Plum tree BB fertilizer containing macroelements, secondary elements and microelements for application in calcareous soil

Abstract

The invention provides a plum tree BB fertilizer containing macroelements, secondary elements and microelements for application in calcareous soil. According to balanced fertilization 'wooden barrel law'and 'soil fertility grading method', five fertilizer sources such as monoammonium phosphate, urea, potassium chloride, calcium magnesium phosphate powder and phosphogypsum particles are selected to prepare the plum tree BB fertilizer containing the macroelements of nitrogen, phosphorus and potassium, the secondary elements of calcium, magnesium and sulfur, and the microelements of iron, zinc, manganese, boron, molybdenum, chlorine and copper; the fertilizing amount is reduced by utilizing the compatibility of the five fertilizer sources for improving the fertilizer efficiency, and the price of the plum tree BB fertilizer can be lower than the price of a compound fertilizer with the same content on the market by RMB 20 per 50 kg; and according to orchard tests, under the conditions of same phosphorus and nitrogen, by applying the BB fertilizer prepared by the five fertilizer sources such as monoammonium phosphate, urea, potassium chloride, calcium magnesium phosphate powder and phosphogypsum particles rather than applying a BB fertilizer prepared by using diammonium phosphate as a phosphorus source, the average plum yield per mu can be increased by 10%-20%, so as to open up a new space for peasants to increase income and strive to prosper.

Description

technical field [0001] The invention belongs to the field of formula fertilization, in particular to a plum tree BB fertilizer which is applied in calcareous soil and contains a large amount of medium and trace elements. Background technique [0002] The so-called "BB" fertilizer is the abbreviation of English Bulk Blending Fertilzer. It is mainly a kind of compound fertilizer formed by physically blending two or more single fertilizers or compound fertilizers in a certain proportion. At present, some developed countries promote the "BB" fertilizer. The area of ​​BB" fertilizer has reached more than 80%, but my country is still using traditional fertilization experience, resulting in a passive situation of using one-third of the world's chemical fertilizers to produce one-fifth of the world's grain. Under the guidance of the idea of ​​"fertilization" as "formula fertilizer application", the promotion of "BB" fertilizer area has been greatly developed, but in the process of pre...

AI Technical Summary

Problems solved by technology

[0002] The so-called "BB" fertilizer is the abbreviation of English Bulk Blending Fertilzer. It is mainly a kind of compound fertilizer formed by physically blending two or more single fertilizers or compound fertilizers in a certain proportion. At present, some developed countries promote the "BB" fertilizer. The area of ​​BB" fertilizer has reached more than 80%, but my country is still using traditional fertilization experience, resulting in a passive situation of using one-third of the world's chemical fertilizers to produce one-fifth of the world's grain. Under the guidance of the idea of ​​"fertilization" as "formula fertilizer application", the promotion of "BB" fertilizer area has been greatly developed, but in the process of preparing and producing BB fertilizer, there are still many disadvantages: First, the selection of fertilizer sources is unscientific, and the relationship between fertilizers has not been brought into play. Synergistic joint response, the so-called joint response, that is, when two or more elemental fertilizers are used in combination, the fertilizer output exceeds the sum of the yields of the single application of elemental fertilizers

Some enterprises do not know the characteristics of chemical fertilizers very well, and use urea to mix calcium superphosphate and nitrophosphate fertilizers, causing severe deliquescence, and even hundreds of tons of deliquescence deliquescence into empty bags, causing heavy losses; second, they only pay attention to nitrogen, phosphorus, and potassium. The middle elements of calcium, magnesium, and sulfur and the trace elements of iron, zinc, manganese, boron, molybdenum, chlorine, and copper are ignored; the third is that they only pay attention to the production and preparation of BB fertilizers for bulk crops, and do not pay attention to the production and preparation of BB fertilizers for vegetables and fruit trees. Contradicting with the international market, at present, the price of my country's bulk agricultural products is higher than that of the international market, and there is no competitiveness, while the prices of vegetables and fruits in my country are lower than those of similar products in the international market. In accordance with the national policy of zero growth in chemical fertilizer production, the research on the application of a large amount of BB fertilizers for fruit trees and vegetables containing a large amount of medium and trace elements in calcareous soil was carried out in a timely and early manner.

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