Chioligose plant growing agent 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 improve plant resistance Disease resistance, improvement of product quality, and root system development
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Embodiment 1
[0029] The preparation of chitosan oligosaccharide plant growth agent:
[0030] Dissolve 100g of chitosan (N-amino-D-glucan) in 2.5L of 2% acetic acid aqueous solution, add 10g of α-amylase under stirring, react at 50°C for 6h, heat at 95°C for 15min, 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 chitosan oligosaccharide acetate solution 2.5L, stir for 10min, add surfactant triton to make its content 0.1%, stir 10min.
Embodiment 2
[0032] Effect of Chitooligosaccharide Plant Growth Agent on Cucumber Growth and Yield:
[0033] 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.
[0034] After the cucumber seedlings were treated with the chitosan oligosaccharide plant growth agent, the fruiting period of the...
Embodiment 3
[0060] The effect of chitosan oligosaccharide plant growth agent on the growth and yield of lettuce:
[0061] 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.
[0062] 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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