Melt granulation humic acid functional fertilizer special for corns and preparing method thereof
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A special fertilizer for corn, melt granulation technology, applied in the direction of application, fertilizer form, fertilization device, etc., to achieve the effect of increasing yield, low price, and wide sources
Active Publication Date: 2012-06-20
STANLEY AGRI GRP CO LTD
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For corn production and cultivation, ordinary fertilizers have a short period of effectiveness, and the release of nutrients in fertilizers, especially nitrogen nutrients, is inconsistent with the demand for nutrients in different growth stages of corn. Due to the concentrated release of nutrients or the uncoordinated release ratio of nutrients, fertilizer utilization The rate is low, causing nutrient stress to the corn growth environment. When the corn does not need a lot of nutrients, it releases a lot of nutrients into the soil, but when the corn needs a lot of nutrients, there is not enough nutrient supply, so it has a nutrient stress effect on the growth of corn. From seriously affecting the quality of corn kernels and polluting the agricultural ecological environment
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Embodiment 1
[0076] Melt granulation humic acid functional corn special fertilizer, nitrogen phosphorus potassium (N-P 2 o 5 -K 2 O) contents were 20%, 9%, and 11%, respectively, all of which were percentages by mass.
[0077] (1) Melt 390 parts of urea at a high temperature to about 140°C, enter the buffer tank, pressurize it through the delivery pump, and pump it into the top mixer;
[0078] (2) 190 parts of monoammonium phosphate, 210 parts of potassium sulfate, 100 parts of humic acid, 50 parts of calcium magnesium phosphate fertilizer, 10 parts of EDTA chelated zinc, 10 parts of EDTA chelated iron, 10 parts of EDTA chelated boron, ammonium molybdate After 5 parts and 25 parts of additives are measured, they are sent to the mixer and mixed evenly. After the mixed raw materials are crushed and sieved, they are sent to the mixing heater to be heated to about 90°C, and sent to the top of the tower with a bucket elevator. warehouse;
[0079] (3) The hot mixture in the silo at the top o...
Embodiment 2
[0081] Melt granulation humic acid functional corn special fertilizer, nitrogen phosphorus potassium (N-P 2 o 5 -K 2 O) contents are 22%, 8%, 10% respectively, all are percentages by mass.
[0082] Take 440 parts of urea, 160 parts of monoammonium phosphate, 200 parts of potassium sulfate, 100 parts of humic acid, 10 parts of EDTA chelated zinc, 10 parts of EDTA chelated iron, 10 parts of EDTA chelated boron, 6 parts of ammonium molybdate and 14 parts Additives are raw materials, and the production process is the same as in Example 1.
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Abstract
The invention discloses a melt granulation humic acid functional fertilizer special for corns and a preparing method thereof. The melt granulation humic acid functional fertilizer adopts raw materials of urea, monoammonium phosphate, potassium sulfate, humic acid, calcium magnesium phosphate, ethylene diamine tetra acetic acid (EDTA) chelating zinc, EDTA chelating ferrite, EDTA chelating boron, ammonium molybdate and additives, all the raw materials are dosed according to a specified ratio, and finished products are obtained through mixing, stirring, heating, filtering, granulating, cooling, sieving, anti-caking processing and measurement packaging of the raw materials. The melt granulation humic acid functional fertilizer special for corns has the advantages of being environment-friendly, balanced in nutrition, fast in fertilizer effect, high in crop absorption rate and capable of prolonging valid period of nitrogen nutrient and improving the soil, is a novel fertilizer for agricultural sustainable development and green food production, and has important meaning for promoting development of the ecological agriculture.
Description
technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a special fertilizer for melt granulated humic acid functional corn and a preparation method thereof. Background technique [0002] Maize plants are tall and require a lot of fertilizer. Fertilization must be done reasonably to meet the nutrient needs of corn throughout the growth period. Studies have shown that to produce 100 kilograms of corn grains per mu, it is necessary to absorb 2.2-2.8 kilograms of pure nitrogen, 0.7-0.9 kilograms of phosphorus pentoxide, and 1.5-2.3 kilograms of potassium oxide. , calcium, magnesium and other medium elements, as well as iron, manganese, copper, zinc, molybdenum and other trace elements and silicon, aluminum and other auxiliary elements. Among the three macronutrients, corn has the largest demand for nitrogen, followed by potassium, and relatively less demand for phosphorus. Nitrogen application increased the plant heig...
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