Question

How does flooding rice fields reduce the need for herbicides and pesticides in rice farming?

Answer 1

growing rice or paddy needs excess water at the initial stage. even if a minor flood occurs there will not not be any major harm to the crop plants. since flow of water carries manure and other organic material with it. the excess of water also enables the weeds growing to decay and act as natural fertilizer. so the farmers are not needed to add any additional herbicides.

Answer 2

Flooding rice fields reduce the need for herbicides and pesticides in rice farming. Growing rice or paddy requires a little amount of water in the initial stage. If a minor flood is caused, it'll not harm the field. It is because flow of water contains manures and other organic material. The weeds that grow also decays due to the water that is present. Thus it act as a natural fertilizer.