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１ 施用硝酸钙可使蔬菜增产蔬菜为喜钙作物 ,对钙元素的吸收量较大 ,同时蔬菜对硝酸态氮特别偏爱 ,极易吸收。所以 ,蔬菜施用硝酸钙一般可增产９ １ %～２４ １ % ,叶面喷施硝酸钙增产率低于土施 ,一般为４ ２ %～２７ ７ % ;大白菜、番茄、芹菜土施硝酸钙增产率分别为１４ ０
1 Application of calcium nitrate can increase vegetables Vegetables as hi calcium crops, calcium absorption of large, while vegetables are particularly preferred nitrate nitrogen, easily absorbed. Therefore, the application of calcium nitrate in vegetables can generally increase 9 1% ~ 24 1%, foliar application of calcium nitrate yield is lower than the soil, usually 42% ~ 27 7%; Chinese cabbage, tomato, celery soil calcium nitrate The rate of increase was 140