Sustainable development of organic fertilizers

China is the largest country of the world in the production and consumption of chemical fertilizers. The use of chemical fertilizers is very large. Although the output of crops has been increased to a certain extent and to a certain extent, the damage to soil, water sources, agricultural products and the environment is increasing, such as: soil acidification, compaction, nutritional imbalances, groundwater pollution, heavy metal and nitrate content of agricultural products exceed the standards, etc., leading to a variety of ecological environmental pollution and human diseases. Due to the repeated application and random application of chemical fertilizers, and the lack of attention to the application of organic fertilizers, resulting in a lack of soil organic matter, resulting in a decline in soil fertility, has become an important limiting factor affecting the sustainable development of agriculture in my country and the stable and high yields of crops. Application of organic fertilizer machine is essential in npk fertilizer prodution line, it is to be equipped with the fermentation compost turner machine to ferment the raw materials that the series fertilizer machine can use the simple compost turner machine to ferment the raw materials. And then it is to be equipped with the fertilizer crusher machine and fertilizer mixer machine and fertilizer crusher machine to deal with the raw materials. We can use the chain crusher machine, and the horizontal mixer machine to deal with the organic raw materials. Next, when producing the organic fertilizer granulator, the fertilizer granulator machine, such as roller press granulator machine and rotary drum granulator machine are necessary to be equipped in the npk manufacturing process.