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一、缺氮 枝条细长,下部叶片发黄,严重时整个植株变为 浅黄绿色,果实色泽变淡变小。防治方法:(一)用 0.25～0.5％的尿素进行叶面追肥。(二)在营养液中加
First, lack of nitrogen slender branches, the lower part of the leaves yellow, serious when the entire plant becomes pale yellow-green, faded fruit color becomes smaller. Control methods: (a) 0.25 ~ 0.5% urea foliar top dressing. (B) in the nutrient solution plus