Binding agent for selenium-rich organic-inorganic compound fertilizer, and preparation method thereof
A compound fertilizer and binder technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve problems such as uneven distribution, backward technology, and difficult absorption, so as to overcome passive absorption by plants, reduce environmental risks, and ensure controllability. sexual effect
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[0019] A kind of selenium-enriched organic-inorganic compound fertilizer binding agent, it is made up of the raw material of following parts by weight (kg):
[0020] Japonica rice starch 40, selenium-enriched yeast 6, maltose 6, water 60, sodium selenite 0.003, potassium hydroxide 3, borax 0.4, tributyl phosphate 0.2.
[0021] A preparation method of a selenium-rich organic-inorganic compound fertilizer binder, comprising the following steps:
[0022] (1) Fermentation culture: Mix the japonica rice starch, selenium-enriched yeast, maltose, and water in the above parts by weight, and after culturing for 25 hours at a temperature of 31°C, divide the sodium selenite in the above parts into 5 parts on average, Add a portion of sodium selenite in 3 hours, the total incubation time is 50 hours;
[0023] (2) Cross-linking reaction: After the fermentation and cultivation, add the above-mentioned potassium hydroxide and borax to the mixture obtained above, stir and react at a temperat...
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