Method of defoliating hemp, defoliating agent and application of defoliating agent
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A technology of defoliant and hemp, applied in application, botany equipment and method, biocide, etc., can solve the problems of large amount of magnesium chlorate, high toxicity, and inconvenient use
Active Publication Date: 2018-01-19
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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And the consumption of magnesium chlorate is big (need to use 28 kilograms of 60...
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Embodiment 1
[0047] In a stirring state, 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspension concentrate with an effective content of 45% is added to water to produce a uniform spray liquid, wherein, The dosage of 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspending agent is 200mL / mu, and the dosage of water is 120L / mu.
[0048] The prepared spray liquid is sprayed on the hemp whose maturation period is close to harvest (about two weeks before harvest), and evaluates the defoliation effect of the hemp after two weeks, wherein:
[0049] 0% = no discernible effect compared to untreated plants;
[0050] 100% = all leaves fell off.
Embodiment 2
[0052] Referring to the method described in Example 1 to process cannabis, the difference is that the dosage of the 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspending agent is 45 mL / mu.
Embodiment 3
[0054] Referring to the method described in Example 1 to process cannabis, the difference is that the dosage of the 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine suspending agent is 1000mL / mu.
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Abstract
The invention relates to a method of defoliating hemp, a defoliating agent and application of the defoliating agent. The method of defoliating hemp comprises the following steps: before hemp harvest,applying 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine, wherein the dosage of the 2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine is 20-450g of active substances per mu, preferably 90g of active substances per mu. The method provided by the invention has the advantages of high efficiency, low toxicity, no impairment to hemp fiber quality, small dosage and economical and practical properties.
Description
technical field [0001] The invention relates to the field of defoliants, in particular to a method for defoliating cannabis, a defoliant and applications thereof. Background technique [0002] Cannabis, Latin scientific name Cannaabis Salival, common name hemp, cold hemp, thread hemp, flower hemp, etc., English name hemp, true hemp or common hemp, belongs to the cannabis family Cannabis genus annual herbaceous crops. Hemp stems are 1-5 meters high, the center of the stem is lignified, surrounded by a layer of bast, which contains many fibers, and the leaves are palmately split, consisting of 5-11 lobed leaves, and the serrated lobed leaves are about 50mm-150mm Length, 10mm ~ 20mm width. Hemp fiber can be used to weave hemp fabrics, make fishing nets, ropes, twine, and warp, etc. It is also the preferred raw material for making modern cigarette paper and even banknotes. [0003] Since modern times, because cannabis contains tetrahydrocannabinol (THC), which has been widely ...
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