药剂灌根对重茬建园苹果苗木生长的影响

Effects of root irrigation with different chemicals on the growth of apple under continuous cropping condition

对苹果伐老建新果园苗木使用不同药剂灌根处理,研究其防治重茬障碍的效果。结果表明,70%乙铝·锰锌400倍、32%精甲·噁霉灵2000倍、62.5 g/L精甲·咯菌腈3000倍分别配合使用12%吲丁·萘乙酸3000倍液,苗木成活率分别较对照增加了8.5、9.5、11.6个百分点,平均干径分别较对照增加了0.59、0.55、1.05倍,果园整齐度分别较对照提升了14.9、16.9、20.0个百分点。

Different chemicals were irrigated into new apple seedlings planted in continuous cropping soil,which showed good resistance to continuous cropping.The results showed that the survival rate of apple seedlings increased by 8.5,9.5 and 11.6 percentage points compared with the control when 70%ethyl aluminum manganese zinc 400 times,32%methyl carbendazim oxamyl 2000 times,62.5 g/L methyl carbendazim 3000 times,respectively,combined with 12%indrine naphthylacetic acid 3000 times.The average dry diameter increased by 0.59,0.55 and 1.05 times,the orchard uniformity increased by 14.9,16.9 and 20.0 percentage points,respectively compared with the control.