大棚草莓由于连年种植或肥力不足会造成某种营养元素的缺乏,或比例不适当,从而影响草莓的正常生长及高产优质。下面简单介绍一下大棚草莓营养失调的症状及矫治方法。缺氮症:幼叶淡绿色,成熟叶早期呈锯齿状红色;老叶变黄,局部枯焦;花和果实明显变小。可在萌芽前一周追施速效氮肥,花前花后喷2—3次0.3～0.5% Greenhouse strawberries due to years of planting or lack of fertility will cause a lack of nutrients, or the proportion of inappropriate, thus affecting the normal growth of strawberries and high yield and quality. Here is a brief introduction to the symptoms of greenhouse strawberry malnutrition and correction methods. Nitrogen deficiency: young leaves light green, mature early serrated red leaves; old leaves turn yellow, local Kujiao; flowers and fruits significantly smaller. Can be pursued in the sprouting of a week before the effective nitrogen fertilizer, spray 2-3 times before flowering 0.3 to 0.5%