Preparation and use method of agricultural biological coke fertilizer

Abstract

The invention discloses a method for preparing a biological coke fertilizer for agricultural use and the usage thereof. The method comprises the following steps: (1) a waste biomass raw material is dried, sieved by a 10-200 mesh sieve, and then charred at the temperature of 200-550 DEG C and in a limited oxygen condition for 1-12 hours so as to obtain the biological coke fertilizer; (2) the prepared biological coke fertilizer is applied to soil at 0.2-200t/ha; (3) the soil at 0-30cm of the surface layer is ploughed in order that the fertilizer is completely mixed in the soil; (4) crops are planted on the treated soil to produce safe agricultural products. The biological coke fertilizer is a third generation fertilizer which is pollution-free and environment-friendly with low green house gas emission following the chemical fertilizers and the organic fertilizers. The biological coke fertilizer is characterized by available raw materials, simple process and long-term effect. The biological coke fertilizer contains lots of carbon and other nutrient elements, has fertility effect, can improve the physical, chemical and biological properties of the soil, increase the accumulation ability of soil nutrients, enhance the effective utilization of the nutrient elements, reduce losses, and avoid or relieve the environmental pollution.

Description

technical field [0001] The invention relates to the preparation and use technology of environment-friendly crop fertilizer, in particular to a preparation and use method of agricultural bio-coke fertilizer. Background technique [0002] Soil is the most basic natural resource and material basis for human survival, development and agricultural production. The nutrients absorbed by plants mainly come from the soil, and the quality of the soil environment directly determines the yield and quantity of agricultural products. In recent years, the continuous increase of population and the decrease of cultivated land have increased the intensity of soil development and utilization, so that the consumption of soil organic matter and nutrient elements has greatly exceeded its natural supply, and the soil has degraded. The reduction of soil organic matter is the main sign of its degradation. Soil tillage will destroy the structure of soil aggregates, so that soil organic matter will b...

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Problems solved by technology

[0004] Generally speaking, humid tropical areas are characterized by high temperature, high sedimentation, and poor minerals, so their or