A method for cultivating earthworms using pre-decomposed straw and its application
An earthworm and decomposed technology, applied in the application, food processing, animal husbandry and other directions, can solve the problems of the comprehensive utilization of straw, which is difficult to obtain good income, the energy conversion rate is low, and the cost of power generation equipment is high, and it is conducive to direct absorption and utilization. and transformation, the effect of improving the yield of earthworms
Active Publication Date: 2022-08-02
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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Problems solved by technology
When straw is used as silage, the low digestibility of cellulose in its technology is difficult to solve
Straw is used as biomass raw material to produce ethanol, straw gas, biogas, power generation and other energy uses. The tar in straw gasification and the low energy conversion rate of ethanol production (only about 18%) and the high cost of power generation equipment make straw Comprehensive utilization is difficult to obtain good returns
Method used
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Embodiment 1
[0041] Embodiment 1 A kind of method of utilizing straw to cultivate earthworms
[0042] The experiment was carried out at the Taishizhuang Village Test Base of Taishitun Town, Miyun District (40°33.667-40°30.145 north latitude, 117°03.553-117°08.833 east longitude). It belongs to the temperate semi-arid region of the monsoon zone, and the continental monsoon features are remarkable.
[0043] Earthworms are self-cultivating.
[0044] Choose a plot with flat terrain, convenient water source and convenient transportation in the leeward area, and build a 1m×40m×0.3m pure cow dung worm bed. The wormbed was kept at 50-60% moisture content and temperature at 15-25°C; a small amount of earthworms (Eisenia fetida) were sprinkled. After a month and a half were harvested as earthworm species.
[0045] Also in the land with flat leeward, convenient water source and convenient transportation, mix the crushed straw (5-10cm), urea, decomposing bacterial agent and water in a ratio of 200:...
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The invention relates to a method for cultivating earthworms by utilizing pre-decomposed straw and its application. The method decomposes the corn stalks to the middle maturity stage, and then spreads the earthworm seeds after building the bed of the decomposed corn stalks, controls the moisture content and temperature, and can significantly improve the efficiency of cultivating earthworms with the stalks, and the annual earthworm yield per mu reaches 0.89-0.91t. The content of total nitrogen, organic matter, total phosphorus and microbial nitrogen in the vermicompost obtained by cultivating earthworms by the method of the present invention is increased by about 30-79% compared with the vermicompost cultivated with cow dung, and the vermicompost can be used as an organic fertilizer for agricultural production and soil improvement. The method of the invention is easy to operate, convenient for popularization and application, can not only recycle and utilize straw to turn waste into treasure, but also replaces the method of cultivating earthworms with cow dung, and solves the problems of high cost and environmental pollution brought about by cultivating earthworms with cow dung. It is of great significance to maintain the stability of organic matter and the integrity of the ecological chain in the water conservation area of aquaculture.
Description
technical field [0001] The invention relates to the technical field of earthworm culture and land protection and conservation, in particular to a method for cultivating earthworms by using pre-decomposed straws and the application of earthworm manure obtained by applying the method in agricultural production and land environment improvement. Background technique [0002] Earthworms live in the soil, they burrow in and out of the soil, take the soil as food, and pass through its digestive tract and then excrete from the anus. kind. The soil excreted by earthworms not only changes from rough and dry to fine and moist, but also adds many chemicals to turn the poor soil into fertile soil. Earthworms also often turn the fine soil on top and the coarse soil on the bottom, and turn the soil up and down to loosen the soil, which is equivalent to ploughing the ground, so that the crops can fully absorb water and nutrients in the loose soil, so as to thrive. [0003] After several r...
Claims
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IPC IPC(8): A01K67/033A23K10/12A23K10/37A23K20/105A23K50/00
CPCA01K67/0332A23K50/00A23K10/12A23K10/37A23K20/105Y02P60/87
Inventor 胡艳霞郑瑞伦侯新村杨志臣
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES