Question

how does the crop rotation help in the replenishment of soil nutrients

Answer 1

after the harvesting of any cereal crops such as we leguminous plants are grown on the field such as peas. microorganism or bacteria called rhizobium lives in the roots of leguminous plants and converts nitrogen into nitrates once the cropped the leguminous crop is cut the roots are left in the soil the decompose and the night rates are released into the soil which helps in the replenishment of the soil with nitrogen. nitrogen is one of the most essential nutrient that is required for the plants growth and it is also and inorganic nutrient

Answer 2

here's your answer.........
each crop uses more of some nutrients and less of the others. farmers, therefore change their crops in each season so that the soil is not depleted of any particular nutrient. this is called crop rotation. for example, wheat or rice users up large amounts of nitrogen from the soil. this nitrogen can be naturally replenished if the next crop grown is that of a legume, like a pea or groundnut. bacteria called rhizobium are present in the nodules of roots of leguminous plants. they can fix atmospheric nitrogen to form water -soluble nitrogen compounds. the soil is then ready for the next wheat or rice crop............

i hope it will help you..............