First, weeding of rice field herbicides. To eradicate weeds in paddy fields, herbicides should be applied in a timely manner to rice paddies, save labor (free cultivator) to save money (about 2 yuan per acre drug money), and can solve the growth of weeds and rice seedlings compete for light constrain the normal growth and development of rice seedlings Contradictions. The specific approach is: after inserting 5-7 days per acre with straw 20 grams or 60-100 grams of butyl benzyl mixed urea (combined top dressing), fine sand or dry powder 30-40 kg dry in the dew after the applicator to be Keep shallow water for 4-5 days. Second, do scientific fertilization. More than 70% of the late rice in our province is hybrid rice. The number of original seedlings is less, more than half of them are cast seedlings, and the pod period is short and thick. Therefore, early application of leaf fertilizer should be applied, and urea should be applied for 5-7 days per acre. - 25 kg; timely application of strong Zhuangye Fei, 15-20 days after planting per acre applied compound fertilizer 10-15 kg (or urea 20 kg, 25 kg of potassium chloride). Before and after the autumnal equinox, it is best to apply 100-150 pounds of lime powder per acre, which can enhance the resistance to insects. From late September to the beginning of October, about 10 pounds of compound fertilizer in Mushi was used as a strong tire fertilizer and strong grain fertilizer. Third, timely and reasonable irrigation and drainage. Although the rice needs more water during its growing period, its normal physiological requirements are not only afraid of drought but also scars. Therefore, it is imperative to maintain shallow irrigation, avoid leaching, and promote rice plants after transplanting till the flood season. As soon as possible, it grows fast and grows strong. Afterwards, it keeps the field moist. In deep-seated high-yield rice fields, we must also focus on the middle- and late-season fields, and maintain the shallow surface water layer during the ten days before heading to meet the water requirements for booting and heading. Afterwards, the land surface water layer will be discharged to keep the soil wet. Fourth, strengthen the prevention and control of pests and diseases. First of all, we must earnestly conduct in-depth field investigations and researches to do a good job in forecasting and forecasting work. In particular, for those areas where pests and diseases have been recurring historically, we must do timely, continuous, and thorough treatment if we find that diseases and insect pests are injurious. For the newly introduced new varieties of rice, we must also carefully observe the resistance to diseases and insect pests. The disease caused by late rice is mostly sheath blight. From the peak of tillering to the period of young ear formation, in case of high temperature and continuous rain, the relative humidity in the field is large, and the rice field with dense growth is prone to this disease. If it is found to promptly spray 1% Jinggangmycin 1 pound of water 200-300 pounds or 50% of thiophanate WP 1000 times the liquid spray, such as a serious 5-7 days and then spray once. In terms of insect pests, S. bungei and S. japonica have occurred only in individual years and in individual regions, and the most common one is rice leaf roller. It mostly occurred in late September to early October. It damaged the flag leaves and the top two or three leaves. When the damage was severe, it not only affected the normal heading and flowering, but also led to an increase in grain size and reduced grain weight, affecting the yield. Great. The disease can be sprayed with 18% of insecticidal water-repellent agent, 40 grams per acre of water, 100-120 kg of water, or 90% crystals of trichlorfon, 1000-1000 mu of spray, 150-200 kg. It is best to spray in the evening, within six hours after spraying. Rain should be sprayed as early as possible.
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