论文部分内容阅读
为探讨苹果缺锌小叶病的经济有效的防治方法 ,以盛果期红富士苹果为试材 ,在相对缺锌 (有效锌含量 0 4 5mg kg)的砂地果园 ,采用L18(37)正交试验设计方法 ,进行了不同施肥管理措施对防治苹果小叶病的研究。结果表明 ,河滩砂地果园重病株大树以秋季株施基肥 5 0kg、落叶前期根外喷施 15 %硫酸锌和萌芽初期根外喷施 0 5 %硫酸锌效果最佳。土施硫酸锌对砂地果园防治苹果小叶病无显著效果
In order to explore a cost-effective method for controlling zinc-deficiency leaf blight in apple trees, taking the full-fledged Red Fuji apple as test material, L18 (37) orthogonal test was carried out in sandy orchards with relative zinc deficiency (effective zinc content of 0 45 mg kg) Design methods, carried out different fertilization management measures to control apple leaflet disease research. The results showed that the best trees were treated with 50 kg of base fertilizer in fall plant, 15% of zinc sulfate in the early deciduous leaves and 0 5% of zinc sulfate in the initial germinating stage. Soil zinc sulphate has no significant effect on preventing and curing apple leaflet diseases in orchards