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Method for carbon dioxide fertilization in plastic tunnel by organic agricultural waste fermentation

An organic waste, carbon dioxide technology, applied in fertilization methods, botanical equipment and methods, agriculture, etc., can solve problems such as soil degradation in greenhouses, achieve considerable economic benefits, prevent NH3 volatilized N loss, and solve pollution effects.

Inactive Publication Date: 2005-02-23
ZHEJIANG UNIV
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for carbon dioxide fertilization of greenhouses by fermentation of agricultural organic wastes which is simple and easy to solve the environmental pollution caused by a large amount of agricultural organic wastes and prevent soil degradation in greenhouses

Method used

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Embodiment Construction

[0019] Calculated according to the volume of the greenhouse, 0.3kg of dry straw and 0.5kg of fresh pig manure are used for each cubic meter of greenhouse (the amount of poultry manure can be reduced to 0.3kg due to its low water content and high nitrogen content), so that the initial mixing of the two The C / N ratio is around 40 / 1. The straw is cut into about 10cm in length, and the straw is water-absorbed through repeated watering and plastic film covering. Then mix the straw and pig manure evenly; use pH test paper to test, adjust the pH of the matrix to about 6 with rice vinegar or dilute sulfuric acid; adjust the water content of the matrix to about 70%. Put the substrate into the fermentation device and ferment directly in the greenhouse. The fermentation temperature can reach above 50°C the next day. Increasing the ventilation of the fermentation device can reduce the temperature appropriately to keep the fermentation temperature at about 50°C. After two days of fermenta...

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Abstract

A method for applying gas-state CO2 fertilizer in plastic-film hot shed includes such steps as proportionally mixing the straw or stalk of agricultural crops with the droppings or dung of fowls or animals, fermenting in said plastic-film hot shed to release CO2 fertilizer, and periodically discharging dregs from fermentor while adding raw material into it.

Description

technical field [0001] The invention relates to a method for fertilizing carbon dioxide in greenhouses by utilizing agricultural organic waste fermentation. Background technique [0002] According to reports, by the end of 1998, the area of ​​protected gardening with vegetable cultivation as the main body had reached 867,000 hectares, ranking first in the world, an increase of 120 times compared with 1981, and the development speed in recent years is still very rapid. It is well known that the optimal CO required for photosynthesis in greenhouses and greenhouse crops 2 The concentration is usually around the CO in air 2 3-5 times the concentration (CO in the air 2 The content is about 350ul / L). And the CO in the greenhouse 2 The concentration is usually only about 250μl / L, according to our recent CO 2 The results of the concentration measurement show that the CO in the shed at 9-10 am on a sunny day 2 The concentration can be as low as about 100ul / L, in severe CO 2 st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G7/02
Inventor 章永松林咸永
Owner ZHEJIANG UNIV
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