The excessive use of fertilizers and pesticides has caused significant damage to the environment and the economy;however,there are no effective measures that reduce fertilizer and pesticide use without decreasing grain yield.This study summarizes the history,function,and weaknesses of the classic farming technology of China.In addition,we point out that fish and ducks supersede humans in the role of 'predator',and illustrate how use of animals to control and reduce most pathogens,pests,and weeds is beneficial.Finally,we explain why the rice...
