Method for keeping soil moisture
A technology of soil moisture and water level, which is applied in the field of soil nutrition, can solve problems such as time-consuming, labor-intensive, time-consuming, and affect soil nutrients, and achieve the effect of low cost and simple and easy-to-understand operation
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Embodiment 1
[0042] 1) The test was carried out at the Drainage and Irrigation Test Station of Hubei Sihu Engineering Administration Bureau. The terrain is flat, the soil is fertile, and the soil quality is medium-loam clay. The mass fractions of nitrogen, phosphorus, and potassium in the plow layer are 2.5, 1.5, and 15 mg / kg, respectively. The multi-year average temperature is 16.5°C, the rainfall is 1122.0mm, the water surface evaporation is 977.4mm, the sunshine hours are 1552.0h, and the frost-free period is about 280d. . The crop is cotton.
[0043] Such as figure 2 As shown, the Daejeon test field covers an area of 3800m 2 , divided into 5 plots for experiment, figure 1 It is the floor plan of the community, in which the buried pipe is 1m deep, the drainage spacing is 8m, and the impermeable layer is 1.8m deep. There is an irrigation canal to the east of the E area, and the E area is used as a buffer zone to reduce the impact of the irrigation canal on the groundwater level of...
Embodiment 2
[0059] 1) The test site is located at Jiangxi Provincial Irrigation Test Center Station. Jiangxi Provincial Irrigation Test Center Station covers an area of 68.88 mu and is located in Gaotian Village, Xiangtang Town, Nanchang County. It is 30 kilometers away from Nanchang city center and 10 kilometers away from Nanchang County. There are 46,000 square meters of experimental research bases in the station, including paddy fields, dry farming, fruit trees, water quality and environment, aquatic water consumption, ecological ditches, ponds and wetlands and other test areas. The test area is located in the original irrigation area of Ganfu Plain with a longitude of 116°00′, a latitude of 28°26′, and an average altitude of 22m. The climate is mild and the rainfall is abundant. subtropical humid monsoon climate. The test was carried out in the standard test pit in the dry farming area, and 6 bottom test pits were selected to carry out the controlled drainage and free drainage co...
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