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Method for improving yield and quality of greenhouse vegetable and using device

A vegetable and yield technology, applied in the field of improving the yield and quality of greenhouse vegetables and the equipment used, can solve the problems of excessive accumulation of nitrate and high fertilization, and achieve the goal of improving vegetable quality, reducing nitrate content, and increasing the content of beneficial antioxidant substances Effect

Inactive Publication Date: 2008-09-10
ZHEJIANG UNIV
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Problems solved by technology

However, due to the high amount of fertilizer applied to greenhouse vegetables, excessive accumulation of nitrate in the body is very common

Method used

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  • Method for improving yield and quality of greenhouse vegetable and using device

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Embodiment Construction

[0019] figure 1 A NOx gas acquisition device is given, including a heating device, a reaction vessel, a connecting pipe and a gas collection bag 5 . The electric furnace 1 can be selected as the heating device, the 500mL Erlenmeyer flask 2 can be selected as the reaction vessel, and the rubber tube 3 can be selected as the connecting tube. A rubber stopper 22 with a glass tube 21 is set at the bottleneck of the triangular flask 2 (the outer surface of the glass tube 21 is tightly connected with the rubber stopper 2), and the rubber stopper 22 is tightly connected with the bottleneck of the triangular flask 2.

[0020] The gas collection bag 5 can be made of a swimming buoy or an automobile tire inner tube, etc. The gas collection bag 5 is provided with an inlet 51 and a gas extraction port 52, and the gas extraction port 52 is in a closed state, that is, without external tools, the gas collection bag 5 The gas can not escape from the gas extraction port 52.

[0021] Erlenmey...

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PUM

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Abstract

The invention discloses a method for increasing the yield and quality of greenhouse vegetables. Nitric Oxide gas is fertilized in a greenhouse once a day from three to four weeks before the harvest time of the greenhouse vegetables till the day before the harvest time according to routine estimation, the amount of fertilizer applied each time is 0.5 to 2 mL / m<3>. The invention also provides an acquisition device of NOx gas for realizing the method, which comprises a gas collection bag which is provided with an inlet and a gas extracting port. A reaction vessel is arranged on a heating device, one end of a connecting tube is connected with the outlet of the reaction vessel in a sealing way and the other end is connected with the inlet of the gas collection bag in a sealing way, and the connecting tube is provided with a regulator. The method of the invention can not only reduce the nitrate content in the vegetables but also increase the yield of the vegetables.

Description

technical field [0001] The invention relates to a method for improving the output and quality of vegetables in greenhouses by applying a small amount of nitric oxide gas externally and the device used. Background technique [0002] In addition to providing various nutrients such as proteins, carbohydrates and minerals needed by the human body, vegetables also contain a variety of natural antioxidant substances, such as ascorbic acid and total flavonoids, which are highly regarded by the world's nutrition and medical circles. Beneficial substances of concern to the world. With the development of the economy and the improvement of living standards, the public's awareness of the demand for green vegetables has begun to increase. Therefore, a high-quality and high-yield vegetable production model is very urgent. At present, vegetable greenhouse production has been widely carried out all over the world; especially in China, in the past few decades, vegetable greenhouse producti...

Claims

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Application Information

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IPC IPC(8): A01C21/00A01G7/06C01B21/24C01B21/36
Inventor 金崇伟章永松林咸永
Owner ZHEJIANG UNIV
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