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A method for defoliation of cannabis, defoliant and application thereof

A technology of defoliant and hemp, applied in application, botany equipment and method, biocide, etc., can solve the problems of inconvenient use, large amount of magnesium chlorate, high toxicity, etc.

Active Publication Date: 2019-06-04
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the consumption of magnesium chlorate is big (need to use 28 kilograms of 60% magnesium chlorate per hectare), toxicity is also bigger, it is convenient not to use

Method used

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  • A method for defoliation of cannabis, defoliant and application thereof
  • A method for defoliation of cannabis, defoliant and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Under stirring, add 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspending agent with an effective content of 45% to the water to produce a uniform spray liquid. The dosage of 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspension is 200mL / mu, and the water consumption is 120L / mu.

[0048] Spray the prepared spray liquid on the hemp whose maturity period is close to harvest (about two weeks before harvest), and evaluate the defoliation effect of the hemp two weeks later, wherein:

[0049] 0% = no discernible effect compared to untreated plants;

[0050] 100% = all leaves are shed.

Embodiment 2

[0052] The cannabis is treated with reference to the method described in Example 1. The difference is that the amount of the 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspension is 45 mL / mu.

Embodiment 3

[0054] The cannabis is treated with reference to the method described in Example 1, except that the dosage of the 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspension is 1000 mL / mu.

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Abstract

The present invention relates to a method for defoliation of cannabis, a defoliant and application thereof. The method for defoliation of cannabis in the present invention includes applying 2-chloro-4-ethylamino-6-isopropylamino- 1,3,5-triazine, the application rate of said 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine is 20~450g active substance / mu, preferably, 90g active substance / mu. The method of the invention has the advantages of high efficiency, low toxicity, no damage to the quality of the hemp fiber, and less dosage, economical and practical.

Description

Technical field [0001] The present invention relates to the field of defoliants, in particular to a method for defoliating cannabis, defoliants and applications thereof. Background technique [0002] Cannabis, the Latin scientific name is Cannaabis Salival, the common name is hemp, cold hemp, thread hemp, flower hemp, etc., and the English name is hemp, true hemp or common hemp. It belongs to the annual herbaceous crop of the genus Cannabis in the cannabis family. The stem of hemp is 1 to 5 meters high. The center of the stem is lignified and surrounded by a layer of bast. It contains many fibers. The leaves are divided into palms and consist of 5 to 11 lobed leaves. The serrated lobed leaves are about 50mm~150mm. Length, 10mm~20mm width. Hemp fiber can be used to spin hemp fabrics, make fishing nets, ropes, twine, mats, etc. It is also the first choice for the manufacture of modern cigarette paper and even banknotes. [0003] In modern times, because marijuana contains tetrahydr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/70A01N37/26A01N47/36A01N41/10A01N39/04A01P13/00
CPCA01N37/26A01N39/04A01N41/10A01N43/70A01N47/36
Inventor 邱财生王玉富郭媛龙松华王慧郝冬梅钟国乾范志芳
Owner INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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