1、 Fertilization time

Sunflower still has a high demand for fertilizer. First, when changing pots, you need to use base fertilizer. When it enters the growth stage, it has requirements for topdressing due to its vigorous growth. After the budding stage, especially apply some foliar fertilizer

2、 Fertilizer type

The selected base fertilizer is mainly some organic fertilizer, such as some animal manure. Topdressing mainly contains nitrogen rich fertilizer, and potassium is also important, such as urea, plant ash, etc. Foliar fertilizer can be used in zinc, copper, manganese and other solutions

3、 Fertilization method

1. When the base fertilizer is used, it can be directly mixed with the substrate. If urea is used for topdressing, it can be applied after mixing with water; If plant ash is used, small pits can be dug on the surface of the soil and then applied to these pits. Foliar fertilizer is applied directly to the surface of the leaves

2. Topdressing needs to pay attention to the fertilization interval, which can be controlled in about two weeks without too frequent

4、 Precautions

When the temperature is too high or too low, sunflower may enter the stage of dormancy. At this time, fertilization can be suspended. Applying too much fertilizer is easy to do harm to itself