摘要
为研究化控剂玉黄金对不同种植密度下春玉米抗倒伏能力及产量的影响。以京农科828为试验材料,于玉米10叶期喷施玉黄金,分析玉黄金施用对玉米植株的生长指标、茎秆力学指标和产量的影响。结果表明,施用玉黄金能够降低株高、穗位高,缩短节间长度,提高穿刺强度和抗压强度,从而提高抗倒伏能力,实现增产。玉黄金处理后,京农科828品种在60000株/hm 2密度下产量分别比清水对照高6.04%、17.09%和20.64%;在67500株/hm 2密度下产量分别比对照高4.53%、13.77%和15.55%;在75000株/hm 2密度下产量分别比对照高7.83%、15.84%和27.93%。化控剂玉黄金可以提高玉米茎秆的压碎强度和穿刺强度,改善春玉米茎秆农艺性状和植株生长指标,提高茎秆抗倒伏能力,增加玉米产量,易于机械收获,为春玉米区玉米高产及实现全程机械化奠定基础。
In order to study the effect of chemical regulator Yuhuangjin on lodging resistance and yield of spring maize under different planting densities.Taking Jingnongke 828 as experimental material,the effect of applying Yuhuangjin at 10-leave stage on the growth index,stem mechanical index and yield of spring maize were analyzed.The results showed that Yuhuangjin could shorten plant height,ear height and the length of internode,could improve puncture strength and compressive strength,and could increase production through improving lodging resistance.Treated with Yuhuangjin,the yield of Jingnongke 828 was 6.04%,17.09% and 20.64% higher than that of the control at the density of 60000 plants/hm 2;and 4.53%,13.77% and 15.55% higher than that of control at the density of 67500 plants/hm 2;at the density of 75000 plants per hectare,it was 7.83%,15.84% and 27.93% higher than that of the control.Yuhuangjin could improve corn stem crushing strength and puncture strength,improve stem agronomic traits and plant growth index,improve stem lodging resistance,increase corn yield,then it is easy to mechanical harvest and can lay the foundation for realizing high yield and mechanization in the spring corn area.
作者
张佳琪
王明杰
谢世兴
武敏桦
卢海博
赵海超
黄智鸿
ZHANG Jia-qi;WANG Ming-jie;XIE Shi-xing(Hebei North University/Hebei Key Laboratory of Quality&Safety Analysis-Testing for Agro-Products and Food/Zhangjiakou Key Laboratory of Quality&Safety for Charactenistics Agro-products,Zhangjiakou,Hebei 075000)
出处
《安徽农业科学》
CAS
2023年第9期132-135,163,共5页
Journal of Anhui Agricultural Sciences
基金
河北省现代农业产业技术体系(玉米体系岗位专家)(HB-CT2018020203)
河北省科技厅项目(18226334D)
张家口市科学技术局项目(1911012C)。
关键词
春玉米
玉黄金
抗倒伏
农艺性状
产量
Spring maize
Yuhuangjin
Lodging resistance
Agronomic trait
Yield
