不同类型复合肥在超级杂交稻中的应用效果

Application Effects of Different Compound Fertilizer on Super Hybrid Rice

以超级杂交稻组合Y两优2号为供试品种,研究了4种复合肥对超级杂交稻生长发育和产量的影响。结果表明,在等养分用量条件下,与施用普通复合肥的处理(对照)相比,施用有机复合肥的处理有利于增加分蘖数、叶绿素含量、干物质积累、有效穗数和穗粒数,比对照增产9.1%,差异达极显著水平,是本试验中效果最佳的肥料品种;施用缓释复合肥的处理生长发育前期分蘖能力、干物质积累能力较弱,但后期养分持续供给能力强,总穗粒数和千粒重在各处理中均最高,最终比对照增产8.0%,差异达极显著水平;施用硅溶复合肥的处理分蘖迅速,物质积累能力强,在分蘖盛期具有试验中最大的群体,但进入抽穗灌浆期后群体下降较快,最终比对照增产6.7%,差异达极显著水平;施用微生物菌剂肥的处理与对照产量基本持平,增产效果不明显,但显著提高了超级杂交稻的有效穗数和结实率。

A field experiment was conducted to study the application effects of different compound fertilizer on super hybrid rice, using super hybrid rice combination Y Liangyou 2 as material. The results indicated that, compared with the control, the tiller number,chlorophyll content, amount of dry matter, number of productive panicles and grain number per panicle of the organic compound fertilizer treatment were increased, the grain yield was increased by 9.1%. The tiller number and dry matter accumulation of slow-release compound fertilizer treatment were slowly at the prophase of growth and development on super hybrid rice. However, with continuous supply of nutrients, the grain number per panicle and 1 000-grain weight were the highest in the text, and the grain yield was increased by 8.0% compared with the control. The tiller number of super hybrid rice was quickly and evenly, improved the dry matter accumulation by use silicon dissolving compound fertilizer. It has the largest population in tillering stage, but the population dropped rapidly after heading, and the grain yield was increased by 6.7% compared with the control eventually. The grain yield of microbial in-oculum fertilizer treatment was close to the control, but it has significant effect on the number of productive panicles and seed-setting rate.