Saline-alkali land soil conditioner and preparation method thereof
A soil conditioner, a technology for saline-alkali land, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., and can solve problems such as unsatisfactory effects, limited use time, and narrow application scope.
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[0024] Another object of the present invention is to provide a kind of preparation method of saline-alkali land soil conditioner, it may further comprise the steps:
[0025] (1) Raw material preparation: Weigh the above-mentioned raw materials according to the mass percentage for later use;
[0026] (2) Heating: Take part of the water in step (1) and add it to the reactor, and heat the reactor to make the water temperature reach 50-60°C;
[0027] (3) Dissolution: Add the fatty alcohol polyoxyethylene ether in step (1) into the reaction kettle and fully dissolve it;
[0028] (4) Mixing: Add the polymaleic acid acrylic acid copolymer, polyacrylic acid sodium salt and citric acid in the step (1) into the reaction kettle in order, and stir to fully dissolve them;
[0029] (5) Add water: Add the remaining water in step (2) into the reaction kettle and mix it evenly;
[0030] (6) Cooling: Cool the mixed solution in the reactor to 20°C;
[0031] (7) Inspection of canning: Sampling...
Embodiment 1
[0033] The experimental site is the newly reclaimed saline-alkali land in Hami, Xinjiang. The crop is cotton, and drip irrigation is used to press salt. The test site is three pieces of saline-alkali land with an area of 1 mu, and 20 kg of saline-alkali soil amendment is applied to 1 mu of saline-alkali land; The test method is that the saline-alkali land soil improver of the present invention will be mixed with water for 5 times in different treatments, and added to the fertilizer drip tank respectively, then the valve is opened, and the dripping water is evenly dripped into the test field, and the water is dripped continuously for 12 hours. Soil augers were used to take soil at a depth of 30 cm. Soil samples were taken before drip application and after one week of water cutoff, and sent to the laboratory for indoor salt analysis. The soil test results are shown in Table 1.
[0034] As can be seen from the analysis of soil test results, the desalination rate of processing 1...
Embodiment 2
[0039] The test site is the saline-alkali land of an agricultural science institute in southern Xinjiang. The previous crop in the saline-alkali land was cotton, but due to the heavy salinity, no seedlings appeared year after year, and the surface soil was efflorescent. Three treatments were set up in the experiment, each with an area of 134m 2 , a total of 402 m 2 . Get soil assay before spraying, set concentration and consumption of the present invention according to assay result. Treat 1 mu with 20 kg of saline-alkali soil improver; treat 2 mu with 10 kg of saline-alkali soil improver; treat 3 as a control and apply water. The test method is to first build ridges respectively in three test fields so that the furrow irrigation water does not flow out, and then the present invention is placed in a knapsack sprayer and mixed with water 5 times and shaken evenly, and artificially sprayed into the test places of treatment 1 and treatment 2 evenly, spraying Immediately fill ...
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