播种量和秧龄对免耕抛秧晚稻产量及其构成因素的影响

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

以T优207为材料,研究了不同秧龄和播种量对晚稻免耕抛秧产量及其构成因素的影响。结果表明,秧龄和播种量对产量均有显著影响,秧龄在30d、35d、40d范围内,秧龄越短,产量越高;播种量在60g·m-2、90g·m-2、120g·m-2范围内,播种量越小,产量越高,秧龄30d与播种量60g·m-2是本试验的最佳处理组合。

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.