Cultivating plants in a rotatingmanner at regular intervels of time is crop rotation.for in a field if spinach are planted for aparticular time.after taking the yield ,we can plant another crop like pea, afterthat another like that. if we are doing like this we will get a good yield. the bio wastes ofeach crop will act as the manure for the other and the fertility of the soil will inncrease so this process is called enviornment friendly
2 4 2