Organic selenium-rich fertilizer
A fertilizer and selenium-enriched technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of poor safety and economy, lack of selenium supplementation measures, low selenium effectiveness, etc., to achieve a good ecological environment, conducive to absorption, Effects of increasing selenium levels
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[0018] (1) Put 50kg of pig manure, 200kg of rapeseed cake, 50kg of leftover vegetables and slag into the fermentation tank, add 150kg of water, cover and ferment for 45 days until a slight odor appears.
[0019] (2), add 500kg of water, continue to ferment for 20 days, until the solid content in the batching dissolves;
[0020] (3), get fermented liquid 200 meshes and filter, obtain selenium-enriched fertilizer mother liquor;
[0021] (4), add sodium selenite 4kg by 100kg mother liquor, dissolve and stir evenly, without precipitation, get selenium-enriched fertilizer after the reaction is complete and can be filled.
[0022] The produced organic selenium-enriched fertilizer has high safety, is convenient to use and is easy to implement.
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