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Method for applying carbon dioxide by use of farmland micro-irrigation system

A carbon dioxide and micro-irrigation technology, applied in fertilization methods, horticultural methods, botanical equipment and methods, etc., can solve problems such as difficult to achieve plant carbon dioxide concentration, and achieve the effect of uniform application, low price, and easy control of dosage

Inactive Publication Date: 2011-08-03
XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, although carbon dioxide gas emissions have continued to increase, the concentration of carbon dioxide in the atmosphere has only increased to about 350ppm, and it is difficult to achieve the most suitable concentration of carbon dioxide for plant growth.

Method used

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  • Method for applying carbon dioxide by use of farmland micro-irrigation system
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: Referring to the accompanying drawings, it is a schematic layout diagram of a dispensing system according to an embodiment of the present invention.

[0017] The specific implementation target crop is cotton production: the target yield (seed cotton) is 300kg / mu; the field pipe network mode of drip irrigation is 5 main pipes + 1 branch pipe + 2 capillary pipes, and the planting mode: row spacing×plant spacing=(30+60)cm×9cm; Manage two lines.

[0018] Carbon dioxide gas application: During the peak period of cotton growth, that is, during the bud stage to boll stage of cotton growth, when the micro-irrigation system is not used for irrigation, the container containing carbon dioxide gas is connected to the branch pipe 2 through a pipeline, and the application range The two ends of the internal branch pipe 2 are blocked. In the case of sunny days in Xinjiang, the valve 4 is opened at 12:00 am Beijing time (10:00 local time in Xinjiang) for release, and it en...

Embodiment 2

[0020] Embodiment 2: Compared with Embodiment 1, the difference of this embodiment is that the start time is 12:30 am Beijing time every day and ends at 15:00 pm. The pressure is controlled at 4-7kPa, and the amount of spraying per mu is controlled at 5 liters / minute in the first 20 minutes and 1.5 liters / minute in the next 130 minutes.

Embodiment 3

[0021] Embodiment 3: Compared with Embodiment 1, the difference of this embodiment is that the start time is 12 am Beijing time every day and ends at 14:30 pm. The pressure is controlled at 4-7kPa, and the amount of spraying per mu is controlled at 5 liters / minute in the first 40 minutes and 1.2 liters / minute in the last 110 minutes.

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Abstract

The invention discloses a fertilizer applying technology which specifically applies the carbon dioxide gas fertilizer on the field crops by use of a micro-irrigation system of the current water-waving agriculture. The micro-irrigation system at least comprises a branch pipe and a capillary pipe of a pipeline system; a container filled with the carbon dioxide gas is connected to the joint of the branch pipe, and a valve of the container is opened so that the carbon dioxide gas enters the capillary pipe through the branch pipe and is discharged from a water outlet of the capillary pipe and applied to a plant canopy layer, wherein the daily applying time is 2-3 hours, and the daily applying quantity is 300-400 liters per mu. Tests indicate that the crop yield can be increased by 8-13% by applying the carbon dioxide gas fertilizer on crops such as carbon dioxide gas to the drip irrigation cotton, sauce tomato, wheat and the like, and the mature period is 3-5 days earlier. According to the invention, the micro-irrigation system is used as a conveying channel to apply the carbon dioxide gas to the field, and the carbon dioxide gas is used as a gas source; and the method is simple and feasible, easy to control dosage, safe, reliable and chip, and realizes uniform application.

Description

technical field [0001] The invention relates to a fertilizer application technology, specifically a method for applying carbon dioxide fertilizer in a field, especially a method for applying a carbon dioxide gas fertilizer to a field by using a micro-irrigation system in water-saving agriculture. Background technique [0002] 45% of the dry matter in plants is carbon, and its source is carbon dioxide in the air. It takes 1.6g of carbon dioxide to synthesize 1g of dry matter. The most suitable carbon dioxide concentration range for plant growth and photosynthesis is about 1000ppm. When the concentration is not higher than the saturation concentration, the photosynthesis rate is positively correlated with the carbon dioxide concentration. [0003] Although the emission of carbon dioxide gas continues to increase in recent years, the concentration of carbon dioxide in the atmosphere has only increased to about 350ppm, and it is difficult to reach the optimum concentration of ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/02A01C21/00
Inventor 尹飞虎陈云高志建李晓兰谢宗铭刘瑜何帅刘长勇
Owner XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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