Saline-alkali soil improvement fertilizer and preparation method thereof

Abstract

The invention discloses a saline-alkali soil improvement fertilizer and a preparation method thereof. The improvement fertilizer comprises the following components in parts by weight: 15-25 parts of nutrient substances, 50-65 parts of an organic filler, 8-15 parts of an inorganic filler, 15-50 parts of acidic mellow soil and 5-15 parts of water retention resin. The saline-alkali soil improvement fertilizer mainly comprises the nutrient substances, the organic filler, the inorganic filler, the acidic mellow soil and the water retention resin. When the saline-alkali soil improvement fertilizer is prepared, the inorganic filler and the nutrient substances are used as main raw materials and a polyglutamic acid aqueous solution is used as an adhesive for granulation to obtain granules which have good water retention property and can provide nutrients for growth of microorganisms and plants, and then a water retention layer is formed on the surfaces of the granules through the water retention resin, so that the land condition of the saline-alkali land can be effectively improved, and the growth effect of the plants is improved.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a saline-alkali soil improvement fertilizer and a preparation method thereof. Background technique [0002] At present, domestic saline soil or saline-alkali soil has a wide range of distribution, a large area, and many types, mainly occurring in arid, semi-arid and semi-humid areas. The soluble salts of saline-alkali soil mainly include sulfuric acid such as sodium, potassium, calcium, and magnesium Salt, chloride, carbonate and bicarbonate, sulfate and chloride are generally neutral salts, carbonate and bicarbonate are basic salts. Specifically, the formation of soil salinization or salinization is due to the salt in the bottom soil or groundwater rising to the surface with capillary water. After the water evaporates, the salt accumulates in the surface soil. It can also be understood as the accumulation of soluble salt in the soil surface. phenomenon or proces...

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Problems solved by technology

[0003] Due to its high concentration in saline-alkali soil, it will inhibit the growth of plants, thereby affecting the growth of economic crops and causing economic losses. In order to increase the crop yield in saline-alkali soil, on the one hand, it is necessary to fertilize and care for the crops themselves. On the other hand, it is necessary to Improving the saline-alkali land, so as to solve the problem of low-yield or even unusable saline-alkali land for a long time, solve the problem of saline-alkali land and make the saline-alkali land can be used is an important measure and direction to alleviate the contradiction between man and land. Salt to reduce the salt content, then plant saline-alkali-tolerant plants to fertilize the soil, and finally plant crops. This method has a long cycle and high cost, and it is difficult to effectively and quickly transform the saline-alkali land. Although it can have a good effect in a short period of time, its effect is still significantly inhibited due to the limited growth of microorganisms. In order to solve the above problems, a saline-alkali land improvement fertilizer that can act quickly and has a good and continuous repair effect is provided. , the present invention provides the following technical solutions

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