Seleniferous special fertilizer for Pistacia vera and preparation method therefor
A pistachio and special fertilizer technology, applied in the application, nitrogen fertilizer, potash fertilizer and other directions, can solve the problems such as the inability to meet the needs of pistachio growth, and achieve the effect of significantly increasing production, reasonable nutrient distribution and improving commercial value.
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Embodiment 1
[0033] A special fertilizer for pistachios containing selenium, which is prepared by mixing water-retaining agent and inorganic fertilizer
[0034] The raw material components and parts by weight are as follows:
[0035]
[0036] A preparation method of a special fertilizer for selenium-containing pistachios, comprising the following steps:
[0037] (1) The urea is melted at a high temperature to 125-135°C and enters the buffer tank;
[0038] (2) after measuring the monoammonium phosphate, potassium sulfate, borax, EDTA chelated selenium, humic acid, and concrete fertilizer respectively, put into the stirring tank to mix according to the above-mentioned proportioning, and the uniformly mixed raw materials are sent to the crusher by the elevator to be crushed Then it is sent to the drum granulator, a small amount of steam enters the granulation drum through the steam nozzle, and the urea melt is sprayed into the granulation drum at the same time, and the material is heated ...
Embodiment 2
[0042] Embodiment 2 A special fertilizer for selenium-containing pistachios,
[0043] The raw material components and parts by weight are as follows:
[0044]
[0045]
[0046] A preparation method of a special fertilizer for selenium-containing pistachios, comprising the following steps:
[0047] (1) The urea is melted at a high temperature to 120-135°C and enters the buffer tank;
[0048] (2) After measuring the monoammonium phosphate, potassium sulfate, borax, EDTA chelated selenium, humic acid and concrete fertilizer respectively, put them into the mixing tank according to the proportion and mix them. In the drum granulator, a small amount of steam enters the granulating drum through the steam nozzle, and at the same time, the urea melt is sprayed into the granulating drum, and the material is heated to 40-48 °C and granulated by the granulating drum;
[0049] (3) Send the pelletized material into the drying cylinder, dry it, and then cool and sieve the dried mater...
Embodiment 3
[0053] A special fertilizer for pistachios containing selenium,
[0054] The raw material components and parts by weight are as follows:
[0055]
[0056] A preparation method of a special fertilizer for selenium-containing pistachios, comprising the following steps:
[0057] (1) The urea is melted at a high temperature to 120-135°C and enters the buffer tank;
[0058](2) After measuring the monoammonium phosphate, potassium sulfate, borax, EDTA chelated selenium, humic acid and concrete fertilizer respectively, put them into the mixing tank according to the proportion and mix them. In the drum granulator, a small amount of steam enters the granulation drum through the steam nozzle, and at the same time, the urea melt is sprayed into the granulation drum, and the material is heated to 35-45 °C and granulated by the granulation drum;
[0059] (3) Send the pelletized material into the drying cylinder, dry it with hot air, and then cool and sieve the dried material before pa...
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