Novel method for prevention and control of older rice barnyard grass in paddy rice fields
A paddy field and new method technology, applied in botany equipment and methods, herbicides and algicides, chemicals for biological control, etc., can solve the problems of high drug input costs, rice and soil pollution, and rice safety Low-level problems, to achieve the effect of reducing resistance and the frequency of weeds, reducing residual activity, and expanding the range of herbicides
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Embodiment 1
[0055] Such as figure 1 As shown, the new method for preventing and controlling barnyardgrass of paddy fields provided by the embodiment of the present invention includes:
[0056] S101: Take 70 grams of 30% barnyard phosphorus, add 50-70 grams of 50% quinclorac suspending agent or wettable powder, mix with 70-100 ml of super high-efficiency spray adjuvant, and use it on barnyard grass with a plant height of 15-30 After removing the water layer or keeping it dry naturally, use a knapsack electric sprayer or a plant protection drone to spray.
[0057] S102: The amount of liquid sprayed per mu (667 square meters) is 10-12 kg / mu.
[0058] S103: Return to normal water management about 36 hours after spraying, use fan-shaped nozzles during operation, and the spray droplets are fine and even.
[0059] The formula of the present invention not only controls old barnyardgrass and rice barnyardgrass, but also controls perennial deep-rooted vicious weeds "reeds" in paddy fields. The c...
Embodiment 2
[0061] The new method for preventing and controlling barnyardgrass of older rice in paddy fields provided by the embodiments of the present invention includes:
[0062] Take 70 grams of 30% barnyard phosphorus, add 50% quinclorac suspension concentrate or wettable powder 50-70 grams;
[0063] Mix 70ml of super-high-efficiency spray adjuvant, and spray after the barnyardgrass plant height is 15-30 cm, remove the water layer or keep it dry naturally; the spray volume is 10-12 kg / mu.
[0064] Return to normal water management 36 hours after spraying.
Embodiment 3
[0066] The new method for preventing and controlling barnyardgrass of older rice in paddy fields provided by the embodiments of the present invention includes:
[0067] In barnyardgrass or rice barnyardgrass with a plant height of 15 cm and at the 5th leaf stage, take 50 grams of 30% barnyard phosphorus, 60 grams of 50% quinclorac suspension concentrate or wettable powder, and a special mixture of alkyl ethyl sulfonate. High-efficiency spray adjuvant 70ml mixed;
[0068] After the barnyardgrass plant height is 15 cm, remove the water layer or keep it dry naturally, and then spray.
[0069] The amount of liquid sprayed is 10 kg / mu per mu; normal water management will resume 36 hours after spraying.
[0070] In normal water management, the water layer is 3 cm, and the water retention layer is 7 days.
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