A soil has been managed using a no-till system for 10 years following many years of conventional tillage operations.Which of the following changes in surface soil properties would you expect due to the no-till management system?
A)the earthworm population would decline
B)soil pH would increase
C)aggregate stability would decline
D)organic matter content would increase
E)bulk density would increase

Question

Quizplus · Accepted Answer

No-till management system helps to increase the organic matter content of the soil. This is because the undisturbed soil allows organic matter to accumulate, and the residue left from previous crops acts as a source of organic matter. Therefore, the organic matter content would increase in the surface soil as a result of the no-till management system. The other options are not expected changes due to no-till management. The earthworm population would likely increase, soil pH would not necessarily increase, aggregate stability would improve due to the increase in organic matter, and bulk density would decrease due to the improved soil structure.

A Soil Has Been Managed Using a No-Till System for 10