邢台市大棚蔬菜种植面积逐年增长,连年种植蔬菜,使得棚内土壤营养元素失衡,导致蔬菜营养素缺乏症,影响了蔬菜的产量和品质。结合多年生产经验,总结了一些常见棚菜营养素缺乏的症状及补救措施。一、缺氮:其症状是植株矮小,叶色变淡或发红,其部分叶片变黄;茎色也常有改变,发展很快,干燥后呈褐色,茎短而细。补救措施:发现缺氮时,应及时追施速效氮肥,如硫铵、尿素等,但在棚内一般不用碳铵。 Xingtai City, greenhouse vegetable growing area increased year by year, year after year to grow vegetables, making the greenhouse shed nutrients imbalance, leading to nutrient deficiencies of vegetables, affecting the yield and quality of vegetables. Combined with many years of production experience, summed up some of the common greenhouse vegetables lack of symptoms and remedies. First, the lack of nitrogen: The symptoms are short plants, leaf color fades or redness, some of its leaves turn yellow; stem color is also often change, the development of fast, brown after drying, stem short and thin. Remedy: Found nitrogen, it should be promptly pursued nitrogen fertilizer, such as ammonium sulfate, urea, etc., but in the shed generally do not need ammonium bicarbonate.