【摘要】 用蚯蚓粪和化肥制成蜂窝煤状的根际肥 ,将苹果树的根刨出剪断后插入含有根际肥的蛭石营养袋内 ,断根能在含有营养液的蛭石内长出大量新根 ,新根能够进入根际肥内或绕根际肥生长。与对照相比 ,根际肥处理增加了叶片中叶绿素含量 ,增加了铁和其它大多数矿质元素的含量 ,矫正苹果缺铁失绿症效果明显。更多还原

【Abstract】 Rhizosphere fertilizer consisted of excretion of earthworm and chemical fertilizer shaped like bee house,cutting roots of apple trees were inserted into nutrient bags containing vermiculite and a rhizosphere fertilizer.Cutting roots could sprout a number of new roots and grow into or around rhizosphere fertilizer in nutrient bags. Compared with the control,treatments of rhizosphere fertilizer increased the contents of chlorophyll,iron and other mineral elements in leaves,remeding iron deficiency chlorosis.更多还原