Many growers have developed a habit that no matter what period of vegetable growth, as long as the water must be fertilized with water. This practice is not advisable because the use of more fertilizer will result in waste and it will be prone to produce fertilizer. So, how is it reasonable to fertilize with water? First, the amount of fertilizer and frequency of fertilization are determined according to the growth period of the vegetables. Vegetable seedlings need less fertilizer, due to adequate basal fertilizer, even if the plants do not flush fertilization will not lack of fertilizer, this period only need watering. After entering the initial fruit period, the plant needs to increase the amount of fertilizer, but due to adequate basal fertilizer, there will basically be no shortage of fertilizer. This period can be fertilized according to the growth of the seedlings as appropriate, the amount of fertilizer should not be too large, and it is not appropriate to have fertilizer for every water. . After the plant enters the full fruit period, the amount of fertilizer is required to increase. At this time, fertilizer and water need to be attacked, and each watering must be carried with fertilizer. Generally, 15 to 20 kg of compound fertilizer is applied per mu, or biological fertilizer is applied per mu. ~ 40 kg. The appearance of gold rims on the leaves is a symptom of over-fertilization. It is necessary to reduce the amount of fertilizer and frequency of fertilization. In the late growth period, the amount of fertilizer needed by the plants is reduced. At this time, the amount of fertilizer and frequency of fertilization should be reduced, but trace elements should be added to prevent the lack of vegetables. The second is to determine the frequency of fertilization according to the season. In winter, soil moisture evaporates less and the number of watering times is less. Especially in deep winter vegetables, greenhouse vegetables are usually watered for 20 to 30 days. In this case, every water must be fatted. In the summer, every 5 to 7 days, once the water is poured, each of the waters is obviously too frequent with fertilizer. You can pour water once to flush out the fertilizer and water, so as not to overdo the fertilizer, the money will not receive good results. The third is to determine the frequency of fertilization according to the type of vegetables. The fertilizer requirements of various vegetables are different, so the number of fertilization should also be determined according to the type of vegetables. Leaf vegetables have a short growing period, fast growth, and a short fertilization interval. Solanaceous vegetables and melons have a long growing period, the growth rate is relatively slow, and the fertilization interval should be longer. Lacto Helveticus,Lactobacillus Helveticus,Lactobacillus Helveticus Powder,Lactobacillus Helveticus Probiotic Jiangsu Biodep Biotechnology Co. ,Ltd. , https://www.mbioda.com