Chioligose plant grow-promotor and its preparation method

A technology of plant growth agent and chitosan oligosaccharide, which is applied in the direction of plant growth regulators, botany equipment and methods, biocides, etc., can solve the problems of soil compaction, crop yield and quality decline, environmental pollution, etc., and achieve soil microorganisms and Significant enzyme activity, improved product quality, bright fruit effect

Inactive Publication Date: 2004-01-28
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to long-term large-scale application, many negative effects are caused, such as soil compaction, crop yield and quality decline
The vast majority of existing plant growth agents (such as hormones, ABT rooting powder and Gao Shimei, etc.) are chemical compounds, which will cause certain pollution to the environment when they are used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of chitosan oligosaccharide plant growth agent:

[0027] Dissolve 100 g of chitosan (N-amino-D-glucan) in 2.5 L of 2% acetic acid aqueous solution, add 10 g of α-amylase under stirring, react at 50°C for 6h, heat at 95°C for 15min, and slightly Filter to make chitosan oligosaccharide acetate solution; in 2.5L 10% compound amino acid mother liquor, add micronutrient iron, zinc, copper, molybdenum, boron, calcium, magnesium salt, prepare each micronutrient content as 100 μ g / L solution, add complexing agent disodium edetate 150g, stir for 10min, then add chitooligosaccharide acetate solution 2.5L, stir for 10min, add surfactant triton to make its content 0.1%, stir 10min.

Embodiment 2

[0029] Effect of Chitooligosaccharide Plant Growth Agent on Cucumber Growth and Yield:

[0030] When the cucumber grows to 2 true leaves, the seedlings are planted in the matrix tank for soilless cultivation. Seedling growth was inhibited due to the invasion of cold air on the day of planting and the next day. When the cucumber seedlings grow to 3-4 true leaves, spray the chitosan oligosaccharide plant growth agent diluted 500 times on the leaves until the droplets drip down the leaves. Spray every other week and repeat three times. For cucumber seedlings that have not been treated at the seedling stage, when the plants enter the flowering and fruit-setting stage and the number of true leaves is about 10, they are sprayed with a 500-fold diluted chitosan oligosaccharide plant growth agent, sprayed once every other week, and repeated three times.

[0031] After the cucumber seedlings were treated with the chitosan oligosaccharide plant growth agent, the fruiting period of the...

Embodiment 3

[0040] The effect of chitosan oligosaccharide plant growth agent on the growth and yield of lettuce:

[0041] Lettuce colonization slow seedlings, when the seedlings grow to 3-4 true leaves, spray the chitosan oligosaccharide plant growth agent product diluted 500 times on the leaf surface until the droplets drip down the leaf surface. There are three groups of treatment, clean water control and blank control, each group is repeated three times, and the area of ​​each plot is 15m 2 , the spacing between plants and rows is 18cm×20cm, and 400 plants are planted in each plot. Spray once every 10d and repeat four times.

[0042] Blank and treated lettuce growth showed that there was no significant difference in growth after the first treatment, but after two treatments, the growth of lettuce treated with chitosan oligosaccharide plant growth agent was significantly stronger than that of water treatment and blank control. The plants treated with the chitosan oligosaccharide plant...

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PUM

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Abstract

The invention discloses a plant growing promoter and the preparing method. It comprises chitlsan oligosaccharide, compound amino acid, micro nutritious element, complexing agent, surface active agent, etc. It can promote plant growth, activate plant cell, strengthen abilities of plant antivirus and pathogenic germs, strengthen plant anti-contradictoriness, promote plant to absorb nutrient, and improve the quality and output of the crop, besides without pollution.

Description

technical field [0001] The invention relates to a plant growth agent and a preparation method thereof, in particular to a plant growth agent containing chitosan oligosaccharide and a preparation method thereof. Background technique [0002] Modern scientific research shows that plants not only absorb nutrients through their roots, but also directly absorb them from leaf and stem cells. Applying foliar fertilizers to crops allows faster and selective crop nutrient replenishment. Liquid fertilizers applied to crops, such as foliar fertilizers, trace element liquid fertilizers, amino acid liquid fertilizers, etc. These fertilizers are superior to traditional organic fertilizers and single chemical fertilizers in some aspects. However, long-term large-scale application brings many negative effects, such as soil compaction, crop yield and quality decline. The vast majority of existing plant growth agents (such as hormones, ABT rooting powder and Gao Shimei, etc.) are chemical c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16
Inventor 张文清夏玮金鑫荣张元兴
Owner EAST CHINA UNIV OF SCI & TECH
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