Southern Xinjiang saline-alkali soil seedling emergence and protection method through multiple times of micro-dripping
A technology of dripping seedling emergence and saline-alkali land, which is applied in the agricultural field, can solve the problems of high salt content in the soil, difficulty in ensuring seedling emergence, and full seedlings, and achieve the effects of inhibiting soil return to salt, preventing soil return to salt, and facilitating seedling growth
Active Publication Date: 2022-05-10
VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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Problems solved by technology
However, due to the lack of snowfall in southern Xinjiang in winter and the high salt content of the plow layer soil in cotton fields, it is difficult to ensure the emergence of seedlings and full seedlings by "dry sowing and wet out" with one drop of water.
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Embodiment 1
[0023] This experiment will be carried out in the 19th Company of the 51st Regiment of the Third Division of Xinjiang in 2021, using the cotton variety Xinluzhong 87 as the test material. The test area is 300 mu. The previous crop in the test site is cotton, with medium fertility, and the soil is sticky. The salt content of the 0-30cm soil layer is 0.31%, the soil pH value is 8.36, and the groundwater depth is about 206m.
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The invention discloses a method for emergence and protection of seedlings in saline-alkali soil in southern Xinjiang through multiple times of micro-dripping. According to the method, after the cotton is subjected to film mulching, punching and sowing, four times of micro-dripping is adopted, and monopotassium phosphate is dripped along with water during third-time dripping, so that the cotton seeds are located in a soil environment with sufficient moisture and low salt while the ground temperature is rapidly increased, and seedling emergence and seedling formation are facilitated. After the technology is adopted, the water consumption per mu is about 60 m < 3 >, the emergence rate of 90% or above can be achieved, and full seedlings and strong seedlings are achieved while water is saved.
Description
technical field [0001] The invention relates to a method for preserving seedlings by multiple micro-drops of water in saline-alkali land in southern Xinjiang, belonging to the field of agricultural technology. Background technique [0002] Most of the cotton fields in Xinjiang are saline-alkali land, and there is a lack of fresh water resources, especially seasonal water shortages. In order to save water, the saline-alkali land in northern Xinjiang mostly adopts the "dry sowing and wet out" technology of cotton with a large amount of water dripping after sowing on the film, and the dripping amount per mu is 50-60m 3 , can achieve more than 85% emergence rate. Compared with northern Xinjiang, the precipitation in southern Xinjiang is less, and the degree of salinity is more serious. In winter and spring, flood irrigation and pressure salt are used to create moisture to ensure seedling emergence. Generally, the amount of water before sowing in mildly saline-alkali land is 150...
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IPC IPC(8): A01G22/50A01G25/00A01B79/02
CPCA01G22/50A01G25/00A01B79/02Y02A40/22
Inventor 代建龙陈兵董合忠崔正鹏李维江张栋海张艳军张冬梅徐士振崔建强李振怀战丽杰吉光鹏孙琳王新
Owner VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI