Special controlled-release fertilizer for sulfur, resin film coated wheat and manufacturing method therefor
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A technology of controlled-release fertilizer and wheat, applied in the application, nitrogen fertilizer, potassium fertilizer and other directions, can solve problems such as poor adaptability, and achieve the effect of increasing thousand-grain weight, significant economic benefits, and reducing the number of fertilization.
Active Publication Date: 2008-05-21
KINGENTA ECOLOGICAL ENG GRP
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Problems solved by technology
Compared with ordinary fertilizers, the nutrients of these fertilizers have a certain slow-release effect, but because the coating materials are water-soluble, their nutrient release speed is mainly affected by water. Large crops have poor adaptability
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Embodiment 1
[0047] Embodiment 1: special controlled-release fertilizer for wheat, total nutrient: nitrogen, phosphorus pentoxide, potassium oxide content are respectively 24%, 10%, 13%, all are percentage by mass. The raw material components are as follows:
[0055]Preparation method: Put the above-mentioned raw materials into a blender and stir for 5-10 minutes, and mix thoroughly. Then the mixed fertilizer is sent to the metering and packaging machine for metering and packaging.
Embodiment 2
[0056] Embodiment 2: special controlled-release fertilizer for wheat, total nutrient: nitrogen, phosphorus pentoxide, potassium oxide content are respectively 20%, 10%, 20%, all are percentage by mass. The raw material components are as follows:
[0065] The preparation method is the same as in Example 1.
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Abstract
The invention relates to a special controlled release fertilizer for wheat and a preparation method thereof and belongs to the technical field of sustained release fertilizer and controlled release fertilizer. According to the rule of the fertilizer requirement of the wheat, the invention remixes 5 percent, 6 percent and 7 percent thermoplastic resin coated urea, sulfur coated urea, potassium chloride complex fertilizer, the potassium chloride, diammonium phosphate and zinc sulfate exactly to form the special controlled release fertilizer for wheat. The nutrient release rule of the controlled release fertilizer is in accordance with the nutrition absorption rule of the wheat, and the cost of the controlled release fertilizer is reduced; no more fertilization is required after one time of the fertilization of the controlled release fertilizer before the wheat is seeded, which reduces the labor intensity of the farmer and the labor cost.
Description
technical field [0001] The invention relates to a special controlled-release fertilizer for crops produced by coated sulfur and coated thermoplastic resin, in particular to a special controlled-release fertilizer for wheat and a manufacturing method thereof, belonging to the technical field of slow / controlled release fertilizers. Background technique [0002] Wheat is one of the most important food crops in the world, and more than one-third of the world's population takes wheat as their main ration. Wheat is also the most important commodity grain in the world. The annual trade volume of world wheat is about 100 million tons, more than the sum of all other grains. China is the world's largest wheat producer and wheat consumer, and is the center of world wheat production and consumption. [0003] According to the existing fertilizer varieties and fertilization techniques, my country mainly adopts the combination of base fertilizer and topdressing in wheat fertilization. In ...
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