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Control method of solanaceous vegetable soil continuous cropping obstacles

A technology of soil continuous cropping obstacles and solanaceous fruits, which is applied in the agricultural field, can solve the problems of general control effects, etc., and achieve the effects of sufficient nutrition, strong root growth, and increased soil organic matter content

Inactive Publication Date: 2017-06-13
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biological control of soil-borne diseases is more feasible, but the disease is more serious and the continuous cropping soil has a general control effect.

Method used

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  • Control method of solanaceous vegetable soil continuous cropping obstacles
  • Control method of solanaceous vegetable soil continuous cropping obstacles
  • Control method of solanaceous vegetable soil continuous cropping obstacles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of biological bacterial fertilizer for preventing continuous cropping obstacles in solanaceous soil:

[0029] An antagonistic bacteria BZ6-1 isolated in the laboratory is Bacillus amyloliquefaciens (Bacillus amyloliquefaciens), which was preserved in the General Microbiology Center of the China Committee for the Collection of Microorganisms on January 22, 2009, with a preservation number of CGMCC NO.2892, and in China Fully disclosed in patent application 201010217803.4. A growth-promoting bacterium SC-12 is Bacillus stratosphericus, which was preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee on May 15, 2013. The preservation number is CGMCC NO.7622, ​​and it is patented in China. Fully disclosed in application 201310646842.X.

[0030] The antagonistic bacteria BZ6-1 and growth-promoting bacteria SC-12 were inoculated into LB liquid medium respectively for liquid fermentation production. Fermentati...

Embodiment 2

[0034] Example 2 Effects of different lime nitrogen application rates and control methods on the physical and chemical properties of pepper continuous cropping soil

[0035] Table 2 shows the effects of different lime nitrogen application rates and control methods on the physical and chemical properties of pepper continuous cropping soil. It can be seen from Table 2 that the application of lime nitrogen can increase the soil pH of continuous cropping, from 5.4 to 6.85, and it increases with the increase of the application amount of lime nitrogen. This is because lime nitrogen contains about 60% lime, which can increase the soil pH when applied to the soil. Application of chemical fertilizers can accelerate soil acidification. It can also be seen from Table 2 that compared with individual lime nitrogen application and lime nitrogen and chemical fertilizer treatment, lime nitrogen disinfection and biological bacterial fertilizer treatment can significantly improve the organic m...

Embodiment 3

[0038] Embodiment 3 urease activity assay

[0039] Take 2g of air-dried soil, put it into a 50mL Erlenmeyer flask, and add 0.5mL of toluene. After 15 min, 5 mL of 10% urea solution and 10 mL of citrate buffer at pH 6.7 were added. After shaking well, put it into a 37°C incubator and incubate for 24h. Filter, then take 1mL of the filtrate and pour it into a 50mL volumetric flask, then add 4mL of sodium phenoxide solution and 3mL of sodium hypochlorite solution, shake well, and start to develop color after 20 minutes. Standard curve drawing: draw the diluted standard solution 1, 3, 5, 7, 9, 11, 13mL and dilute to 20mL, then add 4mL sodium phenoxide solution and 3mL sodium hypochlorite solution, shake well, start to develop color after 20 minutes, then Volume. Colorimetric at 578nm within 1h. And draw a standard curve. NH produced by 1 g of soil after 24 hours for urease activity 3 The mg number of -N means: NH 3 -N(mg)=a*2 In the formula, a-NH found from the standard curv...

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Abstract

The invention discloses a control method of solanaceous vegetable soil continuous cropping obstacles. The method comprises the following steps: in the greenhouse fallow period, spreading lime nitrogen on soil, overturning, harrowing, watering, covering a film, sealing the greenhouse, and carrying out fumigation treatment at 60 DEG C or above for 15-25 days; and after the fumigation finishes, carrying out ventilation treatment on the greenhouse for 8-12 days, applying a biological bacterial fertilizer (800-1500kg.hm<-2>), carrying out ridge forming, transplanting solanaceous vegetable seedlings into the greenhouse, and covering the film. By applying the lime nitrogen in the earlier stage, the decomposition of the lime nitrogen obviously lowers the generation of soil-borne diseases of continuous cropping soil, and improves the physicochemical properties and biological properties of the soil. The biological bacterial fertilizer is applied in the planting process to reconstruct the healthy soil microecological environment, improve the soil structure, enhance the organic content of the soil and improve the saline-alkali soil, so that the soil microenvironment is improved, the plant root has sufficient nutrients, and the root system grows vigorously and has higher absorptivity. Besides, the biological bacterial fertilizer contains rich nutrients, and thus, can enhance the quality and yield of the agricultural products.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method for preventing and controlling soil continuous cropping obstacles of solanaceae. Background technique [0002] Continuous cropping obstacle refers to the phenomenon that two or more consecutive crops of the same crop or crop of the same family are planted in the same field, even under normal cultivation and management measures, the growth of the plant will be weakened, and the yield and quality will decrease. At present, the prevention and control of soil-borne diseases in continuous cropping of solanaceous vegetables mainly include the cultivation of resistant varieties, chemical control, biological control, and agricultural control such as crop rotation and stubble replacement. [0003] Chemical control mainly adopts soil disinfection and other methods to prevent and control soil-borne diseases, among which soil disinfection before cultivation is a comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00A01G13/00A01B79/02
Inventor 王小兵
Owner YANGZHOU UNIV
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