How do flower farmers choose fertilizers?

You can't grow flowers without fertilizer, and all flower farmers will encounter the problem of buying fertilizer. Faced with all kinds of brands and types of fertilizer products available in the market, how can we choose the fertilizer that suits our favorite flowers best? First, choose fertilizer according to the growth stage of plants. The fertilizer used by plants at each growth stage is different. For example, fertilizers with high nitrogen, low phosphorus and low potassium should be used at seedling stage, and fertilizers with low nitrogen, high phosphorus and medium potassium should be used to promote flowering. For some flower farmers, because of their short time and lack of experience, they are not familiar with the details of fertilizer use, so it is appropriate to ask many veterans for advice. Second, buy fertilizer according to the actual lack of plants. Plants will behave differently if they lack some nutrients, and some people will buy some fertilizers to apply them. It often causes fat damage. Buying fertilizer should be based on the actual situation of plant nutrient deficiency. Third, buy fertilizer according to the cost performance. Some people think that expensive fertilizer is good fertilizer, but it is not. At present, the popular fertilization method is 75% controlled release fertilizer plus 25% water-soluble fertilizer, which is the most economical and effective. In the eyes of ordinary people, the price of controlled release fertilizer is high, and the use will increase the cost, but it is not. Water-soluble fertilizers will be wasted in use. Controlled release fertilizer is a kind of coated fertilizer, which can be released according to the needs of plants, which can minimize the waste of fertilizer and has high efficiency. In addition, when choosing controlled release fertilizer, we should also pay attention to some instructions provided by suppliers, such as the composition differences between different brands. Some brands of fertilizers have some patented technologies that can promote the absorption of nutrients by plants. All this information should provide the basis for the choice. Because flower farmers don't need as much fertilizer as flower farmers and farmers, don't be greedy when buying fertilizer. Some fertilizers will evaporate once they are opened and not used for a long time. So you'd better buy it again and use it immediately after unpacking.