Cultivation techniques of No-tillage and dry Direct seeding of Rice

(1) Paddy fields that were previously used as rice without ploughing were selected for no-tillage, dry and direct seeding cultivation. Fields with many malignant weeds and heavy stickiness are not suitable for no-tillage cultivation. (2) 4-6 days before weed treatment and sowing, choose sunny or cloudy days with a temperature above 15 degrees. Use 10% glyphosate 2 kg + 20% "g without trace" 100 ml of water 60 kg (four cylinders of water) per mu, add another tablespoon of washing powder to each barrel of water, and spray to control weeds. If it rains within 4 hours after spraying, make up the spray, otherwise the weeding effect is not good. (3) to prepare the land and raise the bed, the sowing ditch shall be 3.5-4 meters wide and the working ditch shall be 30 cm wide and 15-20 cm deep. After leveling the border, open the sowing ditch 4'5 cm deep according to the row spacing of 18 cm. (4) after sowing and soaking seeds to accelerate germination, the seeds are mixed with seed coating agents such as "dry nursery nanny" and pesticides such as "methyl isomaliphate" before sowing. The seeds were sown in the sowing ditch by the way of on-demand sowing, and the seed amount per mu was 3: 3.5 kg for conventional rice and 1.5 kg for hybrid rice. After sowing, 15 kg of compound fertilizer containing 15% of nitrogen, phosphorus and potassium per mu was mixed with 500 kg of farm fertilizer as base fertilizer. Return to the soil to cover after sowing and fertilizing. (5) Field management techniques for no-tillage and dry direct seeding field management, except for paying special attention to the control of weeds, other technical measures for field management are basically the same as those for dry direct seeding.