Corn-coated slow-release long-acting compound fertilizer with diatomite as carrier
A technology of coated slow-release and diatomite, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of few products and few slow-release long-acting fertilizers, and achieve low price, easy popularization and use, and improved The effect of fertilizer use efficiency
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Embodiment 1
[0019] 1) First, use distilled water as the binder, put the nitrogen fertilizer and potassium fertilizer that can pass through the 80-mesh sieve in the above ratio and put them into a granulator for granulation. The basic parameters of the granulator are: the speed is 40 rpm, the temperature for 70 o C, the elevation angle is 50 0 ;
[0020] 2) Afterwards, spray about 50 ml of distilled water to moisten the surface of the granulated fertilizer so that the adhered diatomite can pass through a 100-mesh sieve;
[0021] 3) After the 10% diatomite wrapping granulation is completed, then use a high-pressure spray gun to evenly spray a small amount of polyvinyl alcohol, a coating curing material, onto the surface of the fertilizer granules;
[0022] 4) Finally, pour 3% rosin paraffin mixture (rosin: paraffin = 1:2) into the drum and keep the temperature at 70 oC , and wrap the coated fertilizer granules again after melting.
Embodiment 2
[0024] 1 Materials and methods
[0025] 1.1 Corn variety: Zhengdan 958, purchased from the market;
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