Salinity control, alkali reduction and soil improvement mode of coastal saline-alkali soil based on advantage combination of controlled release fertilizer, plant immunity resistance inducer and organic fertilizer
An immune inducer and organic fertilizer technology, applied in the direction of organic fertilizers, fertilizer mixtures, nitrogen fertilizers, etc., can solve the problems of crop resistance improvement, fertilizers cannot meet nutrient requirements, functional substances are not kept alive, etc., to improve crop resistance Effects of reversibility, promotion of sustainable agricultural development, and loss reduction
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[0038] In order to realize the organic combination of plant immunity inducer and controlled release fertilizer, a preparation method of plant immunity inducer type controlled release fertilizer is provided in one embodiment of the present invention, comprising the following steps:
[0039](1) take the plant immune inducer as the core material, and the plant immune inducer is selected from one or more of betaine, brassinolide, humic acid and DA-6; the core material is dissolved in Prepare a uniform solution with water (the concentration of the core material in the uniform solution is 100-400g / L); then add it to the wall material solution, and the weight ratio of the core material to the wall material solution is 1: (2-5); then add Negatively charged colloid, the weight ratio of negatively charged colloid and positively charged wall material solution is 1.5:1; obtain emulsion; under vacuum conditions, adjust the pH value of the emulsion to 4.0-6.5, and precipitate microcapsules ...
Embodiment 1
[0058] Weigh 20 kg of urea and place it in the drum, turn on the switch to preheat the core until the temperature is constant at 80°C. Take by weighing plant immune inducer betaine 400g, be dissolved in water and make uniform solution, add the mixed solution of shellac, gelatin, water and β-cyclodextrin of 1200g (in the mixed solution, β-cyclodextrin and shellac -The weight ratio of gelatin-water mixture is 1:2.6, in the shellac-gelatin-water mixture, the weight ratio of shellac, gelatin and water is 0.6:0.6:12); Then add 1800g negatively charged colloid Carrageenan to obtain an emulsion; under vacuum conditions, adjust the pH of the emulsion to 4.0-6.5 to precipitate microcapsules, then adjust the pH of the emulsion to 6.0-7.0, add 18g of curing agent diglycidyl phenyl ether, and solidify After the microcapsules are post-treated, the microcapsules are obtained and mixed with urea evenly.
[0059] Weigh 39.2g of paraffin wax, 0.4g of hydroxyethylidene diphosphonic acid, and 0...
Embodiment 2
[0064] Weigh 20 kg of diammonium phosphate and place it in the drum, turn on the switch to preheat the core until the temperature is constant at 80°C. Weigh 400g of plant immune inducer humic acid, dissolve it in water to obtain a uniform solution, add 1200g of ε-polylysine-vitamin E succinate amide complex solution, and then add 1800g of negatively charged colloidal gum arabic , to obtain an emulsion; under vacuum conditions, adjust the pH value of the emulsion to 4.0-6.5 to precipitate microcapsules, then adjust the pH value of the emulsion to 6.0-7.0, add 18g of curing agent laccase, and solidify the microcapsules. Processed to obtain microcapsules and mixed with urea evenly.
[0065] Weigh 39.2g of paraffin, 0.4g of hydroxyethylidene diphosphonic acid, and 0.4g of aminotrimethylenephosphonic acid, and place them in a heating kettle to melt at a constant temperature to 85°C to make a surface modifier; weigh 2000g of sulfur, and place them in a heating kettle The medium mel...
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