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Sequential cropping obstacle regulate and control agent

A technology of continuous cropping obstacles and regulators, applied in fertilizer mixtures, soil conditioning materials, organic fertilizers, etc., can solve problems such as continuous cropping obstacles, increase emergence rate and biomass, increase yield, enhance plant resistance to pathogens, and improve microbiology. The effect of ecological environment

Inactive Publication Date: 2005-06-15
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the present invention can increase the emergence rate and biomass at the seedling stage, increase the output by 10-40% in the later stage, and can obviously improve the poor growth of crops in the production of protected vegetables and flowers, and effectively solve the problem of continuous cropping obstacles of plants

Method used

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  • Sequential cropping obstacle regulate and control agent
  • Sequential cropping obstacle regulate and control agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 400g castor cake fertilizer and 1600ml 95% ethanol in the flask, after leaching under boiling condition for 2 hours, the leaching solution is poured out.

[0023] Add 800ml of 95% ethanol to the residue for leaching for the second time, then leaching for 1 hour under boiling conditions, pour out the leaching solution and combine it with the first leaching solution; then, distill the leaching solution in a flask under heating in a water bath, The distilled ethanol is recovered, the solid extract is scraped out, and placed in a sample bottle after air-drying for subsequent use;

[0024] Column chromatography separation: use silica gel G60 to pack the column, and the eluent is CHCl 3 :CH 3 OH=8:2, different fractions were received according to fluorescence detection, a total of 23 fractions were received. Take the 10th extract with the highest quality for later use.

[0025] The extract, potassium sulfate and micro-fertilizer can be used after uniform mixing accordi...

Embodiment 2

[0027] Utilize the continuous cropping obstacle regulating agent prepared by the method described in Example 1, carry out application experiment in the greenhouse of School of Life Sciences, Nankai University, Tianjin. Cucumber shed. In the spring of 2001, a large number of dead seedlings of cucumbers appeared in this shed. When digging soil, the soil was dug in the borders where the growth of cucumber plants was obviously poor or where there were dead seedlings. Soil physical and chemical properties are: hydrolyzed nitrogen 132.8mg.kg-1, available phosphorus 536.8mg.kg-1, available potassium 147.5mg.kg-1, organic matter 3.162%, pH7.95, total salt 0.223%. Apply 2.5kg of soil to each pot and apply base fertilizer (0.3g N-0.2g P per kg of soil) 2 o 5 -0.3g K 2 O) and add active substance 0.5% (crop continuous cropping obstacle regulating agent) and mix evenly with soil by design. The seeds were sown in the autumn of 2001, harvested 30 days after sowing, and cultivated at room...

Embodiment 3

[0039] Location: Xiqing District, Tianjin

[0040] Apply base fertilizer (0.3g N-0.2g P per kg soil 2 o 5 -0.3g K 2 O) and add active substance 0.5% (utilize the plant rhizosphere regulating agent prepared by the method described in Example 1) by design and mix with soil. In April 2003, it was applied in the form of topdressing, and in June 2003, the yield was investigated four times (Table 2).

[0041] Table 2 Effects of continuous cropping obstacle regulators on cucumber yield increase (unit: kg / furrow)

[0042] June 2 June 4 June 8 June 10

[0043] Control 1.84 2.32 1.14 0.90

[0044] (131%) (121%) (127%) (141%)

[0045] Continuous cropping obstacle 1.40 1.91 0.89 0.62

[0046] Regulator (100%) (100%) (100%) (100%)

[0047] In the brackets, the output of each control is taken as 100%, and the output of the rhizosphere regulator on the corresponding date is compared with the control to obtain the increase in output.

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Abstract

The invention relates to a crop continuous cropping obstacle regulator containing fatty acid. It includes cake fertilizer containing fatty acids such as oleic acid, palmitic acid and stearic acid, potassium fertilizer and micro-fertilizer of various trace elements. The mass ratio of the cake fertilizer, potash fertilizer and micro-fertilizer is 1000-2000:10-30:1.7-3.5. The invention can adjust the carbon and nitrogen balance of plant rhizosphere, improve the micro-ecological environment of plant growth, enhance the resistance of plants to pathogens and soil salinization tolerance, has stable chemical and physical properties, and is simple and easy to use. Increase the emergence rate and biomass in the seedling stage, and increase the yield by 10-40% in the later stage. It can significantly improve the poor growth of crops in the production of vegetables and flowers in protected areas, and effectively solve the problem of plant continuous cropping obstacles. The production cost is low, the effect is remarkable, and it is easy to popularize.

Description

technical field [0001] The invention relates to a crop continuous cropping obstacle regulator containing fatty acid. Background technique [0002] Vegetable production in my country has developed extremely rapidly, but there is a serious tendency to emphasize quantity over quality. According to the statistics of the Ministry of Agriculture, in 2002, the sown area of ​​vegetables nationwide was about 17 million hectares, and the total output could reach 520 million tons, of which 4.5 million tons were exported, accounting for only 0.86%. The main reason is that the quality of vegetables is difficult to meet export standards. At present, the national vegetable protection area has reached more than 1.2 million hectares, of which about 350,000 hectares are solar greenhouses. The scale, specialization and industrialization of vegetable production lead to continuous cropping obstacles in some areas, which is an important reason for the significant decline in vegetable yield and q...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05D11/00C09K17/00C09K17/32
Inventor 阮维斌陆文龙王敬国高玉葆
Owner NANKAI UNIV