摘要
铁肥根系输液处理时铁以二价态由根被动吸收、运输。根、茎、叶和主脉内运输部位都是靠近形成层的木质部，绝大部分铁运往地上部，根系分布很少。强力高压注射时铁主要沿中央木质部运输，首先充分向下运往根系，向上运输较向下运输少。环状沟土壤浸施铁肥在不断根的情况下很难被根吸收，断根情况下吸收。
Experim entw as conducted w ith 3-year-old trees ofNagano Fujivariety.Results show ed w hen the roots soaked in the iron fertilizer liquid, the Fe2+ translocated along the xylem near cam - bium in roots, branches and m ain vein of leaves, but the distribution of iron in roots w as few . When iron fertilizer w as intensively injected into the trunk,the Fe2+ transported along the central xylem , m ost ofFe2+ transported into roots. Generally, itisdifficultto be absorbed by rootsw hen iron fertilizer w as drenched into soil.
出处
《果树科学》
CSCD
北大核心
1999年第1期1-3,共3页
Journal of Fruit Science
基金
国家自然科学基金
关键词
苹果
铁肥
吸收
运输
Apple
Iron fertilizer
Absorption and transportation
