crop.
  • Assess your irrigation water as a food-safety risk, the way modern produce rules ask.
  • Run a pest programme with scouting, thresholds and rotation of modes of action.
  • Cool, store and track produce after harvest, and cost an improvement before you buy it.

Education only. This course is not agronomy, legal or tax advice. It gives no pesticide or fertiliser doses. Always follow the product label, local rules and the advice of a licensed agronomist or your agriculture office.

Words in this course 47Open the Vocabulary Hall
01

Soil health as a system

In simple words

Soil is not dirt. It is a busy town full of tiny living things, and plant roots are the farmers' helpers that feed them. If you dig it up all the time, leave it bare and grow only one thing, the town gets sad. If you keep it covered and keep roots in it, the town gets strong.

Before this course: Crop Planning: seasons, yields and records (course 2.16.2), and before it Start a Small Farm (course 2.16). You should already have a bed map, a rotation plan, a soil test and four record sheets.

Key facts
  • The US Natural Resources Conservation Service (NRCS) describes soil health on cropland through four principles: minimise disturbance, maximise soil cover, maximise biodiversity and maximise the presence of living roots. Some NRCS pages add a fifth, integrating livestock.
  • NRCS notes that living roots give soil microbes their easiest source of food, because roots release carbon compounds into the soil.
  • Practices that put the principles to work include cover crops, crop rotation, perennial crops that keep roots active through the year, and reduced tillage (NRCS design guidance, 2024).
  • Principles are not recipes. The right mix depends on your climate, crop and equipment. Test one change on one field and compare it with a field you left as it was.
  • Your own records (course 2.16.2, lessons 4 and 5) are how you prove a change helped.
PrincipleA practice you could test
Minimise disturbanceLess or no tillage on one block
Maximise coverMulch or a cover crop between cash crops
Maximise biodiversityA longer rotation, a mixed cover crop
Maximise living rootsA cover crop in the gap before the next crop
Step by step
  1. Take your bed map from course 2.16.2 and mark which beds are bare for the longest time each year.
  2. For each bed, write what you do now for each of the four principles (disturbance, cover, diversity, living roots).
  3. Pick one principle and one practice to test (for example a cover crop in one bed).
  4. Choose a matching "control" bed that you manage as usual.
  5. Write down what you will measure: crop yield, soil test results, weeds, time and cost.
  6. Plan the test in your calendar, including when the cover crop is sown and when it ends. Ask your agriculture office which cover crops suit your season.
  7. Check: you have one test bed, one control bed, and a list of what you will record.
Watch on YouTube
Soil health lesson in a minute: discover the coverTheUSDANRCS · YouTube · youtube.com
Soil Health: Tillage vs No-till Soil RevealedClean River Partners · YouTube · youtube.com

Videos by other creators on YouTube, for reference. They are not made by or affiliated with The Future Market.

LESSON 01Soil health as a system
LESSON 01 / ANIMATED LESSON / AI VOICE00:00 / 01:00
Read the video script
[Host] "Healthy soil is a living system. Four principles keep it alive."
[Text on screen: Less disturbance, more cover, more variety, living roots] "NRCS says: disturb less, keep soil covered, grow a variety of plants and keep roots in the ground."
[Screen: two beds side by side, one bare, one with a cover crop] "Try one change in one bed and compare it with a bed you left alone."
[Host] "Your records tell you if it worked."
Try it now

Write a half-page soil-health test plan: one test bed, one control bed, the practice, and the four numbers you will record.

ClaudeStuck? Copy a ready-made prompt for Claude

Copy this, open Claude, paste it, and Claude will walk you through the lesson step by step.

For a grown-up: Claude is for adults (18+). Copy this, paste it into Claude, and use the answer to explain the lesson to your child.

I'm learning "Commercial Crop Farming: irrigation, soil and post-harvest" on The Future Market. Lesson 1: "Soil health as a system".

What the lesson teaches:
- The US Natural Resources Conservation Service (NRCS) describes soil health on cropland through four principles: minimise disturbance, maximise soil cover, maximise biodiversity and maximise the presence of living roots. Some NRCS pages add a fifth, integrating livestock.
- NRCS notes that living roots give soil microbes their easiest source of food, because roots release carbon compounds into the soil.
- Practices that put the principles to work include cover crops, crop rotation, perennial crops that keep roots active through the year, and reduced tillage (NRCS design guidance, 2024).
- Principles are not recipes. The right mix depends on your climate, crop and equipment. Test one change on one field and compare it with a field you left as it was.
- Your own records (course 2.16.2, lessons 4 and 5) are how you prove a change helped.
- Principle - A practice you could test
- Minimise disturbance - Less or no tillage on one block

The exercise I'm working on:
Write a half-page soil-health test plan: one test bed, one control bed, the practice, and the four numbers you will record.

I'm stuck. Please:
1. Explain the main idea in plain, simple words with one everyday example.
2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step.
3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.
I'm a parent helping my child (about 8 years old) with a lesson called "Soil health as a system" from the course "Commercial Crop Farming: irrigation, soil and post-harvest".

Here's what the lesson says:
Soil is not dirt. It is a busy town full of tiny living things, and plant roots are the farmers' helpers that feed them. If you dig it up all the time, leave it bare and grow only one thing, the town gets sad. If you keep it covered and keep roots in it, the town gets strong.

The activity:
Write a half-page soil-health test plan: one test bed, one control bed, the practice, and the four numbers you will record.

Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words.
Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.
Open Claude
Sources
My notes
02

From soil tests to decisions

This lesson is part of full access: every course and every level for one payment.

03

Crop water need and irrigation scheduling

This lesson is part of full access: every course and every level for one payment.

04

Choosing and managing an irrigation system

This lesson is part of full access: every course and every level for one payment.

05

Irrigation water and food safety

This lesson is part of full access: every course and every level for one payment.

06

Pest programmes at commercial scale

This lesson is part of full access: every course and every level for one payment.

07

Cooling, storage and post-harvest handling

This lesson is part of full access: every course and every level for one payment.

08

Cost an upgrade and write your improvement plan

This lesson is part of full access: every course and every level for one payment.

++

Final project

This lesson is part of full access: every course and every level for one payment.

??

Quiz

  1. What are the four soil health principles NRCS lists for cropland?

  2. Why compare a test bed with a control bed?

  3. What does ET crop = ETo x Kc mean?

  4. Which of drip, sprinkler and surface irrigation had the highest typical efficiency in the extension guide?

  5. Why check whether a water source needs a permit before you build an irrigation system?

  6. What should you do if you find irrigation water is unsafe for a food crop?

  7. Name three things a water assessment looks at.

  8. Why rotate the mode of action group of a pesticide?

  9. If a spray seems not to work, what should you rule out first?

  10. Why cool produce quickly after harvest?

  11. How do you work out a payback period?

  12. Why test an upgrade with a worse case?

EX

Final exam

This lesson is part of full access: every course and every level for one payment.

CE

Certificate

This lesson is part of full access: every course and every level for one payment.