Potassium polyphosphate slow-release fertilizer for corns, and production method of potassium polyphosphate slow-release fertilizer

A technology of potassium polyphosphate and slow-release fertilizer, applied in the direction of ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, phosphate fertilizer, etc., can solve the problems of high product cost, high price of slow-release fertilizer, low corn yield, etc. The effect of convenient transportation and use, unique preparation method and high nutrient content

Inactive Publication Date: 2017-07-25
广西东林食品化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating materials currently used for coated slow-release fertilizers are usually non-fertilizer polymers, which have low effective fertilizer content, high product costs, and high prices of non-fertilizer polymers, which eventually lead to low yields of corn and will also affect the soil. environment poses risks
At present, there are still the following problems in corn planting: First, slow-release fertilizers are not highly targeted, and the nitrogen, potassium, phosphorus an

Method used

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  • Potassium polyphosphate slow-release fertilizer for corns, and production method of potassium polyphosphate slow-release fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A potassium polyphosphate slow-release fertilizer for corn, comprising the following raw materials in parts by weight:

[0033] 55 parts of urea; 45 parts of potassium polyphosphate; 10 parts of diammonium hydrogen phosphate; 0.5 parts of magnesium sulfate; 0.4 parts of calcium nitrate; 1.5 parts of trace elements; 8 parts of bone meal; 5 parts of humic acid; 4 parts; 10 parts of slow-release agent; described trace element and weight ratio are Fe:Mn:Zn:Cu:B:Mo=3:2:3:2:2:0.8.

[0034] The preparation method of described potassium polyphosphate comprises the following steps:

[0035] ① Put yellow phosphorus in a combustion furnace and burn it at 500°C to get P 2 o 5 gas;

[0036] ②Use a blower to blow P 2 o 5 The gas is pumped into the polymerization tower, and the water is continuously poured to make P 2 o 5 The gas dissolves in water, to the P in the solution 2 o 5 The weight concentration of reaches 72%, obtains solution;

[0037] 3. in the solution obtained...

Embodiment 2

[0045] A potassium polyphosphate slow-release fertilizer for corn, comprising the following raw materials in parts by weight:

[0046] 60 parts of urea; 48 parts of potassium polyphosphate; 12 parts of diammonium hydrogen phosphate; 0.6 parts of magnesium sulfate; 0.5 parts of calcium nitrate; 1.8 parts of trace elements; 9 parts of bone meal; 7 parts of humic acid; 5 parts; 12 parts of sustained-release agent; described trace element and weight ratio are Fe:Mn:Zn:Cu:B:Mo=3:2:3:2:2:0.8.

[0047] The preparation method of described potassium polyphosphate comprises the following steps:

[0048] ① Put yellow phosphorus in a combustion furnace and burn it at 600°C to get P 2 o 5 gas;

[0049] ②Use a blower to blow P 2 o 5 The gas is pumped into the polymerization tower, and the water is continuously poured to make P 2 o 5 The gas dissolves in water, to the P in the solution 2 o 5 The weight concentration of reaches 81%, obtains solution;

[0050] 3. in the solution obt...

Embodiment 3

[0058] A potassium polyphosphate slow-release fertilizer for corn, comprising the following raw materials in parts by weight:

[0059] 65 parts of urea; 50 parts of potassium polyphosphate; 15 parts of diammonium hydrogen phosphate; 0.8 parts of magnesium sulfate; 0.6 parts of calcium nitrate; 2.0 parts of trace elements; 10 parts of bone meal; 10 parts of humic acid; 6 parts; 15 parts of sustained-release agent; said trace elements and weight ratio are Fe:Mn:Zn:Cu:B:Mo=3:2:3:2:2:0.8.

[0060] Above-mentioned potassium polyphosphate corn slow-release fertilizer, the preparation method of described potassium polyphosphate comprises the following steps:

[0061] ① Put yellow phosphorus in a combustion furnace and burn it at 700°C to get P 2 o 5 gas;

[0062] ②Use a blower to blow P 2 o 5 The gas is pumped into the polymerization tower, and the water is continuously poured to make P 2 o 5 The gas dissolves in water, to the P in the solution 2 o 5 The weight concentratio...

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Abstract

The invention relates to potassium polyphosphate slow-release fertilizer for corns, and a production method of the potassium polyphosphate slow-release fertilizer. The potassium polyphosphate slow-release fertilizer is prepared from the following raw materials in parts by weight: 55-65 parts of urea, 45-50 parts of potassium polyphosphate, 10-15 parts of diammonium hydrogen phosphate, 0.5-0.8 part of magnesium sulfate, 0.4-0.6 part of calcium nitrate, 1.5-2.0 parts of trace elements, 8-10 parts of bone meal, 5-10 parts of humic acid, 10-15 parts of rotten cow dung, 4-6 parts of derris trifoliata and 10-15 parts of a slow-release agent. The potassium polyphosphate slow-release fertilizer for the corns is prepared according to the nutrient uptake features of corn growth; the produced potassium polyphosphate slow-release fertilizer is rich and balanced in nutrition and rich in various nutrients as well as medium and trace elements, and can rapidly supplement the nutrients needed by the corns in a long-acting way. Furthermore, the nutritional ingredients in the fertilizer can be slowly released, so that the fertilizer efficiency is lasting, and the utilization rate of the fertilizer is facilitated to be increased; the potassium polyphosphate slow-release fertilizer has the effects of increasing both production and income and increasing the quality of the corns.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a potassium polyphosphate slow-release fertilizer for corn and a production method thereof, belonging to the technical field of fertilizer production. Background technique [0002] Corn (scientific name: Zea mays), also known as corn, corn, corn, cob; is an annual grass herb, an important food crop and an important source of feed. The history of corn cultivation in my country is about 470 years. At present, my country's sown area is about 300 million mu, second only to rice and wheat, ranking third among food crops, and second only to the United States in the world. Corn is planted all over China, especially in the Northeast, North and Southwest provinces. Corn is a good health product in coarse grains, and eating corn is quite beneficial to human health. According to research, every 100 grams of corn contains 106 kcal of calories, 2.9 grams of cellulose, 4.0 grams of protein, 1.2 grams of fat,...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/02C05B7/00C05G3/60C05G3/80
CPCC05B7/00C05G3/00C05G3/60C05G3/80C05G5/37C05B17/00C05C5/04C05C9/00C05D5/00C05D9/02C05F3/00C05F11/02
Inventor 王莉莉黄海周王桂川何晓玫
Owner 广西东林食品化工有限公司
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