缓释肥一次性基施对超级稻盐粳15号产量和品质的影响

Effects of Single Basal Application of Slow-release Fertilizer on the Yield and Quality of the Super Rice Variety Yangeng No.15

本文研究不施肥、常规施肥和缓释肥一次性基施3个处理对盐粳15号产量和品质的影响,结果表明:与常规施肥相比,不施肥处理缩短盐粳15号的全生育期,抽穗期提前2 d,成熟期提前4 d;缓释肥一次性基施的盐粳15号生育进程与常规施肥无差别。不施肥、常规施肥和缓释肥一次性基施处理下,盐粳15号的株高分别为92.45、103.24、98.33 cm,且3个处理间差异有统计学意义;不施肥盐粳15号的有效穗数、穗长、总粒数、实粒数和千粒质量均最低,分别为19.51万个/667 m^(2)、12.08 cm、103.17粒/穗、98.8粒/穗、26.23 g;缓释肥一次性基施盐粳15号的穗长、总粒数、实粒数和千粒质量分别为15.55 cm、124.75粒/穗、121.75粒/穗、26.89 g,与常规施肥处理间的差异均不具统计学意义;不施肥处理盐粳15号的实收产量最低,为488.02 kg/667 m^(2),缓释肥一次性基施的实收产量为741.42 kg/667 m^(2),但与常规施肥的722.06 kg/667 m^(2)相比,产量差异无统计学意义。

The current research assessed the effects of three fertilization treatments-no fertilization,conventional fertilization,and single basal application of slow-release fertilizer-on the yield and quality of the super rice variety Yangeng No.15.As a result,no fertilization treatment shortened its whole growth period,leading to the heading and maturity stages advanced by two and four days,respectively,relative to the conventional fertilization treatment.On the other hand,the whole growth period of Yangeng No.15 with single basal application of slow-release fertilizer was not different from that of the conventional fertilization treatment.No fertilization,conventional fertilization,and single basal application of slow-release fertilizer had the statistically significantly different plant heights of 92.45 cm,103.24 cm,and 98.33 cm,respectively.Moreover,no fertilization treatment had the lowest values of effective panicle number per 667 m^(2),panicle length,total grain number per spike,filled grain number per spike,and 1000-grain weight,standing at 195100/667 m^(2),12.08 cm,103.17 grains/spike,and 98.8 grains/spike,and 26.23 g,respectively.In the treatment with single basal application of slow-release fertilizer,the panicle length,total grain number per spike,filled grain number per spike and 1000-grain weight were 15.55 cm,124.75 grains/spike,121.75 grains/spike,and 26.389 g,respectively,which had no statistically significant differences from the counterparts of the conventional fertilization treatment.Furthermore,no fertilization treatment had the lowest yield(488.02 kg/667 m^(2)),while the treatment with single basal application of slow-release fertilizer attained the highest(741.42 kg/667 m^(2)),which,however,had no statistically significant difference from the yield of the conventional fertilization treatment(722.06 kg/667 m^(2)).