吨田宝对杂交水稻科优21产量的影响

为探明吨田宝施用时期、施用量对杂交水稻品种科优21产量的影响,采用田间试验研究吨田宝不同时期(分蘖期、拔节期、灌浆期)不同施用量(50 mL/667m~2、100mL/667m~2)对科优21产量和性状的影响,并进行相关性分析。结果表明:与不施用吨田宝对照相比,叶面喷施吨田宝能促进科优21增产增效,每穗粒数增加1.2~23.6粒,每穗实粒数增加0.1~6.4粒,群体有效穗增加616~1 548穗/667m~2。其中,以科优21分蘖期叶面喷施吨田宝100mL/667m~2的产量最高,达684.68kg/667m~2,极显著高于对照,增加纯收入71.3元/667m~2。株高与施用量呈负相关,每穗实粒数、群体有效穗、群体产量与施用量呈显著或极显著正相关。

Effects of Duntianbao on Yield and Characteristics of Hybrid Rice Keyou 21

In order to ascertain the effects of application data and application rate of Duntianbao on yield of hybrid rice Keyou 21,a field experiment was conducted to explore the yield and characteristics of Keyou 21 with different application data(tillering stage,jointing stage and filling stage) and application rate(50 mL/667m2 and 100 mL/667m2),and the correlation analysis was conducted as well.Results:Compared with the control,foliar application of Duntianbao promoted yield increasing of Keyou 21,grains per spike,full grains per spike and group effective spikes increased by 1.2～23.6 grains,0.1～6.4 grains and 616～1548 spikes/667m2,respectively.Among them,Keyou 21 applied with 100 mL/667m2 by foliage dressing was of the highest yield of 684.68 kg/667m2,extremely significantly higher than the control,and the net income was increased by 71.3 Yuan/667m2.Plant height negatively corrected with fertilizer application amount,while full grains per spike,group effective spikes and group yield significantly or very significantly positively corrected with fertilizer application amount.