Salt-restraining special fertilizer for seashore solonchak rapes and production process thereof

Abstract

The invention relates to a salt-restraining special fertilizer for seashore solonchak rapes, comprising the following materials in parts by weight: 250-300 parts of organic fertilizers, 150-200 parts of humic acids, 130-170 parts of monoammonium phosphate, 200-220 parts of urea and 150-200 parts of saline and alkaline improved conditioners. The salt-restraining special fertilizer for the seashoresolonchak rapes is prepared by the following steps of: uniformly mixing grinded crop straws, rice chaff and waste liquid residues of a gourmet powder factory, and then piling up; adding a fibrinolysis compound bacterial agent, uniformly stirring and mixing, and piling up to obtain the organic fertilizers; sequentially adding the monoammonium phosphate, the urea, the humic acids, the organic fertilizers and the saline and alkaline improved conditioners to a stirrer and stirring; and then feeding into a rotary drum granulator for granulation so as to obtain a finished product, i.e. the salt-restraining special fertilizer for the seashore solonchak rapes. In the preparation of the salt-restraining special fertilizer, the organic wastes obtained from agricultural and industrial production areeffectively used as raw materials, a certain amount of the humic acids and agricultural gypsums are added and a scientific formula and a unique production process are adopted; in addition, the prepared novel fertilizer is applied to the seashore solonchak rapes and other crops and plays an important role.

Description

technical field [0001] The invention belongs to the technical field of fertilizers for agricultural production, and in particular relates to a salt-suppressing special fertilizer for rape in coastal saline soil and a production process thereof. Background technique [0002] Soil salinization is a global problem that affects the sustainable development of agriculture and the ecological environment. According to statistics, the area of ​​salinized soil in the world accounts for about 1 / 3 of the earth's land area. In my country, the scale of saline soil is quite large. Among the 100 million hectares of cultivated land, there are about 5.374 million hectares of saline soil, and another 44.088 million hectares of saline-alkali wasteland are distributed in Northwest, North China, Northeast China and coastal areas. Studying special fertilizers for salt-tolerant crops in coastal saline soil is one of the effective measures to control saline soil. It is of great significance to adju...

AI Technical Summary

Problems solved by technology

At this time, although there is water in the soil, the crops cannot absorb and utilize it, causing the physiological drought of the crops, resulting in poor growth of the crops, and in severe cases, they wither and die.

(2) The direct toxic effect of salt

(3) Unbalanced soil nutrients

(4) Deterioration of soil physical properties

A certain amount of soluble salt in the soil, especially sodium salt, can disperse the soil particles and destroy the structure, causing the soil to be muddy when it is wet and hard when it is dry, with poor permeability and poor tillability, seriously affecting the quality of tillage.

(5) The water, fertilizer, air and heat conditions of the soil are uncoordinated

[0010] At present, there is a clearer understanding of the growth obstacle factors of coastal saline soil crops. The traditional methods are mostly through irrigation to wash salt or reduce groundwater table, which is costly and still seasonal return salt

Rapeseed has a certain salt tolerance and is planted in a large area in coastal saline soil areas. However, the traditional fertilization habits are mostly inorganic fertilizers, which not only have no effect on salt suppression, but also cause the accumulation of soil salinity. eutrophication of surrounding water

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