What should we pay attention to when using flushing fertilizer to grow vegetables in greenhouse?

What should we pay attention to when using flushing fertilizer to grow vegetables in greenhouse? Solution as a new type of topdressing. Flushing fertilization is welcomed by the majority of farmers because of its simple application, easy absorption and fast fertilizer effect. Especially in the greenhouse cultivated in protected areas, it has been widely used and good economic benefits have been obtained. The application of flushing fertilizer to vegetables in greenhouse has a rapid fertilizer effect, which is beneficial to the increase of crop yield, especially when vegetable crops are cultivated in greenhouse in winter, the effect of conventional soil topdressing is often not ideal because of low temperature and lack of sunshine. if we apply high-quality flushing fertilizer and topdressing according to local conditions, the effect is very remarkable, not only the yield of vegetables is increased, but also the fruit is well colored, beautiful in shape and good in taste, which is welcomed by vegetable farmers. However, in recent years, it has been found that due to the frequent and excessive application of rush fertilization by many vegetable farmers, it has caused some bad phenomena, such as soil hardening, root retting, vegetable plant wilting and so on, which has even become a limiting factor restricting high yield and high quality in some places. attract the attention of the majority of vegetable farmers. In fact, flushing fertilization is to dissolve solid quick-acting chemical fertilizer into water and fertilize in the way of water with fertilizer, usually using water-soluble chemical fertilizer, mainly nitrogen fertilizer and potash fertilizer, which contains little phosphorus and trace elements such as calcium and magnesium. There are also some kinds of flushing fertilization that contain humic acid. The effect of flushing fertilization is limited to the surface of the soil, coupled with plastic film mulching, the temperature in the greenhouse is relatively high, and there are a large number of roots on the surface. If you encounter a low temperature cold current or apply with some inferior fertilizer, it is often easy to burn roots, resulting in rotting roots. The unilateral use of a large amount of nitrogen fertilizer and the abuse of flushing fertilizer will also lead to the overgrowth of vegetables, the decline of quality, the decrease of fertilizer use efficiency and the salinization of soil properties in the greenhouse. Get more water-soluble fertilizer application technology