Main cultivation techniques of New late Japonica Rice Variety Ning 88

1. Sow strong seedlings sparsely and transplant them at the right time. For single-season late rice cultivation, the sowing period is June 5-15, the seed amount per mu is 2.5- 3.0 kg, the seedling field seeding amount is 30kg per mu, and the seedling age is 25 days; for continuous late rice cultivation, the sowing period is June 25-30. The seed amount per mu is about 3.0 kg, the seedling field seeding amount per mu is 25-30kg, and the seedling age is about 25 days. For continuous late machine transplanting or seedling throwing cultivation, the seed amount per mu is 3.0- 4.0 kg, the seeding amount per mu is 35-40kg, the seeding is carried out on July 5-10, and the seedling age is 15-20 days.

2. Plant evenly and densely, and insert basic seedlings. For single-season late rice cultivation, 18,000 - 20,000 clusters are planted per mu, and the basic seedlings are 60,000 - 80,000; for continuous cropping late rice cultivation, 20,000 - 24,000 clusters are planted per mu, and the basic seedlings are 80,000 - 100,000.

3. Apply sufficient base fertilizer, early topdressing and proper ear fertilizer. The total fertilizer application rate per mu is 12-14kg of pure nitrogen in single season, 10-12kg in double season, 25kg of calcium superphosphate and 7.5- 10.0 kg of potassium chloride. According to the growth of seedlings, proper ear fertilizer should be applied to enlarge ear type and give full play to the advantage of big ear.

4. Scientific slurry management. After planting, irrigate and support seedlings, irrigate with shallow water after returning green, and then put aside the field to control seedlings when tillers reach more than 90%, so as to achieve strong tillers and promote roots. After heading, dry and wet alternate, irrigation running horse water, avoid water cut too early, so as to facilitate grain filling, to achieve green and yellow culms, live culms to old.

5. Do a good job in pest control. Ning 88 has large panicle type and high grain density, and attention should be paid to preventing rice false smut and rice blast before and after the beginning of panicle. Jinggangmycin 150g and tricyclazole 100g per mu can be used to control rice blast and rice false smut. 100ml of 48% Lesben and 30 - 40ml of Regent (or 60g of 25% buprofezin) are used per mu to control brown rice lice and aphids.