Special slow-release fertilizer for peanuts in saline-alkali soil

Abstract

The invention discloses the technical field of saline-alkali soil improvement and high-efficiency fertilization, and specially relates to a special slow-release fertilizer for peanuts in saline-alkalisoil. The special slow-release fertilizer is prepared from the following components in parts by weight: 18 to 24 parts of urea, 8 to 12 parts of calcium dihydrogen phosphate, 9 to 15 parts of potassium sulfate, 6 to 9 parts of hydrated lime, 4 to 8 parts of boric acid, 20 to 24 parts of fulvic acid, 10 to 16 parts of green manure and 2 to 6 parts of biological bacterium powder. The green manure is mainly produced by fermentation of folium sesbaniae cannabinae and chicken manure, and has a long-lasting fertilizer effect, and the folium sesbaniae cannabinae and chicken manure can be combined toprovide more organic matter for the soil and effectively improve the soil structure of saline-alkali soil; the green manure can activate and absorb an insoluble phosphorus and potassium compound in the soil, and the folium sesbaniae cannabinae as a leguminous plant has strong nitrogen-fixing ability and can provide more balanced nutrients to the soil, thereby effectively increasing the yield of the peanuts. The special slow-release fertilizer for peanuts in saline-alkali soil provided by the invention has the advantages of effectively improving the saline-alkali soil while achieving high-efficiency fertilization of peanuts, and increasing the peanut planting area.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement and high-efficiency fertilization, and specifically relates to a special slow-release fertilizer for saline-alkali land peanuts. Background technique [0002] There are large areas of saline-alkali land in the coastal and inland areas of my country. The high salt content of the saline-alkali soil is likely to cause the consolidation and precipitation of nutrients in the soil. It is difficult for crops to absorb nutrients in saline-alkali land. It reduces the utilization rate of fertilizers to a great extent, causing a nausea cycle. Peanut is a leguminous plant and one of the main oil crops. Among oil crops, the oil yield of peanut can reach 45% to 50%, which is much higher than other oil crops. The relative content of oleic acid in peanuts is as high as more than 50%. Oleic acid is beneficial to the human cardiovascular system and can lower blood lipids and cholesterol. my cou...

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Problems solved by technology

[0002] There are large areas of saline-alkali land in the coastal and inland areas of my country. The high salt content of the saline-alkali soil is likely to cause the consolidation and precipitation of nutrients in the soil. It is difficult for crops to absorb nutrients in saline-alkali land. It reduces the utilization rate of fertilizers to a great extent, causing a nausea cycle. Peanut is a leguminous plant and one of the main oil crops. Among oil crops, the oil yield of peanut can reach 45% to 50%, which is much higher than other oil crops. The relative content of oleic acid in peanuts is as high as more than 50%. Oleic acid is beneficial to the human cardiovascular system and can lower blood lipids and cholesterol. my country is one of the largest peanut consumption countries in the world. However, peanuts are suitable for growing in acidic soil. Peanut-specific fertilizers are also mostly suitable for use in acidic soils. In order to increase the planting area of ​​peanuts, it is necessary to develop a peanut-specific fertilizer suitable for use in saline-alkali soils.

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