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A kind of soil conditioner and its preparation method and application

A technology of soil conditioner and saline-alkali soil, applied in the field of soil conditioner, can solve the problems of crops affecting the survival and growth of crops, the destruction of soil physical and chemical properties, and the decline of soil fertility. The effect of injured roots

Active Publication Date: 2022-03-08
HUNAN INST OF AGRI ENVIRONMENT & ECOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The harm of saline-alkali soil to crops is mainly due to the fact that too much soluble salt affects the survival and growth of crops, and secondly, too much salt in the soil will lead to damage to the physical and chemical properties of the soil, reducing soil fertility and affecting the absorption of nutrients by crops

Method used

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  • A kind of soil conditioner and its preparation method and application
  • A kind of soil conditioner and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of coconut shell carbon

[0037] Coconut shells are carbonized at 450°C under a nitrogen atmosphere to obtain coconut shell carbon, and then the coconut shell carbon is immersed in a solution of ferric chloride, zinc chloride and urea, wherein the concentration of ferric chloride is 0.3mol / L, the concentration of zinc chloride is 0.2 mol / L, the concentration of urea is 0.1 mol / L, keep warm at 40 ℃ to make iron ions and zinc ions generate colloids of iron hydroxide and zinc hydroxide, and then adjust the pH of the solution Adjusting the value to 9 makes the colloids grow and eventually turn into precipitates, allowing them to settle on the pore surfaces of the coconut shell carbon. Finally, the coconut shell is calcined at a temperature of 800° C. in a hydrocarbon atmosphere to reduce the iron oxide and zinc oxide into intermetallic compound particles of iron and zinc.

Embodiment 2

[0039] Preparation of coconut shell carbon

[0040] Coconut shells are carbonized at 550°C under a nitrogen atmosphere to obtain coconut shell carbon, and then the coconut shell carbon is immersed in a solution dissolved with ferric sulfate, zinc sulfate and urea, wherein the concentration of ferric sulfate is 0.4mol / L, sulfuric acid The concentration of zinc is 0.3mol / L, and the concentration of urea is 0.15mol / L. Keep warm at 50°C to make iron ions and zinc ions form colloids of iron hydroxide and zinc hydroxide, and then adjust the pH value of the solution to 9.5 Make the colloid grow up and finally turn into a precipitate, making it settle on the pore surface of the coconut shell carbon. Finally, the coconut shell is calcined at a temperature of 800° C. in a hydrocarbon atmosphere to reduce the iron oxide and zinc oxide into intermetallic compound particles of iron and zinc.

Embodiment 3

[0042] Preparation of Soil Conditioner

[0043] Grind 5 parts of Muss blasting root No. I to 100 mesh, then fully mix with 0.5 parts of aluminum potassium sulfate, 1 part of ferrous sulfate, 20 parts of desulfurized gypsum and 3 parts of coconut shell carbon prepared in Example 1 And spray granulation with a granulator.

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Abstract

The invention provides a soil conditioner, which comprises 20-40 parts of desulfurized lime, 5-20 parts of humic acid, 0.5-1.5 parts of aluminum potassium sulfate, 1-4 parts of ferrous sulfate and coconut shell charcoal in parts by weight. 3-5 parts; the pore surface of the coconut shell charcoal is loaded with iron and zinc particles. The soil conditioner provided by the invention is cheap and easy to obtain, has a simple production method, short production cycle, and low production cost, can improve the physical and chemical properties of saline-alkali soil and increase soil fertility, significantly repair the injured root system of crops, promote the growth of vegetative roots, and enhance the disease resistance of crops , Cold and drought resistance, to ensure stable and high yields of crops.

Description

technical field [0001] The invention relates to a soil conditioner for improving the fertility of saline-alkali land, a preparation method thereof and an application for planting rice in saline-alkali soil, belonging to the field of soil conditioners. Background technique [0002] Saline-alkali soil resources cover more than 100 countries in the world, with a total area of ​​1 billion hm 2 . There are about 27 million hm of saline-alkali land in my country 2 , of which 06 million hm 2 It is arable land, 21 million hm 2 Saline-alkali wasteland, saline-alkali barrier cultivated land and saline-alkali land with agricultural development potential account for more than 50% of all saline-alkali lands. The prevention and control of soil salinization and the development and utilization of saline-alkali soil are of great significance to improving the ecological environment, social and economic development, and promoting sustainable progress. [0003] The harm of saline-alkali so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C05G3/00C05G3/80C05G5/12A01B79/02A01N61/00A01N63/00A01P21/00C09K109/00C09K101/00
CPCC09K17/40C05G3/00C05G3/80C05G5/12C05C11/00A01B79/02A01N61/00A01N63/00C09K2109/00C09K2101/00C05D1/02C05D3/02C05D9/00C05D9/02C05F11/00C05F11/02
Inventor 李尝君罗海艳谭迪何钟响纪雄辉
Owner HUNAN INST OF AGRI ENVIRONMENT & ECOLOGY