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栽前用几种药物进行的土壤熏蒸,增加苹果重茬栽植树和桃重茬栽植树(砧木前茬为桃实生砧,后茬为桃或扁桃)的干周和产量。对于苹果和桃,施用70%溴甲烷和30%氯化苦的混合物或在同块地上先后施用这两种药物较单独施用其中的一种药物更有效。对于桃重茬栽植树(前后茬砧木均为桃)单独利用太阳能进行的土壤加热(日晒)及与少量溴甲烷熏蒸结合较双重熏蒸(先用氯化苦,后用溴甲烷)更无效。再植的桃树,即使栽植在原定植行之间,而不是栽植在原定植穴上,其受桃再植病的影响程度相同。
Soil fumigation with several drugs prior to planting increased the dry weeks and yields of apples planted with replanting and peach replanting of planted trees (rootstock antelope for peach, anteroposterior peach or almond). For apples and peaches, it is more effective to apply a mixture of 70% methyl bromide and 30% chloropicrin or to apply these two drugs on the same block in succession than either drug alone. Soil heating (sun exposure) with solar energy alone and combined with a small amount of methyl bromide fumigation are more ineffective than double fumigation (using chloropicrin followed by methyl bromide) for planting peach trees (both rootstocks are peach). Replanting of peach trees, even if planted in the original planting line, rather than planting in the original planted hole, the peach replantation affected by the same extent.