In recent years, under the strong advocacy of the state, China's new fertilizers have developed rapidly, and various new types of fertilizers have emerged. However, at present, it is not compatible with the vigorous development of new fertilizers. There is a lack of new farmers with culture and technology in rural areas. Many farmers have low cultural quality, conservative thinking, slower acceptance of new things, and less knowledge of agrochemicals. They do not know that improper selection of fertilizers or improper application can lead to crop yield reduction or even failure, especially for new fertilizers. In order to help farmers understand new fertilizers, rational purchase of fertilizers, and to provide a little information to grassroots agricultural resources dealers, the author introduces as follows:
Slow-release fertilizer: refers to a type of fertilizer that pre-sets the release pattern of fertilizer during the growing season of the crop by a certain regulation mechanism, so that the nutrient release is consistent with the crop fertilizer requirement. It has the advantages of improving fertilizer utilization rate, reducing the amount of use and fertilization, reducing production cost, reducing environmental pollution, improving the quality of crop products, etc., so that farmers can achieve a nutrient at all stages of the crop growth period by applying only one fertilizer per crop. The demand is the best carrier of scientific fertilization technology and an important trend in fertilizer development. The disadvantage is that the price is a little higher than ordinary fertilizer, and the release and dissolution are slower, and even the early effect is not as good as ordinary fertilizer.
Water-soluble fertilizer: It is an instant compound compound with fast dissolving and fast dispersing. It can be quickly dissolved in water and easily absorbed by crops. It can be used in facility agriculture such as drip irrigation to achieve water and fertilizer integration and achieve water saving and fertilizer saving. . Water-soluble fertilizers include: a large number of elemental water-soluble fertilizers, water-soluble fertilizers containing amino acids, water-soluble fertilizers containing humic acid, and water-soluble fertilizers containing trace elements. Conventional water-soluble fertilizers contain various nutrients such as nitrogen, phosphorus, potassium and various trace elements required for crop growth. When applied, the formula can be designed according to the nutritional needs of the crop growth to avoid unnecessary waste, and the disadvantage is that the fertilizer effect is relatively short.
Formulated Fertilizer or Blended Fertilizer (BB Fertilizer): A new type of fertilizer developed in the practice of soil testing and formula fertilization based on compound fertilizer (composite fertilizer). It is a compound formula produced by compound fertilizer producers for different crop fertilizer requirements, soil nutrient content and fertilizer supply performance. It can effectively regulate the contradiction between crop fertilizer and soil fertilization, and supplement crops in a targeted manner. The nutrients needed, what is missing in the crop, how much to supplement, and the amount of fertilizer to be controlled within a scientific and reasonable range. The disadvantage is that there are more popular formula fertilizers on the market, and there are fewer targeted fertilizers.
Commodity organic fertilizer: It is organic fertilizer produced by industrialization and commercialization, which is mainly composed of river mud, weeds, human and animal waste, crop straw and other resources rich in organic matter and available resources. Compared with traditional farmyard manure, the nutrient content is high and the quality is stable. Especially in the production process, harmful microorganisms such as parasite eggs and grass seeds and other debris are killed, which can reduce the spread of pests and diseases. The application of organic fertilizer can increase the soil organic matter content, improve the physical properties of the soil, and have certain effects on improving the quality of agricultural products. The disadvantage is that although the content of nutrient elements in organic fertilizer is relatively comprehensive, the content of active ingredients is low, and the process of organic fertilizers being decomposed and decomposed by plants is slower. It is best to use chemical fertilizers combined with organic fertilizers to make the advantages complementary.
Trace element fertilizer: Trace elements are relatively small amounts of elements, such as boron, manganese, iron, zinc, copper, molybdenum and other nutrients. Crops, although small in quantity, are indispensable. Crops need high quality and high yield, and need a variety of nutrients to complement each other. Not only do they need a lot of elements of nitrogen, phosphorus and potassium, but also medium and trace elements. The lack of any element in the soil will affect the normal growth and development of crops. In the absence of growth, growth and development will be affected, yield is reduced, quality is declining. The lack of trace elements in crops in many areas of China has become more common, and some places have restricted the improvement of quality and yield of crop products.
Microbial fertilizer: It is a fertilizer made of living cells of one or more beneficial microorganisms, mainly including rhizobium agent, nitrogen-fixing bacteria agent, phosphorus bacteria agent, antibiotic agent, compound bacteria agent, etc.; peptide urea: is promoted by metalloproteinase Nutrient absorption, can increase the utilization rate of nitrogen fertilizer; control compound fertilizer: by fixing the nutrient elements of fertilizer, reducing nutrient loss to improve utilization rate......
It is hoped that enterprises will publicize the basic characteristics of chemical fertilizer products during the agrochemical service, objectively introduce the scope of application of fertilizer products, use methods, precautions, etc., and also teach the fertilization common sense of various crops in different seasons and different soil types. At the same time, it is hoped that farmers can learn more about agrochemical knowledge. When purchasing chemical fertilizers, they can scientifically and rationally select fertilizers according to local soil characteristics, crop varieties and fertilization methods, and strive to achieve high yield and income increase, and reduce farming costs. the goal of.
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