Green Revolution

Green Revolution Popular in 1950 to 1980. It's a new method to agriculture using of chemical and farm machinery industries. In beggining, this method make a good crop and big succes, but this condition no longer successfully. Some of side bad effect appear. Fertilizer from chemical substance make an plant using fertilizer like a drug, bad insect redevelope their body to make antibody and againt insecticides. In other side, when machinery cropping a plant in one action, it's make top soil formation not stabil about erotion cause rain dropfall. Finally the loss of top soil has lowered productivity of the land. I think if we can use "green revolution" with smart and put it in the precise place, we can reduce bad side of green revolution.
See More http://en.wikipedia.org/wiki/Green_Revolution