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Phytase organic fertilizer and preparation method thereof

A technology of phytase and organic fertilizer, which is applied in the direction of organic fertilizer, fertilization device, excretion fertilizer, etc., can solve the problems of phytase application limitation, quantity and activity influence, etc., and achieve the improvement of soil phytase activity, good adsorption effect, The effect of promoting conversion into available phosphorus

Inactive Publication Date: 2015-07-08
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quantity and activity of phytase directly applied to soil or mixed with feces are easily affected by various environmental factors, such as the degradation of phytase by protease, the inhibition of phytase activity by metal ions and physical and chemical properties, etc. , these factors limit the application of phytase in soil and fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Weigh 100kg of weathered coal with a particle size of 75 microns, then weigh 15kg of bentonite with a particle size of 150 microns, pour the two into a blender, start the blender, stir for 3-5 minutes, and mix 5 liters of commercially available 5000U / ml Sprinkle the liquid phytase into the above-mentioned running mixer for 3-5 times, and continue stirring for 3-5 minutes after all the spraying, and then pour 880kg of decomposed pig manure without adding phosphate fertilizer into the above-mentioned running mixer, and continue stirring After 5-8 minutes, the phytase organic fertilizer is prepared.

Embodiment 2

[0011] Take by weighing 125kg of weathered coal with a particle size of 100 microns, and then weigh 20kg of bentonite with a particle size of 180 microns, pour the two into a mixer, start the mixer, and after stirring for 3-5 minutes, mix 5 kg of commercially available powder with an activity of 5000U / g Pour the phytase-like phytase into the above-mentioned running mixer, and sprinkle 5 liters of water into the mixer in 3-5 times at the same time, and then stir for 3-5 minutes after the watering is completed, then pour it out from the mixer and mix it into 1350kg without adding In the decomposed chicken manure of phosphate fertilizer, the phytase organic fertilizer can be obtained after being dumped 5-8 times with a forklift.

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Abstract

The invention discloses a phytase organic fertilizer and a preparation method thereof. The preparation method includes following steps: (1) mixing weathered coal at a certain granularity and bentonite according to the mass ratio of 5-8:1 to prepare humified bentonite; (2) adding the commercially-available phytase according to a certain proportion to the humified bentonite to prepare immobilized phytase; and (3) mixing the immobilized phytase with composted monogastric animal dry feces according to the mass ratio of 10-15:100 with stirring uniformly to obtain the phytase organic fertilizer. The preparation method is simple in operation and the phytase organic fertilizer is simple in use. The phytase in the fertilizer can maintain the activity for a long time so that phytic acid in pig manure, poultry manure and human feces can be decomposed to release inorganic phosphorus. The phytase organic fertilizer, when being applied in soil, can increase the activity of the phytase in soil, can promote the organic phosphorus in soil to be converted into inorganic phosphorus and can increase the bio-availability of the organic phosphorus.

Description

(1) Technical field [0001] The invention relates to a new type of fertilizer and belongs to the field of fertilizer and its processing. (2) Background technology [0002] Phosphorus is one of the essential elements for plant growth and development, and the phosphorus needed by plants mainly comes from the soil. Soil phosphorus includes inorganic phosphorus and organic phosphorus, of which organic phosphorus accounts for about 20% to 50% of the total phosphorus content of the soil. Phytic acid (phytic acid) and phytate (collectively referred to as phytate phosphorus) are the main forms of soil organic phosphorus, but phytate phosphorus is a macromolecule that needs to be decomposed and converted into inorganic phosphorus before it can be absorbed and utilized by roots. Phytase is a phosphomonoesterase that can hydrolyze phytate phosphorus into inositol and phosphate (salt). Soil phytase is mainly secreted by soil microorganisms, but long-term single application of chemical f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F3/00C05F3/02C05F3/04
CPCY02A40/20
Inventor 杨洪强杨萍萍
Owner SHANDONG AGRICULTURAL UNIVERSITY
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