Crop growth is inseparable from rational management and fertilization, once fertilization fertilization poor management will affect the growth of crops, including leek leaf white spots appear in the growth process, is one such cause, so in order to control the disease must occur chives To find a reasonable management methods, and use a lot of elements to it for conditioning water-soluble fertilizer. Leek reason for causing white spots are mainly caused by the following aspects: temperature, humidity, lack of light, especially in greenhouses in the capacity to make the most planted chives chives resistance is poor, there is much less nitrogen fertilizer and potash fertilizer application, leading to unbalanced nutrition, so for greenhouse leeks should be strictly controlled temperature and humidity, should be promptly ventilation, ventilation, for leek nitrogen fertilization should be sufficient enough while also applying phosphate and potash as well as other trace elements to improve leek growing and resistance, reduce pests and diseases, so you can use a lot of elements of Montreal hi fat soluble, it is rich in nitrogen, phosphorus, potassium, and chelated trace elements too, can effectively promote their growth and improve inverse resistance. Therefore, for the prevention of white spots leek leaf, to a reasonable manage fertilization, you can use a large number of elements balanced water-soluble fertilizer, both to meet the needs of a variety of nutrients leeks, and can prevent nutrients is not balanced, so that the leeks healthy vigorous growth .