Use herbicides should be selected after dry dew on sunny days, use 25% herbicide ether 500-600 grams per acre, or 25% herbicide ether 300 grams plus 500 mg of pentachlorophenol sodium, or 50% herbicide dandelion 250-300 grams. Wet fine soil 15 kg mix well, piled up for a long time, then evenly spread into the rice field, and spray a new high-fat film 800 times liquid to protect the efficacy, while paying attention to the field within 1 week do not drain, keep the water depth 3 ~ 6 cm. For the weeds such as striata, ragweed, and wild sage, use 70% of dimethyl tetrachloride per mus, 75 to 100 grams of water, 40 kg of water, and add 800 times of solution of new high-fat membrane to drain the rice water. Spray for two days, and then refill the water every other day after spraying.
After half a month of transplanting, it is easy to grow malignant weeds such as rice leaf grass (also known as bamboo grass). When it grows 3 to 5 leaves, use 50% of the grass to use 40 to 50 grams per acre, add 15 kg of moist fine soil, and apply it to maintain a water depth of 3 to 6 cm for 7 days. The effect is better and at the same time The yield of rice can be applied to the germination of the crops at the booting stage of rice, which can enhance the physiological functions of crops, improve the quality of pollination, insemination and grouting, and increase the 1000-grain weight.
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