In 2010, China produced 3.06 billion tons (fresh weight) of manure, containing 14 million tons of N, 10.2 million tons of P2O5 and 12 million tons of K2O, respectively. These nutrients totaled 2013 billion yuan. Manure is very important in the supply of nutrients, soil improvement, and soil-borne disease control in vegetable fields. Almost all vegetable fields use organic fertilizer, while two-thirds of the vegetable fields mainly use manure. Sustainable vegetable field production needs to be done: First, the selection of appropriate manure types, dosages and application methods can improve the application effect of manure, avoid excessive application of harm to vegetable quality and environment; Second, old vegetable fields need to use C The type of /N ratio is high; Third, the principle of controlling total input is taken into account, taking into account the cumulative effect of manure application over the years; Fourth, realizing the effect of partial replacement of manure by manure, rational selection of water-soluble fertilizer on the basis of manure application at the bottom, controlling the amount of topdressing fertilizer Through irrigation and fertilization to improve the comprehensive integration technology of organic-inorganic compounding; Fifth, develop functional organic fertilizer, improve the mechanized application degree of manure, and realize the harmless application of manure.
It is estimated that by 2030, China will add another 1 billion tons of manure, so that a larger amount of manure nutrients need to be managed. Therefore, the challenges we face include: 1. How to continuously recycle these increasing organic fertilizer resources; We will vigorously promote the knowledge of organic fertilizer application, popularize the concept of scientific quantitative fertilization, and require agricultural technicians to master the quantitative principle of manure application and the stacking fermentation technology of organic materials, so as to promote the application of manure to the vegetable farmers after harmless; To control the environmental hazards caused by the blind application of manure to extremely high production systems (fruit trees, vegetables, etc.).
LDPE Filler,Plastic Filler Masterbatch,Corlor Masterbatch
Pearlescent Masterbatch Co., Ltd. , http://www.nsmasterbatch.com