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guo shu zhi gan bing chong hai de zao chun fang zhi
Author(s): LIU Yaling
Pages: 54
Year: 2016
Issue:
1
Journal: Deciduous Fruits
Abstract: 春季是果树病虫害的有效防治时期,做好早春病虫害的防治,可有效降低全年病虫发生基数,大大降低防治成本.
①施肥灌水,促壮树体.春季及时追肥,秋季未施基肥的成龄园每666.7m2应先补施腐熟的优质有机肥5000~6000kg,再按全年氮、磷用量的60%和35%的化肥及少量钾肥施入.施肥后灌水,利于肥料养分的有效利用,持续供给树体萌芽、开花、抽枝需要的充足养分,防止树体上年贮藏养分不足而影响春季的生长和发育.
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