At the crucial moment when live late rice emerges seedlings and seedlings, due to the high chance of late-season live broadcast of cold dew-borne winds, it is particularly important to improve the management of live late rice in the field.
Sheung Shui seedlings. Where live rice fields have been sown and are not sown, morning water is required. Paddy fields with more than 2 leaves have been established, and shallow water layers should be used to create continuous water. Paddy fields that are emerging and have a leaf age of less than 2 leaves can be treated with thin water and intermittent irrigation to keep the soil moist and moist, and dry soil must not be allowed to dry. .
Timely fertilization. Where live rice fields with more than 2 leaves are in time for watering, Mushi applies 5-7.5 kg of urea, no potassium fertilizer is applied to the field, and 5-7.5 kg of potassium chloride fertilizer is supplemented. In the period of 3-4 leaf stage of rice seedlings, 10-12.5 kg of urea was used for promoting manure.
In addition to miscellaneous For freshly sown fields that have not been weeded, weed herbicides should be used to weed them with larvae and young plants within 2-4 days; in the 2-leaf stage of rice seedlings, we should promptly irrigate water to establish a shallow water layer to suppress the grass with water; In the leafy stage, many grassy fields were selected for herbicides such as Shuangchao, Tiancaoling, Qianjin, and Daojie. In addition, the seedlings in the direct broadcast rice field will be filled in time to ensure the seedlings are strong.
Pest control. Requires live late rice to control SBPH at the heart of 2 leaves. It needs to be controlled twice consecutively. It uses 25% pymetrozine (flying electricity) 16 grams per gram + 40% chlorpyrifos (New Nongpo) 50 ml plus three bags of water. Spraying. To prevent the occurrence of stripe blight and black streaked dwarf disease, while picking a rule for the second generation of insecticide, pesticides can be used 21% fluorozolium phosphorus 80 ml, such as the previous black tail leaf more than the plots, plus 10% per acre 50 grams of imidacloprid control.
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