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A kind of hydroponic rooting method of cutting seedlings of medicinal industrial hemp

A technology of industrial hemp and hydroponic rooting, applied in botany equipment and methods, agriculture, cultivation, etc., can solve the problems of high cost, environmental pollution, etc., and achieve the effect of high rooting rate, simple management, and short rooting time

Active Publication Date: 2021-09-28
云南省农业科学院经济作物研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of high cost and environmental pollution of the current rooting culture method of nutrient solution cutting seedlings, the present invention provides a method for hydroponic rooting of medicinal industrial hemp cutting seedlings

Method used

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  • A kind of hydroponic rooting method of cutting seedlings of medicinal industrial hemp
  • A kind of hydroponic rooting method of cutting seedlings of medicinal industrial hemp
  • A kind of hydroponic rooting method of cutting seedlings of medicinal industrial hemp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step A. Use a special hydroponic device to cultivate medicinal industrial hemp cuttings to take root, respectively fill the hydroponic liquid in the upper tank 2 and the lower tank 3 of the special hydroponic device, and insert the cuttings into the upper tank 2 floating on the water surface. The planting hole 8 of the foam board 1 is used to immerse the lower part 2cm-2.5cm of the cuttings in the hydroponic solution. The cuttings are selected to have semi-lignified or lignified stalks of 8-15cm long before the medicinal industrial hemp blooms. The top leaf spikes of main branches, or the 8-15cm long top leaf spikes of side branches with semi-lignified or lignified stalks, and the top leaf spikes of main branches or the top leaf spikes of side branches are pruned, and the pruning is the top leaves of main branches The ear or the top leaf ear of the lateral branch only retains the ear tip and 1 to 2 leaves, and cuts off half of each leaf; the hydroponic solution is tap wa...

Embodiment 2

[0040] Under the same hydroponic environment conditions described in step B of Example 1, the submersible pump is turned on, the distance between the pumping holes is 20cm, and the distance between the planting holes is 6cm. See Table 2 for the effects of liquid selection on the rooting of medicinal industrial hemp cuttings.

[0041]Table 2 The influence of different hydroponic solutions on the rooting of medicinal industrial hemp cuttings in hydroponic devices with optimal parameters

[0042]

[0043] The data in Table 2 show that there is no significant difference between the use of tap water, sterilized water or distilled water under the optimal parameter conditions of the dedicated hydroponic device.

Embodiment 3

[0044] Example 3: Use a special hydroponic device with the best parameters, use tap water as the hydroponic liquid, and spray the hydroponic liquid 4 to 6 times on the leaf surface every day during the day, with an interval of 1 to 2 hours each time, to investigate the effect of air temperature and water temperature on the water. See Table 3 for the influence of medicinal industrial hemp cuttings on rooting.

[0045] Table 3 Effects of air temperature and water temperature on the rooting of medicinal industrial hemp cuttings

[0046]

[0047] The light of each experiment in Table 3 is natural light, and the cutting seedlings are irradiated with natural astigmatism during the day, and direct sunlight is avoided for the cutting seedlings.

[0048] The data in Table 3 shows that higher air temperature and water temperature are conducive to the rooting of medicinal industrial hemp cuttings. The best environmental conditions are that the temperature is 25-35°C, the water temper...

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Abstract

The invention discloses a hydroponic rooting method for medicinal industrial hemp cutting seedlings. A special hydroponic device including upper and lower nested water tanks, submersible pumps and foam boards is used. Tap water, sterilized water or distilled water is used as the hydroponic fluid. The submersible pump must be in working condition during the rooting process of cuttings; Before the flowering of industrial hemp, the semi-lignified or lignified 8-15cm main branch or the top leaf ear of the side branch is used as a cutting, inserted into the planting hole on the foam board, and the lower part of the cutting is immersed in the hydroponic solution; Cultivation environment conditions: air temperature is 25-35°C, water temperature is 20-25°C, the light is natural light, and the cutting seedlings are irradiated by natural astigmatism during the day; the leaves are sprayed with hydroponic liquid 4-6 times during the day every day to maintain the humidity of the leaves, and the present invention does not use chemical The roots of cutting seedlings can grow to more than 10cm in 12 to 22 days, and the rooting rate of cuttings can reach 100%. The hydroponic liquid does not need to be replaced midway, and the cost is low, and it is green and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of cutting propagation of industrial hemp, and relates to a hydroponic rooting method for cutting seedlings of high-quality medicinal industrial hemp. Background technique [0002] Medicinal industrial hemp is an agricultural variety artificially bred from the annual herbaceous plant Cannabis genus of the Cannabis family. The content of tetrahydrocannabinol (tetrahydrocannabinol, THC) in the plant is less than 0.3% (in dry matter). ), can not be directly used as drugs, but rich in cannabidiol (cannabidiol, CBD), cannabidiolic acid (CBDA), tetrahydrocannabinolic acid (THCA), cannabinol (CBN), cannabidiol (CBDV ) and other cannabinoids. Clinical studies have found that such ingredients have anti-epilepsy, nervous system protection and other effects. Especially CBD, there are now 2 commercial drugs with its main ingredients on the market in the United Kingdom, Canada and other countries. and new drugs It ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00A01G22/00A01G2/10
CPCA01G31/00A01G2/10A01G22/00
Inventor 郭孟璧杨明郭鸿彦陈璇许艳萍张庆滢郭蓉吕品
Owner 云南省农业科学院经济作物研究所
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