Q6 of 52 Page 466

The shorter duration crops help the farmer:

The short maturity period of crops helps farmers in multiple rounds of cultivation in less expenditure during a short period. Thus, overall variety improvement makes the situation more profitable. They can grow different crops several times in a year instead of just growing a single crop throughout the year. Hence D is correct.

More from this chapter

All 52 →
4

Find out the correct sentence about manure :

(i) Manure contains large quantities of organic matter and small quantities of nutrients.


(ii) It increases the water holding capacity of sandy soil.


(iii) It helps in draining out of excess of water from clayey soil


(iv) Its excessive use pollutes environment because it is made of animal excretory waste.

 5

The major groups of activities for improving crop yields can be classified as :

 7

The way of incorporating desirable characters into crop varieties is by :

 8

The changes brought by biotic and abiotic factors in the food grains which are not stored properly includes :