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

Abstract

The invention discloses a special slow-release fertilizer for Chinese chestnut 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 compounding the host materials with necessary nitrogen, phosphorous and potassium for growing development of the Chinese chestnut 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 chestnut. 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 chestnut 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 chestnut are facilitated.

Description

[0001] technical field [0002] The invention belongs to the technical field of agricultural fertilizer production, and in particular relates to a chestnut-specific slow-release fertilizer with biomass granular carbon as a matrix and a preparation method thereof. Background technique [0003] Chestnut is a perennial fruiting tree, and the harvest of fruit every year will take away a large amount of nutrients. If it is not supplemented in time, it will inevitably affect the tree vigor and cause serious big and small years. Therefore, rational fertilization is one of the important measures to promote the robustness of chestnut trees, enhance resistance and prolong the fruiting period, and obtain high and stable yields. Chestnut has a large amount of nitrogen absorption and takes a long time. It continues to absorb nitrogen from bud germination to fruit harvest. Among them, the absorption amount is the most during the rapid fruit expansion period, and it gradually decreases aft...

AI Technical Summary

Problems solved by technology

With the continuous expansion of chestnut planting area, organic fertilizers can no longer meet the needs, and the repeated application of chemical fertilizers has the following shortcomings: First, the current chestnut is not considered a high-efficiency fruit, and fruit farmers are unwilling to spend too much time and energy on multiple fertilization; The second is that the root regeneration ability of chestnut is not strong. Frequent trench digging and fertilization will cut off a large number of roots and affect the absorption of nutrients.

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.