Cow manure integrated treatment and utilization method based on vermicomposting and vegetable planting

Abstract

The invention discloses an integrated cow dung treatment and utilization method based on earthworm composting and vegetable cultivation. The method comprises the following steps: planning vegetable cultivation fields according to the characters that earthworms like moisture and fear ponding, selecting vegetable varieties, and sowing or carrying out field planting; inoculating eisenia fetida to fermented cow dung, maintaining the moisture content of the cow dung and the environment temperature, and carrying out pre-culturing, so as to obtain an earthworm inoculating unit mixed with earthworm cast, earthworms and earthworm cocoons; setting fresh cow dung piles between the lines of vegetables after the field planting or germination of the vegetables, inoculating the pre-prepared earthworm inoculating unit, and carrying out compost treatment; and after the vegetables are mature, picking the vegetables, collecting the earthworms, and applying residual earthworm cast organic fertilizer into soil by virtue of plowing. According to the method, three traditional relevant but independent agronomic measures including earthworm composting, vegetable cultivation and earthworm cast utilization are organically integrated into one system, so that the in-situ treatment and in-situ utilization of the cow dung are realized, and the cost investment on traditional cow dung collection, earthworm treatment and farmland utilization is substantially decreased.

Description

technical field [0001] The invention relates to the field of resource utilization of livestock and poultry manure, in particular to a cow manure integrated treatment and utilization method based on vermicomposting and vegetable planting. Background technique [0002] In recent years, with the rapid development of the scale and intensification of the cattle industry, the environmental pollution caused by the centralized discharge of manure from cattle farms has become increasingly prominent. According to statistics, the number of cattle raised in my country has already exceeded 100 million. According to the calculation of the daily feces and urine output of each dairy cow is about 58.93kg, and the daily feces and urine output of each beef cattle is about 24.32kg, the amount of cow dung produced in my country is as high as 772 million tons (wet weight), and this A data is still growing. Cow dung is widely distributed in various agricultural and animal husbandry areas across th...

AI Technical Summary

Problems solved by technology

[0005] At present, traditional vermicomposting in my country mostly uses fixed cow dung piles for biological treatment and transformation of earthworms in special sites. This requires occupying a certain area of ​​land and collecting cow dung and other livestock and poultry manure from surrounding areas as raw materials. The vermicompost organic fertilizer produced is packaged and transported again for farmland application, which increases the cost of vermicomposting to a certain extent

At the same time, traditional vermicomposting usually recommends that fresh cow dung should be pretreated before using earthworms for biotransformation. This is because the high moisture content of fresh cow dung and the possible presence of harmful substances such as ammonia can easily lead to the death of inoculated earthworms.

In addition, traditional composting can not give full play to the role of earthworms in maintaining and improving soil fertility due to the fact that earthworms are restricted to move in a fixed cow dung pile

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