由于温室无流失条件,大部分肥料被作物吸收后,剩余未被吸收的氮、钾等肥料全部残留在土壤中,常年聚积就会使土壤浓度过高,造成土表盐类的积聚,对黄瓜产生不同程度的危害。而且,由于温室内温度较高,水由下向上运动较快,易将土壤中所含盐类带至地表,损伤植株根部,妨碍根部对养分的吸收。一、危害症状温室盐害常使黄瓜茎类萎缩,心叶褪绿,未展开的叶柄向内弯 Due to the condition of no loss in the greenhouse, most of the fertilizers are absorbed by crops and the remaining un-absorbed nitrogen, potassium and other fertilizers are all remained in the soil. The perennial accumulations will cause the soil concentration to be too high, resulting in the accumulation of soil surface salts. Produce different degrees of harm. Moreover, due to the high temperature in the greenhouse, the water from the bottom up faster movement, easy to salt contained in the soil to the surface, damage the roots of plants, hinder the roots of nutrient absorption. First, endanger the symptoms Greenhouse salt damage often cucumber atrophy, leaf chlorosis, unexplained petiole inward bend