Method for preparing special modifier for saline-alkali soil cotton fields from cotton stalks

A technology of saline-alkali soil and improver, applied in chemical instruments and methods, applications, organic fertilizers, etc., can solve problems such as aggravating the spread of diseases and insect pests, and achieve the effects of suitable crop growth, simple ingredients and low cost.

Inactive Publication Date: 2014-05-07
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the direct return of cotton stalks to the field has high requirements for mechanized crushing, which will aggravate the spre...

Method used

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  • Method for preparing special modifier for saline-alkali soil cotton fields from cotton stalks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]Cut the cotton stalks into 6cm lengths and put them in the fermentation tank. Put the impregnation solution inoculated with cellulolytic enzymes into the tank for retting. The soaking solution soaks the cotton stalks and stirs them every 5 days. After 20 days, clean the cotton stalks. Come out, continue to pile up after 10 days, dry in the sun, pulverize, obtain fermented cotton stalk.

[0037] Phosphogypsum is commercially available phosphogypsum produced by Qingdao Laixi Phosphate Fertilizer Factory. Its main parameters are pH 2.55, CaO weight percentage 34.8%, SO 3 The weight percentage is 46.8%, SiO 2 The weight percentage is 5.5%, P 2 o 5 The weight percentage content of MgO is 3.2%, the weight percentage content of MgO is 2.5%, Al 2 o 3 The weight percent composition is 1.8%.

[0038] Sulfur and phosphogypsum are crushed into powders with a particle size of less than 1 mm for later use.

[0039] The above three materials are compounded according to the ratio ...

Embodiment 2

[0043] Cut the cotton stalks into 8cm lengths and put them in the fermentation tank. Put the soaking solution inoculated with cellulolytic enzymes into the tank for retting. The soaking solution soaks the cotton stalks and stirs them every 3 days. After 15 days, clean the cotton stalks. Come out, continue to pile up after 15 days, dry in the sun, crush, obtain fermented cotton stalk.

[0044] Phosphogypsum is commercially available phosphogypsum produced by Qingdao Laixi Phosphate Fertilizer Factory. Its main parameters are pH 2.55, CaO weight percentage 34.8%, SO 3 The weight percentage is 46.8%, SiO 2 The weight percentage is 5.5%, P 2 o 5 The weight percentage content of MgO is 3.2%, the weight percentage content of MgO is 2.5%, Al 2 o 3 The weight percent composition is 1.8%.

[0045] Sulfur and phosphogypsum are crushed into powders with a particle size of less than 1 mm for later use.

[0046] The above three materials are compounded according to the ratio of ferme...

Embodiment 3

[0050] Cut the cotton stalks into 5cm lengths, put them in the fermentation tank, put the impregnation solution inoculated with cellulolytic enzymes into the tank for stack retting, soak the cotton stalks in the soaking solution, stir it every 5 days, and clean the cotton stalks after 15 days Come out, continue to pile up after 15 days, dry in the sun, crush, obtain fermented cotton stalk.

[0051] Phosphogypsum is commercially available phosphogypsum produced by Qingdao Laixi Phosphate Fertilizer Factory. Its main parameters are pH 2.55, CaO weight percentage 34.8%, SO 3 The weight percentage is 46.8%, SiO 2 The weight percentage is 5.5%, P 2 o 5 The weight percentage content of MgO is 3.2%, the weight percentage content of MgO is 2.5%, Al 2 o 3 The weight percent composition is 1.8%.

[0052] Sulfur and phosphogypsum are crushed into powders with a particle size of less than 1 mm for later use.

[0053] The above three materials are compounded according to the ratio of...

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Abstract

The invention provides a special modifier for saline-alkali soil cotton fields. The modifier comprises fermented cotton stalks, phosphogypsum and sulfur. The modifier is rich in organic matters, phosphogypsum and sulfur, applicable to medially-strongly saline-alkali soil cotton fields featured by high soil salinity, high pH, strong calcareous property, poor physical structure of soil and the like, capable of quickly modifying the saline-alkali soil and suitable for the growth of crops; furthermore, if the modifier is used for a long time, the fertilizer maintaining and water retaining capabilities of soil also can be improved; a preparation method of the special modifier for the saline-alkali soil cotton fields is simple in material blending and low in production cost; a compound modifier is prepared preferably from a plurality of industrial and agricultural wastes according to physical, chemical and biochemical principles; the compound modifier is rationally applied to soil according to the different saline-alkali degrees of the cotton fields, and as a result, the soil fertility is increased, the soil structure is improved, the soil alkalinity is neutralized, the salt elimination rate of the soil is increased and the growth of cotton is promoted.

Description

technical field [0001] The invention relates to the technical field of saline-alkali soil improvers, in particular to a method for preparing a special improver for saline-alkali soil cotton fields by using cotton stalks. Background technique [0002] With the rapid increase of population and the deteriorating climate conditions, the salinization of land is a worldwide ecological problem. An important limiting factor for the sustainable development of world agriculture. The area of ​​salinized cultivated land in my country is about 34.67 million hm 2 (520 million mu), ranking fourth in the world, second only to Australia, Mexico, and Argentina. my country's saline-alkali land is mainly distributed in 17 provinces including northeast, north, northwest and coastal areas. In order to ensure the safety of food production in our country, improve the ecological environment, and realize the sustainable utilization of resources, it is imminent to accelerate the development of sali...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K109/00C09K101/00
Inventor 崔德杰辛言君柳新伟刘庆花杜海岩
Owner QINGDAO AGRI UNIV
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