不同组合药剂拌种对鲜食玉米生长及产量的影响

Effects of different combinations of pesticides on the growth and yield of fresh corn

适宜的病虫害防治是实现鲜食玉米高产优质高效的重要措施。为筛选适宜鲜食玉米的拌种药剂组合,本试验以鲜食玉米农科糯336为试验材料,分别设置4种不同组合药剂(组合1,北农+碧护;组合2,锐胜+北农+碧护;组合3,噻安丰+北农+碧护;组合4高巧+北农+碧护)和空白处理(CK),研究不同处理对农科糯336的出苗率、苗期植株性状及成熟期产量性状的影响。结果表明,不同组合药剂拌种的农科糯336的出苗率为88.50%~96.67%,组合2、3和4的出苗率较好;组合1、4的玉米苗期株高及叶片长度较好。不同组合药剂拌种的农科糯336的单果重量为183.05~198.33 g,组合1、4的单果重量较高。果实长度为17.23~18.00 cm,组合4的果实长度最长。病虫穗率以组合4最低,为15.35%。综合来看,组合4药剂拌种的出苗率较高,苗期生长较好,果穗产量较高,病虫穗率较低,综合抗性最好,适合作为鲜食玉米的拌种组合药剂推广应用。

Appropriate pest and disease control measures are important measures to achieve high yield,quality,and efficiency of fresh corn.To screened suitable seed dressing combinations for fresh corn,this experiment used fresh corn Nongkenuo 336 as the experimental material,and seted up four different combinations of pesticides combination 1(Beinong+Bihu),combination 2(Ruisheng+Beinong+Bihu),combination 3(Tiananfeng+Beinong+Bihu),and combination 4(Gaoqiao+Beinong+Bihu)and blank treatment(CK)to study the effects of different treatments on the emergence rate,seedling plant traits,and mature yield traits of Nongkenuo 336.The results showed that the emergence rate of Nongkenuo 336 mixed with different combinations of pesticides ranged from 88.50%to 96.67%,and combinations 2,3 and 4 had better emergence rates;Plant height and leaf length of maize seedlings in combination 1 and 4.The single fruit weight of Nongkenuo 336 mixed with different combinations of pesticides ranged from 183.05 to 198.33 g,while combinations 1 and 4 had higher single fruit weight.The fruit length ranged from 17.23 to 18.00 cm,and the fruit length of combination 4 was longer.The lowest disease and insect spike rate was found in combination 4,which was 15.35%.Overall,combination 4 had a higher emergence rate,better growth during the seedling stage,higher ear yield,lower disease and insect ear rate,and the best comprehensive resistance.It was suitable for promotion and application as a seed mixing combination agent for fresh corn.