Multifunctional compound fertilizer special for saline-alkali soil and preparation method of multifunctional compound fertilizer

A multi-functional, saline-alkali land technology, applied in the field of agricultural fertilizers, can solve the problems of long-term and effective water and fertilizer retention, cure the symptoms but not the root cause, and high input, and achieve obvious effects of increasing yield, prolonging fertilizer efficiency time, and improving yield and quality.

Active Publication Date: 2016-08-17
北京飞鹰绿地科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, a large amount of fertilizer can not be absorbed and utilized by crops, resulting in high input and low output.
At present, the special fertilizers for saline-alkali land on the market only improve the alkalinity of the soil, and cannot effectively retain water and fertilizer for a long time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The multi-functional compound fertilizer for saline-alkali land is composed of the following raw materials in parts by weight: 40 parts of nitrohumic acid granules, 20 parts of citric acid residue, 5 parts of modifier, 15 parts of duckweed residue, and 5 parts of magnetic biochar , 15 parts of super absorbent resin, 10 parts of nitrogen, phosphorus and potassium compound fertilizer, 6 parts of binder;

[0032] The modifier is obtained by mixing sodium ethylenediamine tetramethylene phosphonate and diethanol monoisopropanolamine according to a weight ratio of 1:0.2;

[0033] The binder is prepared by mixing attapulgite clay and sodium hydroxymethylcellulose at a weight ratio of 1:1.

[0034] The duckweed residue is prepared by the following method: green duckweed, EM composite bacterial agent, and water are thrown into a fermentation tank, anaerobically fermented at 30-35° C. for 10 days, and dried until the water content is 20%. Get duckweed scum.

[0035] The magneti...

Embodiment 2

[0049] The multifunctional compound fertilizer for saline-alkali land is composed of the following raw materials in parts by weight: 36 parts of nitrohumic acid granules, 16 parts of citric acid residue, 7 parts of modifier, 17 parts of duckweed residue, and 8 parts of magnetic biochar , 12 parts of superabsorbent resin, 17 parts of nitrogen, phosphorus and potassium compound fertilizer, and 5 parts of binder;

[0050] The modifier is obtained by mixing sodium ethylenediamine tetramethylene phosphonate and diethanol monoisopropanolamine according to a weight ratio of 1:0.3;

[0051] A special multifunctional compound fertilizer for saline-alkali land is prepared by the following method:

[0052] 1) uniformly mixing modifier, magnetic biochar, superabsorbent resin and nitrogen, phosphorus and potassium compound fertilizer to obtain material 1;

[0053] 2) Pulverize the nitrohumic acid particles, citric acid slag, and duckweed slag, and mix them evenly with the binder to obtain...

Embodiment 3

[0061]The special multifunctional compound fertilizer for saline-alkali land is composed of the following raw materials in parts by weight: 28 parts of nitrohumic acid granules, 14 parts of citric acid residue, 8 parts of modifier, 21 parts of duckweed residue, and 11 parts of magnetic biochar , 8 parts of super absorbent resin, 24 parts of NPK compound fertilizer, 4 parts of binder;

[0062] The modifier is obtained by mixing sodium ethylenediamine tetramethylene phosphonate and diethanol monoisopropanolamine according to a weight ratio of 1:0.4;

[0063] A special multifunctional compound fertilizer for saline-alkali land is prepared by the following method:

[0064] 1) uniformly mixing modifier, magnetic biochar, superabsorbent resin and nitrogen, phosphorus and potassium compound fertilizer to obtain material 1;

[0065] 2) Pulverize the nitrohumic acid particles, citric acid slag, and duckweed slag, and mix them evenly with the binder to obtain material 2;

[0066] 3) D...

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Abstract

The invention discloses multifunctional compound fertilizer for saline-alkali soil. The multifunctional compound fertilizer comprises, by weight, 20-40 parts of nitrohumic acid particles, 10-20 parts of citric acid residues, 5-10 parts of modifier, 15-25 parts of duckweed residues, 5-15 parts of magnetic biochar, 5-15 parts of super-absorbent resin, 10-30 parts of nitrogen-phosphorus-potassium compound fertilizer and 2-6 parts of binder. The invention further discloses a preparation method of the multifunctional compound fertilizer. The multifunctional compound fertilizer has the advantages that the components of the multifunctional compound fertilizer are combined, and the multifunctional compound fertilizer is low in cost, scientific and reasonable in proportion, sufficient in nutrition, high in utilization rate, evident in yield increasing effect, balanced in nutrition of each particle, capable of evidently improving the soil, increasing the granular structure in the soil, lowering the pH of the soil and fundamentally improving the physical and chemical properties of the saline-alkali soil, especially suitable for the growth of crops in the saline-alkali soil and capable of providing a guarantee to the yield increasing and the income creating of farmers. The preparation method of the multifunctional compound fertilizer is simple, practicable and suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a special multifunctional compound fertilizer for saline-alkali land and a preparation method thereof. Background technique [0002] my country is a country where saline-alkali soil is widely distributed. There are more than 500 million mu of saline-alkali land in our country, and saline-alkali soil is not conducive to plant growth. At present, there are 17 provinces, municipalities, and autonomous regions in my country where saline-alkali land is distributed, mainly in the northwest, north, northeast and coastal areas. It is imminent to transform the saline-alkali land and increase the agricultural output of the saline-alkali land. [0003] The main feature of saline-alkali land is that it contains more water-soluble salt or alkaline substances. Due to the high salinity and high alkalinity in the soil, the soil organic matter is destroyed and lost, and the trac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B15/00C05G3/00C05G3/80C05F5/006C05F11/00C05G1/00C05F11/02C05G5/12C05D9/00
Inventor 韩菊杨世勇杨世英
Owner 北京飞鹰绿地科技发展有限公司
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