【摘要】 Zn是人体必需的微量元素之一,本试验供试品种为市面销售的晚熟粳稻"农大19号".实验结果表明:施Zn使水稻对Mg的吸收的影响因不同器官而异,根、茎、叶片为正效应,叶鞘和穗为负效应.施Zn不能改变同一时期Mg在植株各器官的分配顺序,只能改变其分配比例;施Zn不能改变Mg随生育进程的变化规律;施Zn能降低稻谷中Mg的含量.更多还原

【Abstract】 Zn is one of the essential trace elements. The sample in the experiment is the late- maturing japonica rice "Nongda 19 "sold on the market. Experimental results showed that effects of Zn fertilizer on the aborsoption of Mg by rice vary due to different organs,with positive effects on root,stem and leaf while negative effects on sheath and spike. Zn application can not change the allocation order of Mg in the plant organs during the same period,but change its distribution ratio; Zn application can not change the variation of Mg with growth process; Zn application can reduce the content of Mg in rice.更多还原