crop production part 1

Maximum alchol production per hectare of crop is from

Explain any one method of crop production which ensures high yield.

Three crops that contribute maximum to global food production are

How do biotic and abiotic factors affect crop production ?

Divide 20 into two parts such that the product of one part and the cube of the other is maximum. The two parts are

Read the bar graph given in Figure and answer the following questions: What information is given by the bar graph? What was the crop-production of rice in 1970-71? What is the difference between the maximum and minimum production of rice?

Assertion: Use of fertilisers greatly enhances crop productivity. Reason: Irrigation is very important in increasing crop productivity.

Why is organic matter important for crop production?

In how many parts an integer N>=5 should be dissected so that the product of the parts is maximized.

Main objective of production of weed resistant GM crops is to