蔬菜的缺素症及治疗方法
CHINA FRUIT AND VEGETABLE(2003)
Abstract
缺氮自老叶新叶逐渐老化,叶片瘦小,基部变黄,生长缓慢,茎短细瘦弱,结球类菜不易结球或结球不良,根茎类不膨大.补救方法为667m2追尿素7.5&10kg或用人粪尿加水稀释浇灌根部,或叶面喷施丰产类激素.
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