Question

Sustainable Agriculture


Question 1

In many countries around the world, especially in Africa and the Middle-East, farmed land is rainfed rather than irrigated. In these semi-arid regions, depending on land management practices, much of the rainfall on agricultural land is lost as non-productive evaporation from the soil surface. The water challenge in these areas is to enhance low crop yields by improving water availability for plant growth. Above you see the results of two land management strategies. Minimum tillage plus mulch results in twice as much available water as does deep tillage. Which choice is NOT a benefit of using the minimum tillage method.
Responses

A does not aid in soil aerationdoes not aid in soil aeration

B less water lost via evaporationless water lost via evaporation

C less water and nutrient run-offless water and nutrient run-off

D keeps soil and plant roots coolerkeeps soil and plant roots cooler
Question 2

The water challenge in these areas is to enhance low crop yields by improving water availability for plant growth. If farmers use traditional deep till methods, they lose _________ more water than they would with minimum till/mulching methods.
Responses

A 8%8%

B 21%21%

C 27%27%

D 44%

Answers

GPT-4o mini
**Question 1**: The choice that is NOT a benefit of using the minimum tillage method is:

**A** does not aid in soil aeration

Minimum tillage methods generally do not provide as much aeration to the soil compared to deep tillage, which is focused on breaking up the soil and loosening it for better air penetration.

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**Question 2**: The amount of water lost by farmers using traditional deep till methods compared to minimum till/mulching methods is:

**D** 44%

This indicates that traditional deep till methods result in significantly more water loss, highlighting the effectiveness of minimum tillage and mulching in conserving water.