Fertilizing method and fertilizer for improving crop yield in saline alkali soil

Abstract

The invention discloses a fertilizing method and fertilizer for improving crop yield in saline-alkali soil, and relates to the technical field of high-tower fertilizers, the method comprises the following steps: a, applying a base fertilizer before cultivation, the base fertilizer being a high-tower fertilizer; b, applying phosphorus-containing mixed acid with the concentration of 20-40%, and sequentially carrying out rotary tillage, watering and sowing; c, topdressing is carried out after sowing, the topdressing is an organic silicon organic-inorganic mixed fertilizer, the mixed acid is formed by compounding hypophosphorous acid and phosphorous acid, the mixed acid comprises 25-40% of hypophosphorous acid and 60-75% of phosphorous acid, and the high tower fertilizer is prepared from the following raw materials in parts by weight: 15-18 parts of ammonium nitrate, 5-10 parts of ammonium phosphate, 25-30 parts of potassium sulfate, 15-25 parts of active silicon and 15-30 parts of organic matter. The fertilizer provided by the invention can promote the nutrient absorption rate of crops, improve the yield of crops and avoid soil hardening.

Description

technical field [0001] The invention relates to the technical field of high-tower fertilizers, in particular to a fertilization method and fertilizer for improving crop yield in saline-alkali soil. Background technique [0002] High tower fertilizer has many advantages, such as melting holes, fast product dissolution, fast absorption, stable product quality, rich in nitrate nitrogen and ammonia nitrogen, low moisture content, and fast melting speed. However, there are relatively few plants or crops suitable for high-tower fertilizers at present, because the phosphorus content in general high-tower fertilizers is low, so this problem needs to be solved in the prior art. For crops and plants that require higher phosphorus content, Either use high-tower fertilizer, or use high-tower fertilizer as base fertilizer, and then apply other fertilizers with higher phosphorus content for topdressing, and the effect of topdressing is not obvious, and the absorption effect of phosphorus ...

AI Technical Summary

Problems solved by technology

However, there are relatively few plants or crops suitable for high-tower fertilizers at present, because the phosphorus content in general high-tower fertilizers is low, so this problem needs to be solved in the prior art. For crops and plants that require higher phosphorus content, Either use high-tower fertilizer, or use high-tower fertilizer as base fertilizer, and then apply other fertilizers with higher phosphorus content for topdressing, and the effect of topdressing is not obvious, and the absorption effect of phosphorus after topdressing is not good

As a result, the scope of application of high-tower fertilizers that are mass-produced is not comprehensive, and the advantages of high-tower fertilizers cannot be fully utilized.

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