Low position irrigation method for cotton planted in southern areas

Abstract

The present invention relates to a low position irrigation method for cotton planted in southern areas, belonging to the field of crop cultivation. The low position 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, and in particular, the invention relates to a low-level irrigation method for southern 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 in H...

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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

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