Special slow release fertilizer for kidney bean by using biomass granular carbon as matrix and preparation method thereof

Abstract

The invention discloses a special slow release fertilizer for kidney bean by using biomass granular carbon as a matrix and a preparation method thereof. Granular carbon prepared from agricultural wastes such as corn cobs, peanut shells, rice hulls, edible fungi matrix and the like are used as a matrix material; and based on the micro-pores and strong adsorption capability of the matrix material, the granular biomass carbon-based special slow release fertilizer for the kidney bean is prepared by compounding the matrix material and nitrogen, phosphorus, potassium and other nutritional elements required by growth and development of the kidney bean. The biomass granular carbon is black biomass granular carbon granules formed after the agricultural waste biomass is incompletely burnt under the low-oxygen condition, has multiple properties similar to soil humus and strong adsorption and nutrient and moisture holding capabilities, can stimulate growth of crops, and has good slow release performance on nitrogen, phosphorus and potassium; when the prepared slow release fertilizer is applied at one time, the requirements of the kidney bean for nutrients in the whole growth period can be effectively met; and the slow release fertilizer has the characteristics of increasing soil fertility, improving the structure of soil, realizing high efficiency and environment friendliness and the like, and is beneficial to large-scale popularization and application in the production of the kidney bean.

Description

[0001] technical field [0002] The invention belongs to the technical field of agricultural fertilizer production, and in particular relates to a special slow-release fertilizer for kidney beans with biomass granular carbon as a matrix and a preparation method thereof. Background technique [0003] In bean production, rational fertilization is an important measure to ensure yield and quality. Kidney bean is a leguminous crop, and its roots have rhizobia, but its lateral roots are rare, and its root nodules are relatively few, so its ability to fix nitrogen is relatively weak. In the early stage of plant growth, because the root nodules have not yet fully developed and the nitrogen fixation ability is weak, nitrogen fertilizer should be supplied in an appropriate amount. However, the supply of nitrogen should not be too much. Too much nitrogen fertilizer will easily cause flower drop and delay pod formation. After flowering and pod formation, the plant’s demand for phospho...

AI Technical Summary

Problems solved by technology

In the burning season, there have been many incidents where flights could not land and highways were forced to close due to the smog in the sky, which not only wasted a lot of precious resources, but also brought serious pollution to the environment.