Fertilizer Encyclopedia: Development and Application of New Composting Function

The traditional functions of composting include direct application to crop nutrition and indirect soil fertility, and the development of new composting functions is of great significance. The new composting function has three characteristics: prevention of pests and diseases by regulating soil micro-ecology; water control and fertilizer control, water and fertilizer uniformity; two-way controlled release through sustained release and release, so as to achieve nutrient dynamic balance. The company supports the research and development of compost, can grasp the technical commanding heights, preemptively carry out technological innovation and integration, and materialize in products. At the same time, composting is cost-effective and has strong market competitiveness, which helps enterprises to abandon their opponents, establish a blue ocean strategy, and identify economic growth points.

Another highlight in the new composting function is the development of waste resources. There are 5 types of wastes that can be recycled : food processing waste, including sugar factory, alcohol factory, waste liquid of MSG factory, waste residue, sludge; waste liquid and waste residue of paper mill; edible fungus residue, oxytetracycline residue; municipal sewage Mud, kitchen sludge; and straw, water hyacinth (water lotus). In the early stage, dehydration, deodorization, acid-base neutralization, organic pollutant degradation (using chicken manure antibiotics, POPs ), nutrient balance, vertical and horizontal balance, etc. can be used to treat the waste. Disposal of waste also requires the development of ideas, strengths and weaknesses, and the use of acid and alkali, dry and wet methods to waste treatment. There is a need to overcome new dewatering techniques when treating sludge.

During plant growth, soil-borne diseases such as tomato bacterial wilt, banana yellow leaf disease, ginger, cucumber wilt, and tobacco mosaic disease often cause continuous cropping obstacles and are difficult to treat. The methods currently used are chemical control and disease resistance breeding. Chemical control mainly uses spraying fungicides, soil fumigation and other methods, but the disadvantages are poor results, causing environmental pollution, pathogenic bacteria resistance, reducing crop quality and endangering food safety. Disease-resistant breeding also takes a long time, high input, and disease resistance is susceptible to fluctuations in soil environment and bacterial variation. Therefore, new technologies are urgently needed for ecological regulation, fertilization and disease prevention.

The new features of composting have been expanded in many ways. Composting has nutritional functions, regulating release rate, sustained release, two-way regulation of release; water retention function, fertilization and water conservation, integrated regulation of water and fertilizer; technical goals, efficiency reduction, savings ( capital, energy ) , pollution reduction. Technological innovation can achieve innovation in new raw materials, and can use industrial and agricultural wastes such as sludge, sludge, and waste liquid, as well as low-grade ore such as phosphorus, magnesium, and potassium. Processing technology has been innovated. The traditional process includes high temperature and high pressure, strong acid processing, but the use of high-grade raw materials, high energy consumption, high water solubility, so high efficiency before the thick bottom; while the new technology department uses mild reaction, moderate water solubility, to achieve continuous fertilization, Achieve better results.