Special slow-release fertilizer for Chinese cabbage by taking biomass granular charcoal as matrix and preparation method thereof

Abstract

The invention discloses a special slow-release fertilizer for Chinese cabbage by taking biomass granular charcoal as matrix and a preparation method thereof. The method taking granular charcoal prepared from agricultural waste biomasses such as corn cob, peanut shell, rice husk and mushroom matrix as host materials comprises the steps of compounding the host materials with necessary nitrogen, phosphorous and potassium for growing development of the Chinese cabbage and other nutrient elements by utilizing the microporosity and strong adsorption capacity, so as to prepare the special slow-release fertilizer for granular biomass charcoal Chinese cabbage. The biomass granular charcoal used in the slow-release fertilizer is black biomass granular charcoal particles prepared from the agricultural waste biomasses which are incompletely burnt under a low-oxygen condition, has a plurality of characteristics similar to soil humus, strong capacities of adsorbing and maintaining nutrients and moisture, and good slow release performance on the nitrogen, phosphorus and potassium, and also can stimulate crop growth. Therefore, the prepared slow-release fertilizer can effectively supply the requirements of the Chinese cabbage on nutrients during the entire growing period after being applied once, and has the characteristics of increasing the soil fertility and improving the soil structure, and high efficiency and environmental protection; and large-scale promotion and application in production of the Chinese cabbage are facilitated.

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 cabbage with biomass granular carbon as a substrate and a preparation method thereof. Background technique [0003] In cabbage production, reasonable fertilization is an important measure to ensure yield and quality. Cabbage, with its leaves as its product, is the most sensitive to nitrogen requirements. Sufficient nitrogen supply will increase chlorophyll and increase carbohydrate production, which also promotes the growth of leaf bulbs and increases yield. Phosphorus can promote the differentiation of leaf primordia, make the outer leaves occur faster, increase the differentiation of bulbous leaves, and also promote its transportation to leaf bulbs. Sufficient supply of potassium fertilizer makes the cabbage leaf balls full, increases the yield, and also increases the nutrient content in the...

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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.