【摘要】 主干加压注射法可有效地补充树体矿质元素.苹果主干注射 Fe、Ca、B、P 元素显著地提高了树体叶片中所注元素的含量;注射 FeSO₄可矫治因土壤缺 Fe 造成的山楂黄叶病;试验分析了不同处理对树体某些生物、生理指标的影响.主干加压注射法快速、高效、经济,是补充与调节果树矿质营养的一条新途径.更多还原

【Abstract】 High pressure trunk injection can supply mineral elements into the fruit trees.On appletrees,Fe,Ca,B,Zn,P injection improved their content in leaves.On hawthorn(Crataeguspinnatifida L.)trees,Fe fertilizer injection eliminated iron deficency.Effects of differenttreatment on some biological characteristics were discussed.High pressure trunk injection is anew method for regulating fruit tree mineral nutrition,which is quite rapid,high efficiencyand fairly economic.更多还原