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Soil sterilization method for preventing and treating vegetable continuous cropping diseases through chlorine dioxide and calcium oxide

A chlorine dioxide and soil disinfection technology, applied in chemical instruments and methods, disinfectants, land preparation methods, etc., can solve problems such as unfavorable vegetable growth, soil pH reduction, soil acidification, etc., and achieve the advantages of plant growth and simple steps. , The effect of using the environment is safe and pollution-free

Inactive Publication Date: 2016-07-20
SHENZHEN OUTAIHUA ENG EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chlorine dioxide disinfectant is an acidic disinfectant, which will easily lead to the decrease of soil pH value after use, which is not conducive to the growth of vegetables, especially long-term use will lead to soil acidification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] During the leisure period of the greenhouse, level the soil; irrigate the soil with 20 tons / mu of ground water, and use a flow meter to evenly add 160L of chlorine dioxide disinfectant with a concentration of 10g / l to the water; The concentration of chlorine dioxide disinfectant in water is 80mg / l, and the depth of permeable layer reaches 25cm. After irrigation, let it dry naturally for 3 days, until the soil is semi-wet and semi-dry, evenly spread 20kg / mu of quicklime powder on the surface of the soil; after 1 day of rotary tillage, you can fertilize and sow or plant vegetables. The pH value of the soil was adjusted to 6, and the soil was used for continuous cropping of vegetables in greenhouses.

[0026] Chlorine dioxide disinfectant includes two solid substances, A component and B component, which are separately sealed and packaged. The A component and B component are made of the following raw materials in mass percentage:

[0027] A component: sodium chlorite 60%, ...

Embodiment 2

[0031] During the leisure period of the greenhouse, level the soil; irrigate 25 tons / mu of ground water into the soil, and at the same time, use a flow meter to evenly add 250L of chlorine dioxide disinfectant with a concentration of 10g / l; The concentration of chlorine dioxide disinfectant in water is 100mg / l, and the depth of permeable layer reaches 30cm. After irrigation, let it dry naturally for 5 days, until the soil is semi-wet and semi-dry, evenly sprinkle 30kg / mu of quicklime powder on the surface of the soil; after 1 day of rotary tillage, you can adjust the fertilization and planting of vegetables. The pH value of the soil was adjusted to 7.5, and the soil was used for continuous cropping of vegetables in greenhouses.

[0032] Chlorine dioxide disinfectant includes two solid substances, A component and B component, which are separately sealed and packaged. The A component and B component are made of the following raw materials in mass percentage:

[0033] A componen...

Embodiment 3

[0037] During the leisure period of the greenhouse, level the soil; irrigate the soil with 23 tons / mu of ground water, and at the same time, use a flow meter to evenly add 200L of chlorine dioxide disinfectant with a concentration of 10g / l; The concentration of chlorine dioxide disinfectant in water is 90mg / l, and the depth of permeable layer reaches 28cm. After irrigation, let it dry naturally for 4 days. After the soil is semi-wet and semi-dry, spread quicklime powder 25kg / mu evenly on the surface of the soil; after 1 day of rotary tillage, you can fertilize and sow or plant vegetables. The pH value of the soil was adjusted to 7, and the soil was used for continuous cropping of vegetables in greenhouses.

[0038] Chlorine dioxide disinfectant includes two solid substances, A component and B component, which are separately sealed and packaged. The A component and B component are made of the following raw materials in mass percentage:

[0039] Component A: sodium chlorite 70%...

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Abstract

The invention discloses a soil sterilization method for preventing and treating vegetable continuous cropping diseases through chlorine dioxide and calcium oxide. The method comprises the following steps that 1, within the fallow period of a greenhouse, soil is leveled; land irrigation water is irrigated to the soil, a chlorine dioxide disinfectant with the concentration being 10 g / l is put, the concentration of the chlorine dioxide disinfectant in the water entering the soil is 80-100 mg / l, and the depth of a permeable layer reaches 25-30 cm; 2, after irrigation is completed, the soil is naturally dried in the air for 3-5 days, and after the soil is in the half-wet and half-dry condition, calcium oxide powder is spread over the soil surface uniformly according to the amount of 20-30 kg per mu; in one day after rotary tillage, ridges are regulated, fertilizer is applied, and planting is carried out. The method is simple in step, low in cost and environmentally friendly. The effect of preventing and treating the continuous cropping diseases is remarkable, residual pollution is avoided, it can be better ensured that the soil acidity and alkalinity after sterilization reaches the pH value suitable for growth of vegetables, growth of crops is promoted, and the yield is increased remarkably.

Description

technical field [0001] The invention relates to a soil disinfection method, in particular to a soil disinfection method for chlorine dioxide combined with quicklime to prevent and control vegetable continuous cropping diseases. Background technique [0002] Soil-borne diseases are an important class of plant diseases, infecting and harming the roots of plants, causing rot or abnormal growth of plant roots, and even causing systemic damage to the whole plant. When the environmental conditions are suitable, it will spread rapidly, and once it occurs, it will be very difficult to prevent and control, often causing the destruction of seeds or crop failure, resulting in serious economic losses. [0003] Most of the existing soil disinfection methods use chemical disinfection methods. Commonly used chemical fumigants include methyl bromide, chloropicrin, metabam, dacetamone, lime nitrogen, etc. Most of these fumigants are highly toxic and high-residue pesticides, which are very e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L2/18A61L2/23A01B79/00A01N59/06A01N59/00A01P1/00A01P3/00A01P5/00C09K17/06C09K101/00C09K109/00A61L101/06A61L101/02
CPCA01B79/00A01N59/00A01N59/06A61L2/18A61L2/23C09K17/06C09K2101/00C09K2109/00A01N2300/00
Inventor 崔永顺张家祯孙玉曾妍
Owner SHENZHEN OUTAIHUA ENG EQUIP
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