Water-retaining agent and compound functional fertilizer thereof

A functional, water-retaining agent technology, applied in urea compound fertilizers, alkaline orthophosphate fertilizers, organic fertilizers, etc., can solve problems such as fertilizer loss constraints, low fertilizer utilization rates, and impacts on agricultural production efficiency, and achieve pollution reduction, Improve the utilization rate and increase the effect of crop photosynthesis

Inactive Publication Date: 2016-07-06
STANLEY AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on the one hand, the low utilization rate of conventional water-soluble chemical fertilizers and the serious loss of chemical fertilizers have become a major problem restricting agri

Method used

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  • Water-retaining agent and compound functional fertilizer thereof
  • Water-retaining agent and compound functional fertilizer thereof
  • Water-retaining agent and compound functional fertilizer thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example one:

[0041] Water retaining fertilizer (N-P 2 O 5 -K 2 O: 28-6-6) Preparation method

[0042] Add 20 parts of magnesium sulfate, 70 parts of water-retaining agent, 30 parts of borax, and 15 parts of ammonium molybdate according to the weight ratio of water-retaining components. The stirrer speed is 100r / min, and the constant temperature reaction is 90min to form an environment-friendly water-retaining material. Then, the water-retaining material is coated to 300 parts of large urea with a particle size of 2.2-4.2mm by using a rotating drum fluidized bed process to make water-retaining urea. Among them, the weight ratio of the water-holding material and the coated granular fertilizer is controlled to 4:100. Finally, 200 parts of monoammonium phosphate, 350 parts of potassium sulfate and 15 parts of potassium humate are mixed and mixed in a certain proportion to make 28-6-6 water-retaining fertilizer.

Example Embodiment

[0043] Example two

[0044] Water retaining fertilizer (N-P 2 O 5 -K 2 O: 26-12-10) Preparation method

[0045] Add 30 parts of magnesium sulfate, 80 parts of water-retaining agent, 30 parts of borax, and 15 parts of ammonium molybdate according to the weight ratio of the water-retaining components. The stirrer speed is 100r / min, and the constant temperature reaction is 90min to form an environment-friendly water-retaining material. Then, the water-retaining material is coated to 300 parts of large urea with a particle size of 2.2-4.2mm by using a rotating drum fluidized bed process to make water-retaining urea. Among them, the weight ratio of the water-holding material and the coated granular fertilizer is controlled to 4:100. Finally, 230 parts of monoammonium phosphate, 290 parts of potassium sulfate and 45 parts of potassium humate are mixed in a certain proportion to make 28-12-10 water-retaining fertilizer.

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Abstract

The invention discloses a water-retaining agent and a compound functional fertilizer thereof, and belongs to the technical field of agricultural fertilizers. The water-retaining agent takes acrylamide, acrylic acid, 2-acrylamide octa-alkyl sulphonic acid and dimethyl diallyl ammonium chloride as monomers, takes potassium persulfate and sodium hydrogen sulfite as initiators and is a polypropylene acid amide polymer formed through polymerization; the compound functional fertilizer is prepared from urea, monoammonium phosphate, potassium sulfate, the water-retaining agent, potassium humate, magnesium sulfate, borax and ammonium molybdate. By means of the water-retaining agent and the compound functional fertilizer thereof, complex integration of the fertilizer and the water-retaining is achieved, the water-retaining fertilizer capable of increasing the water and fertilizer utilization rate is developed, and the water-retaining agent and the compound functional fertilizer thereof have the advantages that the environment is protected, the oil structure is improved, the crop stress-resistance capacity is enhanced, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of functional fertilizers, and in particular relates to a water-retaining agent and a composite functional fertilizer thereof. Background technique [0002] Water and fertilizer are two important factors affecting agricultural production. However, on the one hand, the low utilization rate of conventional water-soluble chemical fertilizers and serious fertilizer losses have become a major problem restricting agricultural production efficiency and affecting the environment. New fertilizers are an effective technology to increase the utilization rate of chemical fertilizers and reduce fertilizer losses. On the other hand, the shortage of water resources makes the urgency of agricultural water saving increasingly stronger. The use of water-retaining agents in dryland agriculture and water-saving agriculture has become an important water-saving technology. The development of water-retaining functional fertilize...

Claims

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Application Information

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IPC IPC(8): C05G3/04C08F220/56C08F220/06C08F220/58C08F236/20C05G3/80
CPCC05B7/00C05G3/80C08F220/56C05C3/00C05C9/00C05D1/02C05D5/00C05D9/00C05F11/02C08F220/06C08F220/585C08F236/20
Inventor 高进华靖美萍赵玉平韩众
Owner STANLEY AGRI GRP CO LTD
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