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Preparation method of ammonium phosphate containing humic acid synergistic carrier and suitable for alkaline soil

A technology of humic acid and ammonium phosphate, which is applied in the direction of alkaline orthophosphate fertilizer, ammonium orthophosphate fertilizer, phosphate fertilizer, etc., and can solve the problems such as the patent application of humic acid ammonium phosphate that has not been seen

Inactive Publication Date: 2019-03-08
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no patent applications and related materials for ammonium humate phosphate suitable for alkaline soils.

Method used

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  • Preparation method of ammonium phosphate containing humic acid synergistic carrier and suitable for alkaline soil
  • Preparation method of ammonium phosphate containing humic acid synergistic carrier and suitable for alkaline soil
  • Preparation method of ammonium phosphate containing humic acid synergistic carrier and suitable for alkaline soil

Examples

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Effect test

Embodiment 1

[0080] Embodiment 1: Preparation of ammonium phosphate containing humic acid synergistic carrier suitable for alkaline soil

[0081] The implementation steps of this embodiment are as follows:

[0082] A, humic acid organic extractant preparation

[0083] Add 30 parts by weight of monoethanolamine, 8 parts by weight of potassium citrate, 8 parts by weight of potassium salicylate and 8 parts by weight of ethylene glycol to 2000 parts by weight of water at a temperature of 60°C, stir and dissolve at a speed of 60 rpm, The obtained solution is cooled to a temperature below 35° C. to obtain the humic acid organic extractant;

[0084] B, preparation of humic acid extract

[0085] Add 100 parts by weight of the weathered coal humic acid mineral raw material with a particle size of 150 meshes to 1250 parts by weight of the humic acid organic extractant obtained in step A, then gradually raise its temperature to 90° C. under stirring at 100 rpm, and Keep at this temperature for 40 ...

Embodiment 2

[0090] Embodiment 2: Preparation of ammonium phosphate containing humic acid synergistic carrier suitable for alkaline soil

[0091] The implementation steps of this embodiment are as follows:

[0092]A, humic acid organic extractant preparation

[0093] Add 20 parts by weight of diethanolamine, 5 parts by weight of potassium citrate, 5 parts by weight of potassium salicylate and 5 parts by weight of ethylene glycol to 1400 parts by weight of water at a temperature of 64°C, stir and dissolve at a speed of 100 rpm to obtain The solution is cooled to a temperature below 35°C to obtain the humic acid organic extractant;

[0094] B, preparation of humic acid extract

[0095] 100 parts by weight of the lignite humic acid mineral raw material with a particle size of 200 were added to 800 parts by weight of the humic acid organic extractant obtained in step A, and then its temperature was gradually raised to 90° C. under stirring at 130 rpm, and at this Maintain the temperature fo...

Embodiment 3

[0100] Embodiment 3: Preparation of ammonium phosphate containing humic acid synergistic carrier suitable for alkaline soil

[0101] The implementation steps of this embodiment are as follows:

[0102] A, humic acid organic extractant preparation

[0103] Add 40 parts by weight of triethanolamine, 10 parts by weight of potassium citrate, 10 parts by weight of potassium salicylate and 10 parts by weight of ethylene glycol to 1000 parts by weight of water at a temperature of 67°C, stir and dissolve at a speed of 180 rpm to obtain The solution is cooled to a temperature below 35°C to obtain the humic acid organic extractant;

[0104] B, preparation of humic acid extract

[0105] 100 parts by weight of the lignite humic acid mineral raw material with a particle size of 250 meshes is added to 1500 parts by weight of the humic acid organic extractant obtained in step A, and then its temperature is gradually raised to 90° C. under stirring at 180 rpm, and at this Maintain the temp...

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Abstract

The invention relates to a preparation method of ammonium phosphate containing a humic acid synergistic carrier and suitable for alkaline soil. The preparation method comprises the following steps: preparation of an organic humic acid extracting agent, preparation of a humic acid extracting solution, preparation of a humic acid synergistic carrier and preparation of ammonium phosphate containing the humic acid synergistic carrier. The ammonium phosphate containing the humic acid synergistic carrier can significantly slow down the immobilization of the ammonium phosphate in the alkaline soil byaffecting the pH value of a fertilizer, improve the effectiveness of phosphorus and supplement an effective phosphorus bank in the soil. Compared with those of commercially available ammonium phosphate, the pH of soil in 1cm of soil fertility is decreased by 0.3 to 1.4 units, Ca2-P and Ca8-P in the soil are relatively increased by 22% and 16% averagely, the weight and the activity of wheat rootsare increased by 35% or more than 35%; and compared with those of the commercially available ammonium phosphate, the yield of wheat treated with the ammonium phosphate containing the humic acid is increased by 12% or more than 12%, and the utilization ratio of a phosphate fertilizer is increased by 9%.

Description

【Technical field】 [0001] The invention relates to the technical field of fertilizer production. More specifically, the present invention relates to a preparation method of ammonium phosphate containing humic acid synergistic carrier suitable for alkaline soil. 【Background technique】 [0002] my country's phosphorus resource reserves only account for 5.5% of the world's total reserves, and the per capita resource amount is only 39% of the world's average level. Ammonium phosphate is the most important phosphate fertilizer in my country, but because it is easily fixed by calcium, magnesium, iron, aluminum and other metal ions after entering the soil, the utilization rate in the current season is only about 20%, causing huge economic losses and waste of resources. Only when the soil pH is 6-7, the concentration of available phosphorus is the highest. The content of calcium and magnesium ions in alkaline soil is high. After phosphorus enters the soil, more than 80% of it will ...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B7/00C05G5/45C05F11/02
Inventor 袁亮赵秉强李燕婷林治安张水勤王薇
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI