GK
SOIL EROSION AND CONSERVATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The fertility level of any soil is generally determined by:
|
|
Aeration and hydration
|
|
|
Humus and mineral contents
|
|
|
Humus, mineral and hydration level
|
|
|
All of these
|
Explanation:
Detailed explanation-1: -The soil fertility can be judged by soil total nitrogen content, which can also be taken as reference to the soil fertilization, as shown in Table 4.16.
Detailed explanation-2: -Soil testing is an excellent method for estimating the fertility status of a soil, and it provides valuable information for developing a sound fertility management program. There are four critical steps to a soil test: sampling, analysis, interpretation and recommendation.
There is 1 question to complete.