Of these four, the first is No Tillage, meaning the soil is not tilled or turned. For centuries Farmers have believed that the plod is essential for cultivating crops. Then, doing without tillage is fundamental to natural agriculture. The soil is cultivated naturally through the penetration of plant roots and the action of microorganisms and  small animals and earthworms. The second  is no chemical fertilizers. Humans are interfering with nature, and although they try and they cannot heal the wounds that arise. Their reckless farming practices deplete the soil of essential nutrients and  resulting in soil depletion every year. Left to its own devices. The soil maintains its fertility naturally, in accordance with the orderly life cycle of plants and animals. 

 The third is the ban on weeding or the use of herbicides. Weeds help build soil fertility and community biological balance.The basic principle is that weeds should be controlled, not eliminated. The fourth is not a chemical addiction. As unnatural practices such as tillage and fertilization have resulted in weak crops, disease and insect imbalances have become a serious problem in agriculture. Nature left to itself is in perfect balance. Insect pests and plant diseases are always present, but they do not occur naturally to the extent that they require the use of toxic chemicals. A sensible approach to disease and insect control is to grow strong plants in a healthy environment. These four principles of natural economy are in harmony with the natural order and lead to the replenishment of nature’s bounty. 

 A narrow view of natural agriculture holds that it is good for the farmer to use the organic matter in the soil and  raise animals well, and that this is the best and most efficient way to use nature.  But in terms of personal practice, while it’s fine,  the spirit of true natural farming cannot be kept alive that way. The ultimate goal of farming is not to grow crops, but to cultivate and improve people. Mr. Fukuoka denies the empty image of nature  created by the human intellect and clearly distinguishes it from nature itself  experienced through non-discriminatory understanding.