Rice is one of the main foods in China, especially in the south. Rice is mainly used as a staple food. It is conceivable that China's demand for rice is enormous; of course, rice is grown in the south and north, and everyone is here to explain late rice. Planting techniques.

1. Variety selection. According to the market demand, high-quality varieties of high-quality varieties that have been approved or certified by the Crop Variety Approval Committee will be selected according to local conditions. Regular high quality rice seeds are required to be replaced annually. According to the requirements of industrial development, one place is planted. If you buy seeds, you must go to a regular seed store. You can't believe in informal businesses.

2. Soaking seeds, germination, seed selection, soaking, disinfection and germination are equivalent to conventional rice varieties.

3. Raising methods. The nursery was cultivated by the method of moist breeding, and the two-stage breeding was carried out for more than 35 days.

4. Sowing period and transplanting period. The sowing date is determined by the safety of the same as the standard. The safe and clear ear of Xiangbei is before September 10, the middle of Hunan is about September 15, and the east of Xiangdong and Xiangnan are before September 20. Sowing date: early maturing varieties should be from June 18th to 26th, medium-maturing varieties from June 15th to 22nd, late-maturing varieties in mid-June, and special late-maturing varieties from June 10th to 15th, within this range of Xiangbei It should be early, Xiangdong, and Xiangnan should be late. The early maturing varieties are within 28 days of age, and are planted from July 18th to 22nd. The mid-maturing varieties are 30 days to 35 days old, and the late-maturing varieties are not more than 35 days old. If they are more than 35 days old, they are cultivated in two stages.

5. Field cultivation

1 transplanted. According to the tillering characteristics of different varieties, determine the appropriate basic seedling number. Generally, the high-quality late rice transplanting plant using wet alfalfa transplanting is 20 cm × 20 cm, or preferably wide and narrow row transplanting, that is, wide row spacing and narrow Line spacing is interplanted, the specification is 16.7 cm × (16.7 cm + 33.3 cm), that is, about 6,000 square meters per 667 square meters, and the basic seedlings are 80,000 to 100,000 seedlings, of which the hybrid high quality late rice is inserted every 667 square meters. Wan Miao ~ 80,000 seedlings. In the dry nursery, 70,000 seedlings to 80,000 seedlings are planted per 667 square meters, and 50,000 square meters to 60,000 seedlings per 667 square meters of hybrid high quality late rice.

2 fertilization. Based on organic fertilizer, the base fertilizer is applied, the fertilizer is applied again, and the seed fertilizer is applied. The panicle fertilizer is not applied at the beginning of the young panicle differentiation or at the jointing stage. The specific fertilization amount is: 1000 kg to 1500 kg of farmyard manure per 667 square meters of base fertilizer, 40 kg of ammonium bicarbonate and phosphate fertilizer, 5 days to 7 days after transplanting, combined with chemical weeding, 3 kg of urea per 667 square meters. ~ 4 kg, potassium fertilizer 5 kg ~ 8 kg for the split fertilizer: premature senescence field beginning and ear stage every 667 square meters with a grain of 1 package (50 grams) spray 50 kg of water. It can also apply 35% of rice special compound fertilizer 50 kg per 667 square meters. It can be applied in one layer at the same time before transplanting. It can also use urea, ammonium sulfate, superphosphate, ammonium phosphate and potassium chloride. Fertilizer is applied in combination. The application rates of pure nitrogen, phosphorus pentoxide and potassium oxide per 667 square meters are 9 kg to 10 kg, 4 kg to 5 kg and 7 kg to 8 kg, respectively. Nitrogen and potassium fertilizers are used as base fertilizers of 60% to 70%. Phosphate fertilizer is used as the base fertilizer. In the Lake District, it is recommended to harvest the ear and use straw to return to the field for organic fertilizer.

3 water slurry management. Irrigation technology should be based on water conditioning, water conditioning, gas rooting, rooting and leaf protection. It is advisable to use shallow water to return to green and wet tillering measures. High-quality late-season rice starts from 12 days to 15 days after transplanting, and when the number of seedlings per 667 square meters reaches 80% to 90% of the planned number of panicles, the field is exposed or sun-dried, and two or three times of light rest is used.坼, after the differentiation of the young panicles, the water is kept and the shallow water layer is maintained. The water is spiked, the seeds are wet and wet, and the wet and mature are maintained in the later stage. Water is cut off about 7 days before harvest, and it is forbidden to cut water too early.

4 weed control. The application rate and application period should be carried out according to the different methods of use depending on the type of herbicide.

5 pest control. The application period is based on the forecast of pests and diseases of the local agricultural technology department.

6. Harvesting. From 35 days to 45 days after the heading, the maturity is about 95% for the harvest. It is necessary to divide according to the variety, and divide it into sun and store it.

The above detailed introduction to everyone introduced the selection of late rice to management to harvest, hoping to help the rice farmers.

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