论文部分内容阅读
为明确不同生物炭量对粳稻垦鉴稻5号穗部性状及产量的影响,试验采取单因素完全随机设计进行研究。结果表明:各处理的着粒密度、不同粒位的二次枝梗数、实粒数、实粒质量、每平方米穗数、产量均高于对照,其中施入生物炭1 100 kg/667 m2时的着粒密度、实粒质量、产量与对照差异达显著或极显著水平。产量构成因素中,穗数、穗粒数与产量呈显著或极显著正相关;穗长、一次枝梗数、结实率、千粒质量与产量均呈正相关,相关系数大小顺序为:穗长>千粒质量>一次枝梗数>结实率,以施入生物炭1 100 kg/667 m2的综合表现最好,有利于水稻产量的提高。
In order to clarify the effects of different biochar levels on panicle traits and yield of japonica rice Kenjinda 5, a single-factor randomized design was used to study the effects of different biochar levels. The results showed that the grain density, the number of secondary branches with different grain positions, the number of solid grains, the number of solid grains, the number of spikes per square meter and the yield of each treatment were higher than those of the control. The application of biochar 1 100 kg / 667 m2 When the grain density, grain quality, yield and control differences were significant or extremely significant level. There was a significant positive correlation between yield and spikelet number per spike and grain yield. Spike length, primary branch number, seed setting rate, grain weight and grain yield were positively correlated with the order of the correlation coefficients as follows: spike> 1000 Grain quality> number of primary branches> seed setting rate, and the best combination of application of biochar 1 100 kg / 667 m2 was in favor of the increase of rice yield.