Question

Beera wants to practice crop rotation in his field. It is advisable?Explain

Answer 1

Beera can use crop rotation in his field by cultivating leguminous ( ex: groundnuts) and non leguminous ( ex: rice) crops in alternate years.

first he can sow leguminous plant as the root cells of these plants contain a bacteria called rhizobium which converts the atmospheric nitrogen into nitrates which can be used by the crops for the nutrition. the leguminous plants do not us the complete amount of nitrates instead it leaves behind some amount.

so when Beera sows rice or another non leguminous crop the next year his crops will get the sufficient amount of nutrients from the nitrates left behind.

by using this method of crop rotation Beera can save money for fertilizers and also his field's soil does not get polluted due the use of chemicals.

Answer 2

it is not easy as we think.

so, if you plant legiminous plants in rainy and the grains are ready you should take grain and also try to utilise nitrogen fixation and when on winter season you plant non-leginious plants we can use this nitrogen fixation this is called crop rotation.