Q.No.3. What is the best method to evaluate soil fertility and why? (2)
Answers
Answer:
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.
Explanation:
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Answer:
Soil fertility can be further improved by incorporating cover crops that add organic matter to the soil, which leads to improved soil structure and promotes a healthy, fertile soil; by using green manure or growing legumes to fix nitrogen from the air through the process of biological nitrogen fixation; by micro-dose .
A soil test is important for several reasons: to optimize crop production, to protect the environment from contamination by runoff and leaching of excess fertilizers, to aid in the diagnosis of plant culture problems, to improve the nutritional balance of the growing media and to save money and conserve energy