抗低温冷害大豆种衣剂比较试验

Comparative Experiment of Soybean Seed Coating Agents Resistant to Low Temperature Chilling Injury

为促进大豆高产稳产,本研究通过在人工气候箱盆栽和田间小区试验使用亮盾、锐胜、35%多克福种衣剂,筛选具有抗低温冷害作用和田间使用效果较好的种衣剂。结果表明:3个种衣剂都具有一定的抗低温效果,亮盾与锐胜差异不显著,与35%多克福差异显著。田间小区试验结果显示,对照出苗率为87.7%,产量为1632.1 kg·hm^(-2),3个种衣剂处理出苗率分别为95.3%、93.6%和92.4%,产量分别为1826.9,1787.2和1726.9 kg·hm^(-2),较对照分别增产194.8,155.1和94.8 kg·hm^(-2),增产率分别为11.9%、9.5%和5.8%,与对照差异显著。3个种衣剂能达到较好的保苗壮苗、防病抗逆及增加大豆产量的目的,对促进大豆持续稳产增产起到较好的效果,从产量和经济效益分析,在大面积生产时,优选亮盾,其次选择锐胜。

In order to promote the high and stable yield of soybean,Liangdun,Ruisheng and 35%Dokfo seed coating agents were used in artificial climate box pot and field plot experiments to screen the seed coating agents with anti low temperature chilling injury and good field application effect.The results showed that three all kinds of coating agents had certain anti-low temperature effects,there was no significant difference between Liangdun and Ruisheng,and there was significant difference between them and 35%Dokfor.The results of field plot experiment showed that the emergence rate of control was 87.7%,the yield was 1632.1 kg·ha^(-1),and the emergence rates of three seed coating treatments were 95.7%,93.6%and 92.4%,and the yield was 1826.9,1787.2 and 1726.9 kg·ha^(-1).Compared with the control,the yield increased by 194.8,155.1 and 94.8 kg·ha^(-1) respectively,and the yield increased by 11.9%,9.5%and 5.8%,which was significantly different from the control.All kinds of coating agents could achieve the purpose of better seedling protection and strengthening,disease prevention and stress resistance,and increase soybean yield,and play a good effect on promoting sustainable and stable yield and yield increase of soybean,from the analysis of output and economic benefits,in large-scale production,Liangdun was preferred,followed by Ruisheng.