A method for ecological management and efficiency-enhancing utilization of water-saving and fertilizer-controlling in severe saline-alkali land
A technology for severe saline-alkali land and ecological management, applied in fertilization methods, applications, fertilization devices, etc., can solve problems such as inefficient utilization of water and fertilizer, and achieve the effect of improving utilization efficiency and saving freshwater resources
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Embodiment 1
[0032] The Hetao irrigation area in Inner Mongolia is a typical area where soil salinization develops in the arid area of my country. The technical test site of the present invention is located in Chengni Village, Sandaoqiao Town, Hangjinhou Banner, Bayannaoer City, Inner Mongolia, which is a typical representative of saline-alkali land in the Hetao irrigation area. The average salt content of the 0-20cm soil on the surface of the test ground is 8.7g / kg, the average organic matter content is 8.9g / kg, the total nitrogen is 0.72g / kg, the alkaline nitrogen is 69.65mg / kg, the available phosphorus is 14.76mg / kg, and the available potassium 169.3mg / kg, cation exchange capacity CEC is 15.8cmol / kg, soil alkalinity ESP is 17.3%, 0-40cm soil is loam, 40-160cm is clay loam, 0-200cm profile soil bulk density is between 1.45-1.67g / cm 3 . From September 2017 to September 2018, with the technical solution of the present invention, a 15 mu sunflower planting experiment was carried out, a...
Embodiment 2
[0047] In the severely saline-alkali land of Hangjinhou Banner in the Hetao Irrigation Area of Inner Mongolia, the soil salinity in the 0-20cm surface layer of the test ground is 7.4-9.6g / kg, the average salt content is 8.7g / kg, the average organic matter content is 8.9g / kg, the total nitrogen is 0.72g / kg, and the alkaline nitrogen is 69.65mg / kg, available phosphorus is 14.76mg / kg, available potassium is 169.3mg / kg, cation exchange capacity CEC is 15.8cmol / kg, soil alkalinity ESP is 17.3%, 0-40cm soil is loam soil, 40-160cm is Clay loam, the soil bulk density of 0-200cm profile is between 1.45-1.67g / cm 3 . Location: Kangerlai Planting and Breeding Professional Cooperative, Hangjinhou Banner, Bayannaoer City, Inner Mongolia, which is a typical representative of saline-alkali land in the Hetao irrigation area. The test period is from December 2017 to November 2018. The test plot was a saline-alkali wasteland in the early stage. After it was reclaimed in December 2016, it was ...
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