Influence of Seedling Age and Sowing Amount on Yield and Constitution Factor of Late Rice with No-tillage Cast Seedling

With rice T-you 207 as test material, yield and its constitution factors of no-tillage cast seedling late rice under different sowing amount and seedling age were studied. The results showed that yield was affected significantly by sowing amount and seedling age. The shorter the seedling age, the higher the yield with seedling age of 30 days, 35 days and 40 days. The smaller the sowing amount, the higher the yield with sowing amount of 60 g·m-2, 90 g·m-2 and 120 g·m-2. Seedling age of 30 days and sowing amount of 60 g·m-2 was the best combination.