First, according to different flowers, in the different growth periods of nutrient needs to fertilize. In general, applying nitrogen fertilizer before seedlings can help seedlings grow; applying phosphate fertilizer before flowering can bloom flowers; applying potash fertilizer before winter can make seedlings rough and strong.
Second, according to the soil nutrient supply capacity and changes in fertilization. When the soil acidity is too strong, phosphorus will become a state that plants cannot absorb. When there is too much alkali in the soil, the solubility of elements such as calcium, iron, manganese, zinc, and boron is reduced, and it is also prone to a situation where the demand exceeds supply.
Third, to accurately grasp the composition and nature of fertilizers. It is applied according to the characteristics of the fertilizer. General organic fertilizer is used as base fertilizer and chemical fertilizer is used as top dressing.
Fourth, according to the specific plant in the middle of the year really lack any nutrients, if necessary, what nutrients. This is important in many large potted flowers.
5. In addition, the newly planted plants should not be applied, the flowering stage should not be applied, the dormancy period should not be applied, the roots should not be applied, the concentrated fertilizer should not be applied, the raw fertilizer should not be applied, the nitrogen fertilizer should not be applied, the sick and weak plants should not be applied, and so on.
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