Detailed Explanation of Main Cultivation Techniques for the New Late Japonica Rice Variety Ning 88

1. Sparse sowing for strong seedlings, transplanting at the right time. For single-season late rice cultivation, the sowing period is June 5-15, with a seeding rate of 2.5-3.0 kg per mu, a seedling bed sowing rate of 30 kg per mu, and a seedling age of 25 days; for continuous late rice cultivation, the sowing period is June 25-30. The seeding rate is about 3.0 kg per mu, the seedling bed sowing rate is 25-30 kg per mu, and the seedling age is about 25 days. For continuous late rice mechanical transplanting or seedling throwing cultivation, the seeding rate is 3.0-4.0 kg per mu, the seedling bed sowing rate is 35-40 kg per mu, sowing on July 5-10, and the seedling age is 15-20 days.

2. Uniform plant spacing and dense planting, with sufficient basic seedlings inserted. For single-season late rice cultivation, transplant 18,000-20,000 hills per mu, with 60,000-80,000 basic seedlings; for continuous cropping late rice cultivation, transplant 20,000-24,000 hills per mu, with 80,000-100,000 basic seedlings.

3. Apply sufficient base fertilizer, apply topdressing early, and apply panicle fertilizer appropriately. The total fertilizer application rate per mu is 12-14 kg of pure nitrogen for single-season rice; 10-12 kg for double-season rice, 25 kg of superphosphate, and 7.5-10.0 kg of potassium chloride. According to the growth conditions of the seedlings, apply panicle fertilizer appropriately to increase panicle size and give full play to the advantage of large panicles.

4. Scientific water and slurry management. After transplanting, irrigate to support the seedlings; after turning green, irrigate with shallow water; when tillering reaches more than 90% of the seedlings, drain the field to control the seedlings, achieving strong tillers and promoted roots. After heading, alternate wetting and drying, irrigate with running water, and strictly avoid cutting off water too early, so as to facilitate full grain filling and achieve green stems and yellow grain, with living stems until old age.

5. Do a good job in pest and disease control. Ning 88 has a large panicle type and high grain density on the rice panicle. Before and after initial heading, pay attention to preventing rice false smut and rice blast. Per mu, 150 grams of jinggangmycin plus 100 grams of tricyclazole can be used to control rice blast and rice false smut. Per mu, 100 milliliters of 48% Lesiban plus 30-40 milliliters of Regent (or 60 grams of 25% buprofezin) can be used to control brown planthopper, aphids, etc.