Carbon-based biological potassium fertilizer

Abstract

The invention relates to a carbon-based biological potassium fertilizer which is a fertilizer prepared by mixing biochar with a potassium fertilizer, a beneficial bacterial agent and a synergistic agent. The carbon-based biological potassium fertilizer can reduce the curing rate of a potassium nutrient element in soil, promote the dissolution and the release of cured potassium, improve the absorption utilization rate of crops, reduce the fertilizer investment cost, improve the total amount of potassium decomposition bacteria in soil, promote the activity of the potassium decomposition bacteria, covert a fixed potassium element in the soil to a soluble effective potassium nutrient element which can be directly absorbed and utilized by the crops, alleviate a soil hardening phenomenon, increase the soil aggregate structure, reduce the soil volume weight, improve the soil biological activity, improve the soil environment, reduce the dependence on imported potassium fertilizers, reduce application amounts of traditional potassium fertilizers, and safeguard the Chinese agriculture and food safety.

Description

technical field [0001] The invention relates to a fertilizer mixed with biological black carbon and potassium fertilizer. Background technique [0002] At present, farmers use a large amount of conventional chemical fertilizers, which directly results in the imbalance of various nutrients in the soil. According to the survey results, the soil is generally deficient in potassium. Potassium is one of the macronutrient elements necessary for plants. Potassium has an important impact on the normal growth and development, yield formation, stress resistance and quality of plants. Potassium deficiency in soil or imbalance of potassium balance has become an obstacle to further improvement of crop yield and quality. Potassium in my country's soil has long been balanced by the application of farmyard manure. With the continuous increase in the amount of nitrogen and phosphorus fertilizers and crop yields, only the supplement of potassium and farmyard manure in the soil can no longer...

AI Technical Summary

Problems solved by technology

However, if potassium fertilizer is applied alone for a long time, the solidification rate of conventional potassium fertilizer in the soil will increase, the effective utilization rate of potassium element will be low, the absorption rate of crops will decrease, the production cost will be increased, the soil will be easily compacted, and the growth and development of crop root system will be inhibited; Because the activity of potassium-dissolving bacteria in the soil is low, it is difficult to convert conventional potassium fertilizers into potassium nutrients that can be directly absorbed and utilized by crops, which increases production costs; long-term single application of conventional potassium fertilizers is easy to form mineralized substances, resulting in soil compaction