施肥量和密度对孝糯优6号产量及构成要素的影响

Effects of Fertilization Amount and Planting Density on Yield and Yield Components of Rice Xiao-nuoyou 6

密度、肥料两因素试验结果表明,肥力是影响产量的主要因素,密肥互作对产量具有显著影响。孝糯优6号在低等密度和高等肥力条件下产量最高。经济性状调查结果表明,孝糯优6号在高等密度和中等肥力条件下,有效穗和成穗率均最高。在低等密度和低等肥力条件时,每穗总粒数和每穗实粒数最高,而在中等密度和中等肥力条件下千粒重最高。

Experiment results showed that fertilization amount was the dominant factor that affected the yield of Xiao-nuoyou6. The interaction effectof planting density and fertility significantly affected the yield. The yield of Xiao-nuoyou 6 reached highest under low density and high fertilization amount. Investigation on economic characters showed that the effective panicles and panicle forming rates were the highest under high density and medium fertilization amount. The total grains per panicle and the seed grains per panicle were the highest under the low planting density and low fertilization amount. The 1 000-seed weight was the highest under the medium planting density and medium fertilization amount.