Humic acid slow release fertilizer suitable for long-term improvement of secondary salinization land

A humic acid and saline-alkali land technology, applied in the field of humic acid slow-release fertilizers, can solve the problems of unsatisfactory slow-release fertilizer effects, poor controlled-release performance of low-solubility slow-release fertilizers, etc., achieve high use efficiency, improve conversion efficiency, Salt removal effect is obvious

Inactive Publication Date: 2017-02-15
SHANDONG SUNWAY LANDSCAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-solubility slow-release fertilizers can be produced with ordinary disc or drum granulation equipment. The cost of the production process is low, and the price of fertilizers is low. However, the controlled-release performance of low-solubility slow-release fertilizers is poor, and the slow-release effect of fertilizers is often not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of humic acid slow-release fertilizer suitable for long-term improvement of secondary saline-alkali land, calculated in parts by mass, its raw material formula is as follows:

[0025] 120 parts of crop waste, 400 parts of humic acid, 160 parts of urea, 120 parts of nano-calcium carbonate, 80 parts of slag, 60 parts of high-viscosity attapulgite clay powder, 20 parts of azotobacter, 1200 parts of binder, microbial fermentation Bacteria 14 parts

[0026] Wherein, the binder includes by mass parts: 4 parts of polyvinyl alcohol, 3 parts of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, 0.7 parts of sodium fluorosilicate, Potassium chloride 2 parts, super absorbent resin 0.4 parts.

[0027] Among them, the crop waste is a mixture composed of straw, bagasse, cassava residue, leaves, and peanut shells in a mass ratio of 5:3:1:2:1;

[0028] Among them, the microbial fermentation agent includes 15 parts of Bacillus, ...

Embodiment 2

[0030] A kind of humic acid slow-release fertilizer suitable for long-term improvement of secondary saline-alkali land, calculated in parts by mass, its raw material formula is as follows:

[0031] 180 parts of crop waste, 250 parts of humic acid, 200 parts of urea, 160 parts of nano-calcium carbonate, 120 parts of slag, 30 parts of high-viscosity attapulgite clay powder, 8 parts of azotobacter, 800 parts of binder, microbial fermentation 10 parts of bacterial agent; wherein, the binder includes by mass parts: 4 parts of polyvinyl alcohol, 1 part of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicon 0.7 parts of sodium chloride, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.

[0032] Among them, the microbial fermentation agent includes 15 parts of Bacillus, 26 parts of Pseudomonas aeruginosa, 10 parts of Paracoccus denitrification, 12 parts of Candida lipolytica, 8 parts of Rhodococcus, Pse...

Embodiment 3

[0034] A kind of humic acid slow-release fertilizer suitable for long-term improvement of secondary saline-alkali land, calculated in parts by mass, its raw material formula is as follows:

[0035]140 parts of crop waste, 300 parts of humic acid, 160 parts of urea, 120 parts of nano-calcium carbonate, 85 parts of slag, 30 parts of high-viscosity attapulgite clay powder, 10 parts of azotobacter, 850 parts of binder, microbial fermentation 10 parts of bacterial agent; wherein, the binder includes by mass parts: 4 parts of polyvinyl alcohol, 1 part of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicon 0.7 parts of sodium chloride, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.

[0036] Among them, the microbial fermentation agent includes 15 parts of Bacillus, 26 parts of Pseudomonas aeruginosa, 10 parts of Paracoccus denitrification, 12 parts of Candida lipolytica, 10 parts of Rhodococcus, Pse...

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Abstract

The invention discloses a humic acid slow release fertilizer suitable for long-term improvement of secondary salinization land. The humic acid slow release fertilizer comprises, by mass, 120-180 parts of crop wastes, 250-400 parts of humic acid, 160-200 parts of urea, 120-160 parts of nanometer calcium carbonate, 80-120 parts of mineral slag, 30-60 parts of high viscosity attapulgite clay powder, 8-20 parts of Azotobacter chroococcum, 800-1200 parts of a binder and 10-14 parts of a microbial fermentation agent. The above scientific and reasonable formula of the humic acid slow release fertilizer suitable for long-term improvement of secondary salinization land is obtained through a large amount of experiment researches carried out by the applicant, and the humic acid slow release fertilizer has fertilizing effect slow release and water retention functions, provides nutrient components needed by growth of plants, keeps no loss of nutrient components in a powdery saline and alkaline land water retention slow release fertilizer, and is in favor of realizing normal growth of the plants.

Description

technical field [0001] The invention relates to a humic acid slow-release fertilizer suitable for long-term improvement of secondary saline-alkali land. Background technique [0002] Soil secondary salinization, also known as "secondary salinization", refers to the process of turning good cultivated land into "salinization" due to unreasonable cultivation and irrigation measures and changes in vegetation. It mainly occurs in my country's North China Plain, Songliao Plain, Hetao Plain, Weihe Plain and other places. There are three main reasons for the formation of secondary salinization: First, the drainage system of farmland is not smooth, and a large amount of water diversion irrigation has raised the groundwater level, increased the speed of groundwater moving upward through the soil capillary and the evaporation of groundwater, thereby increasing the groundwater and the lower level. The salt in the soil accumulates to the surface. Second, unreasonable irrigation destroys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05C3/00C05G3/00C05G3/80C05C9/00C05D1/02C05D3/02C05D9/00C05F5/002C05F11/00C05F11/02C05F11/08
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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