In recent years, some farmers in the Yangtze River region have planted cotton as a food crop, but due to water problems, most farmers have planted upland rice. In order to capture the high yield of upland rice, farmers are advised to pay attention to the following points:
Good ground, apply fertilizer. Before the preparation of the ground, apply 45% (15-15-15) ternary compound fertilizer 20-30 kg per acre, urea 5-10 kg, zinc 1-2 kg and mix well and spread evenly. Organic fertilizer or farmyard manure can also be applied.
Sowing early, open a ditch. Sowing in time or before the rain, after sowing, according to the width of 畦 3-5 meters, use the ditch pear to open a depth of 18-25 cm to facilitate irrigation and drainage. Seeding for 1-2 days before planting, and promoting the treatment of seeds with chemicals. Sowing is usually from late May to early June. The seeding amount of mu is 4-6 kg, and the sowing depth is 2-3 cm. Can be broadcast, broadcast, on-demand.
Suitable for topdressing and nourishing nutrition. Generally, 8-12 kg and 4-6 kg of urea are applied in the 3-5 leaf stage of rice seedlings and before and after the initial spike, and the remaining period of seedlings should be supplemented or exempted from application, and the late fattening should not be excessive. In the area of ​​phosphorus-deficient potassium, 5-10 kg of potassium chloride may be applied before the jointing, or potassium dihydrogen phosphate may be sprayed at the booting-heading stage. If zinc deficiency occurs, the zinc sulfate should be sprayed 1-2 times.
Hit the closed, except the grass. The control of weeds in direct seeding rice fields is mainly based on “soil closureâ€, supplemented by “post-emergence treatmentâ€, combined with manual weeding. The soil-enclosed commercial high-efficiency herbicide is usually mixed with butachlor and oxaloin 45 kg (wetland)-75 kg (dry ground), sprayed before the sowing, so that the spraying is uniform, no leakage, the surface has passed When dry and rough, it is necessary to increase the amount of water to be properly applied. It is necessary to spray it during the early morning to early morning. It is strictly forbidden to apply the medicine around noon on sunny days. After the seedling is removed, the selective herbicide is applied according to the species of the weeds after the emergence of the rice to the tillering stage. Annual grasses weeds are mainly used for valerian, such as dichloroquinic acid, rice sap, etc.; horse-based, Han Qiuhao, etc.; thousands of gold-based, thousands of gold, cyanide, etc.; Broad-leaved grasses, sedges such as sedges and sedges, such as bentazone, bensulfuron-methyl, and metformin. Any of the herbicides of the above-mentioned grass-killing grasses can be applied in combination with any herbicide which kills broadleaf grasses in an appropriate ratio, and can kill both types of weeds at the same time.
Watering, waterproof stains. The rice grown in wheat and rapeseed is required to be irrigated 2-4 times in a lifetime, generally lasting 10-15 days in the clear field without rain, 5-7 days from the booting to the heading stage, 8-10 days in the jointing and filling period, ie timely watering 1 time. If the lyrics are insufficient after the sowing, and there is no rainfall, it is advisable to fill the water in time to benefit the whole seedling. Properly increasing the number of irrigations or continuing the humidness in the field is conducive to increasing the yield. In the dry year, the number of irrigations and the amount of irrigation should be appropriately increased, and the water layer should be immersed in the field.
Prevent pests and diseases, promote yellow ripening. The types and hazards of pests and diseases after emergence and the control methods of the pesticides are basically similar to those of the same season rice. Pay attention to the control of rice locust, rice leaf roller, sheath blight, etc., in the middle and late August to early-earning, avermectin + chlorpyrifos + imidacloprid + Jinggangmycin or rice blast + pyridoxine + Love seedlings control rice leaf roller, rice planthopper, rice sheath blight, and cure rice false disease.
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