Low position irrigation method for cotton planted in southern areas

A cotton, low-level technology, applied in the field of low-level sprinkler irrigation for Nanfan cotton

Inactive Publication Date: 2012-06-06
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The frequent irrigation and the hard soil structure of the southern cotton field and the poor flatness of the cotton field increase the labor intensity of the irrigation operation and increase the irrigation cost
In addition, labor costs in Hainan’s field labor are 2 to 3 times the price of mainland cotton field labor. The use of general irrigation methods (canal irrigation) requires more labor, which is also an important factor in the sharp increase in the cost of southern breeding. Failure to timely encounter the phenomenon that the growth of Nanfan cotton is hindered

Method used

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  • Low position irrigation method for cotton planted in southern areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Pipe (belt) network laying stage

[0025] After ridging and covering, before drilling and sowing, use 75mm PVC branch pipes to connect to the water source. The direction of the PVC pipes is perpendicular to the cotton row. The parallel distance between adjacent PVC branch pipes is generally 30 to 70 meters. According to the water pressure, The topography and the length of the cotton row in the field can be adjusted flexibly, such as increasing the distance with high water pressure, and appropriately increasing the length of the cotton row in the field. The PVC pipe is connected by a segmented tee, the tee diameter specification left thin end and right thick end are closely connected with the 75mm branch pipe, and the other joint is a soft rubber hose with a diameter of 30mm. There are prefabricated water spray holes with a diameter of 0.1mm on the upper and lower planes of the soft rubber hose. There are 3 to 5 water spray holes in each row, and the distance between ...

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Abstract

The present invention relates to a low position sprinkling irrigation method for cotton planted in southern areas, belonging to the field of crop cultivation. The low position sprinkling irrigation method for cotton planted in southern areas comprises the following steps:1) paving a pipe network, all polyvinyl chloride (PVC) pipes are perpendicular to cotton rows, the PVC pipes are horizontally connected by tee joints, one end of each of the tee joints is connected with a hose, water spray holes are previously arranged on both the upper and the lower planes of the hose, primary switches are arranged at the water inlets of all rows of PVC pipes, secondary switches are arranged at the connecting part of all hoses with the PVC pipes, and the hoses are arranged between every two cotton ridges in parallel with the cotton rows; 2) irrigating, 5 to 7 secondary switches are first opened, and then, the primary switches are opened. Irrigation water and labours are reduced, and irrigation efficiency and quality are improved. The method provides technical base for the safe and effective southern planting.

Description

technical field [0001] The invention relates to the field of crop cultivation, in particular, the invention relates to a low-level sprinkler irrigation method for Nanfan cotton. Background technique [0002] The main period of cotton propagation in the south is the dry season. Irrigation is not only the basic guarantee for the growth and development of cotton, but also the main means of growth period regulation. The conventional irrigation methods for southern cotton are often furrow irrigation or flood irrigation, which not only wastes water resources, but also because the amount of irrigation water is difficult to control and uneven, resulting in excessive or insufficient growth of cotton, and irregularities among individuals. Rice is the largest agricultural crop in Hainan, and is highly valued by the government and farmers. Rice is often planted in areas with good water conservancy conditions, while cotton is not a local agricultural crop in Hainan. Most cotton planting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G25/02
CPCY02A40/22
Inventor 张西岭王坤波张海棠黎绍惠王宝连
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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