Water-saving farmland irrigation method

Abstract

The invention discloses a water-saving farmland irrigation method. Longitudinal water channels are excavated at intervals along the crop ridge direction of the whole farmland, transverse ditches are excavated at intervals along the direction perpendicular to crop ridges, the longitudinal water channels and the transverse ditches are communicated, and the longitudinal water channels are communicated with a water source. During seeding and seedling growth, underground soil caves are excavated among the transverse ditches. When irrigation is needed, water flows into the longitudinal water channels, enters the transverse ditches from the longitudinal water channels, and enters the soil caves until all the soil caves are filled with water. By the method, one irrigation uses 150 cubic meters / mu of water, compared with traditional broad irrigation, water is saved by 75%, and compared with spray irrigation, water is saved by 45%.

Description

technical field [0001] The invention relates to farmland irrigation technology. Background technique [0002] In agricultural planting technology, irrigation of farmland in dry weather can ensure a good harvest of crops. As the climate changes, the drought tends to become more and more serious, and the amount of groundwater available is getting less and less, resulting in ground subsidence and deterioration of the ecological environment. Under normal weather conditions, agricultural water consumption accounts for 60% of the total water consumption. Therefore, farmland water-saving irrigation technology is a problem that people need to solve urgently. However, most of the current irrigation methods cannot meet the requirements. [0003] In the past, most of the agricultural production was shallow plowing and shallow harrowing, only plowing at a depth of 15-20cm. The hard layer below 20cm absorbs little natural rainfall, so the water cannot penetrate and cause waterlogging;...

AI Technical Summary

Problems solved by technology

Most of the underground pipe materials are PPR plastic pipes, which are generally not prone to problems during the watering process. However, when the irrigation water flow is stopped and the return flow is stopped, the reverse pressure will easily cause the PPR pipes to collapse and be crushed. There are pipe valves exposed to the ground everywhere in the field, which is not conducive to the realization of farming measures

[0007] With the development of rural land in the direction of medium-sized farm intensification and the requirements of water conservation and environmental protection, the above irrigation methods can no longer meet the requirements of the times, and new irrigation methods and technologies that meet the requirements of ecological protection are urgently needed

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