Composite seed soaking agent for direct-seeding rice and its preparation method, use method and application
A seed soaking agent and extraction technology, which is applied in the field of seed soaking agent and rice seed soaking agent, can solve the problems of increasing soil fertility, reducing the amount of weeds, weed weight, etc., and achieve the effect of eliminating negative effects and expanding the scope of planting
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Embodiment 1
[0040] Preliminary Example 1 Preparation of Barnyardgrass Extract
[0041] Take 20g of barnyardgrass seedlings after air-drying, cut a 1-2cm section with scissors, add to 500ml of water, soak at room temperature for 3 days, filter out the insoluble matter, take the filtrate to obtain the barnyardgrass extract stock solution, refrigerate for later use.
Embodiment 2
[0042] Preliminary Example 2 Preparation of Barnyardgrass Extract
[0043] Take 20g of air-dried barnyardgrass seedlings, crush them into coarse powder, add them to 400ml of water, soak at room temperature for 4 days, filter out the insoluble matter, take the filtrate to obtain the barnyardgrass extract stock solution, and refrigerate for later use.
Embodiment 3
[0044] Preliminary Example 3 Preparation of Barnyardgrass Extract
[0045] Take 20g of air-dried barnyardgrass seedlings, use scissors to cut small sections of about 1-5cm, add them to 600ml of water, soak at room temperature for 5 days, filter out the insoluble matter, take the filtrate to obtain the barnyardgrass extract stock solution, refrigerate for later use.
[0046] Example 1 Preparation of direct seeding rice compound seed soaking agent
[0047] Weigh the ingredients according to the following mass (unit: g): paclobutrazol 20.0, calcium diphenylurea sulfonate 10.0, and pyrethamine 0.2; add the above ingredients to ethanol (ethanol content ≥95%) to make up the ethanol to 100g , Stir thoroughly, and get it.
[0048] Example 2 Preparation of direct seeding rice compound seed soaking agent
[0049] Weigh the ingredients according to the following mass (unit: g): paclobutrazol 18.0, calcium diphenylurea sulfonate 10.0, and pyrethroid 0.2; add the above ingredients to ethanol to mak...
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