Environmental protection agriculture has also quietly emerged in Japan. For a long time, rice in Japan was grown by soaking in pesticides and fertilizers. According to the survey of the Ministry of Agriculture, Forestry and Fisheries, the annual pesticide cost per 1, square meters of paddy field is 7,3 yen, which is 5.2 times that of the United States, and the phosphorus fertilizer used is 2 times that of the United States and the potassium fertilizer is 25 times that of the United States.
Plant Factory Since 199, Takeshi Dingfu of Xinxian County has carried out experiments on a 4,-square-meter paddy field to ferment fish dregs, bean cakes and rapeseed cakes and use them as fertilizers. After harvest, the grains of rice glowed greatly, but the yield decreased by 15%. Takeshi Dingfu went to the experimental cultivation fields in Toyama and Akita counties for advice, and learned to raise hybrid ducks in paddy fields so that ducks could eat weeds and pests in the paddy fields. In the transplanting season, two new methods to control the growth of weeds are to transplant rice seedlings into paddy fields without tillage. Thanks to the efforts of Takeshi Dingfu, the green rice swayed gently in the midsummer breeze, and the hybrid ducks were playing freely in the rice field, and the barnyard grass in the field could not grow, and the quality of rice was greatly improved. Inspired by this, the neighboring farmers competed to follow suit.
It is worth noting that Japan is developing a "plant factory". This is a perennial plant growth system that can control the environment at a high level. In this system, it uses hydroponics instead of soil. Through the control of light, temperature, humidity, carbon dioxide concentration and fertilizer, the cultivated plants can grow and harvest most effectively in a short time. This kind of plant factory is actually to industrialize agriculture and is conducive to environmental protection. Japan has begun to export "plant factory" technology overseas.
in Europe, environmental protection agriculture developed earlier and faster. The "International Organic Agriculture Movement Association" established in 1972 stipulates that all production projects of the whole enterprise must be carried out in the way of organic agriculture, and it is forbidden to use chemically synthesized nitrogen fertilizer, other water-soluble fertilizers, chemical plant protection agents and chemical storage protection agents in crop production; Artificial hormones and other yield-increasing agents are prohibited in animal husbandry production. In order to protect and promote the development of organic agriculture and stop the increasingly prominent counterfeiting of organic agricultural products by conventional agricultural products.