Compound fertilizer capable of adjusting acidity and alkalinity of soil

Abstract

The invention discloses compound fertilizer capable of adjusting acidity and alkalinity of soil. The compound fertilizer is prepared from the following components in parts by weight: 20 to 50 parts of manure, 10 to 20 parts of compound biofertilizer, 1 to 10 parts of activated sludge, 5 to 15 parts of plant ash, 5 to 15 parts of sesame meal, 5 to 10 parts of urea, 5 to 15 parts of ammonium dihydrogen phosphate, 1 to 8 parts of germ bran, 1 to 3 parts of sesbania leaves, 1 to 4 parts of humic acid and 1 to 5 parts of a soil acidity conditioner. By utilizing the compound fertilizer disclosed by the invention, the acidity and the alkalinity of the soil can be adjusted, physical characteristics of the soil are improved, the soil is activated, the problem of unbalanced nutrition in the soil is solved, and abundant nutrient substances and mineral elements also can be provided for growth of crops.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a compound fertilizer capable of adjusting soil acidity and alkalinity. Background technique [0002] Planting crops requires a large amount of fertilizer, and scientific and rational fertilization is an important aspect of high-quality, high-yield, and efficient development of crop production. However, the long-term use of traditional inorganic fertilizers will cause the following hazards: [0003] (1) Cause changes in soil acidity. Calcium superphosphate, ammonium sulfate, and ammonium chloride are all biological acidic fertilizers, that is, after plants absorb nutrient ions in the fertilizer, the hydrogen ions in the soil will increase, which will easily cause soil acidification. Long-term large-scale application of chemical fertilizers, especially when a single variety of chemical fertilizers are continuously applied, can occur in a short period of time. Soil acidifica...

AI Technical Summary

Problems solved by technology

Soil acidification will lead to the release of toxic substances, or increase the toxicity of toxic substances, which will have adverse effects on organisms

Soil acidification can also dissolve some nutrients in the soil. Under the action of rainfall and irrigation, it will infiltrate downward to replenish groundwater, causing the loss of nutrients, resulting in barren soil and affecting the growth of crops.

[0004] (2) Lead to soil compaction and decline in fertility

Extensive application of chemical fertilizers, land use without cultivation, resulting in a decline in soil organic matter, chemical fertilizers cannot compensate for the lack of organic matter, further affecting the survival of soil microorganisms, not only destroying the structure of soil fertility, but also reducing fertilizer efficiency

[0005] (3) Harmful substances pollute the soil