不同生育时期喷施硒肥对谷子农艺性状及产量的影响

Effect of Spraying Selenium Fertilizer on Agronomic Characters and Yield of Millet at Different Growth Stages

在谷子拔节期、抽穗期和灌浆期叶面喷施亚硒酸钠,试验采用随机完全区组设计,4个施硒水平,研究农大8号和农大10号农艺性状及其产量响应情况。结果表明,与对照相比,在谷子生育时期喷施适量的亚硒酸钠能够促进谷子的农艺性状及产量,且随着施硒浓度的增加谷子的株高、叶面积及产量呈先增加后降低的变化趋势,在T1(33.92 g/hm^2)处理下可以促进植株的株高、叶面积和穗长,在T2(67.84 g/hm^2)处理下谷子的千粒质量、穗粒质量和产量达到最好效果,从而促进产量的提高。

Sodium selenite was sprayed on the jointing,heading and filling stages of millet to study the agronomic characters and yield effects of Nongda 8 and Nongda 10.Randomized block design trial,4 selenium levels were applied.The results showed that the appropriate amount of sodium selenite could promote the agronomic traits and yield of millet during the growth period of millet,compared with the control.Especially with the increase of selenium concentration,the height,leaf area and yield of millet increased first and then decreased.The plant height,leaf area and ear length could be promoted in T1(33.92 g/hm2)treatment.In T2(67.84 g/hm2),the best results were achieved,which helped to increase yields.