How to fertilize tobacco leaves?

Modern agriculture has bid farewell to the situation of relying on the weather to eat. Fertilizer is an important catalyst for crop growth. Appropriate fertilizer can promote crop growth and play an important role in promoting the formation of high-quality crops. Tobacco leaf is a kind of economic crop with high added value, and reasonable fertilization may be necessary. I think that tobacco fertilization should pay attention to the following points:

1. Pay attention to the base fertilizer and topdressing as soon as possible. Most of the fertilizers should be used as base fertilizer and the rest as topdressing. Base fertilizer is mainly composed of organic fertilizer, phosphate fertilizer and potash fertilizer, and topdressing is mainly nitrogen fertilizer.

2. Reasonably grasp the NPK fertilization ratio. Tobacco leaves have a great demand for potash fertilizer. Adequate potassium fertilizer can promote the photosynthesis of leaves and is beneficial to the transport of nutrients. Therefore, potassium deficiency in tobacco leaves will affect leaf growth, and the amount of nitrogen fertilizer should be carefully controlled. If there is too much nitrogen fertilizer, the leaves may be rough.

3. Pay attention to the weather when fertilizing. Tobacco cultivation needs higher climatic conditions. When there is a lot of rain, fertilizer is easy to be lost, so it is necessary to increase fertilization appropriately, especially the application of nitrogen fertilizer, and reduce fertilization moderately when the weather is dry.

4. Balanced fertilization to prevent individual overnutrition. Single application or excessive fertilization is not conducive to tobacco growth, if only farmyard manure is added, it will also lead to tobacco growth. Therefore, in the process of fertilization, organic farmyard manure should be combined with appropriate amounts of nitrogen, phosphorus, potassium fertilizer and other trace element fertilizers to ensure nutrient balance.

Generally speaking, tobacco leaves need reasonable and moderate fertilization. Pay attention to the weather in the process of fertilization, avoid the fertilizer being washed by rain, pay attention to base fertilizer and topdressing in time, especially potassium fertilizer is more important to the growth of tobacco leaves, and appropriately increase the dosage of potassium fertilizer.