1. The application type of base fertilizer should be considered: organic fertilizer is the most suitable base fertilizer, and inorganic fertilizer is very important for the growth and development of crops at seedling stage and early growth stage.

2. The amount of base fertilizer should be considered: according to the soil fertility, the nutrients lacking in the soil should be supplemented appropriately; Apply different base fertilizers according to different growth stages of crops;

3. Fertilizer varieties of base fertilizer should be considered: ammonium bicarbonate for nitrogen fertilizer, calcium superphosphate, diammonium phosphate and calcium magnesium phosphate for phosphate fertilizer, plant ash and potassium chloride for potassium fertilizer, zinc fertilizer and manganese fertilizer for micro-fertilizer.

4. The application depth of base fertilizer should be considered: Generally speaking, base fertilizer should be applied to the whole plough layer, and the suitable depth is 15-20cm. The base fertilizer can be applied in strips during ploughing, mixed with cultivated soil, or applied in layers.

Extended data:

Types of base fertilizer: base fertilizer includes organic fertilizer and inorganic fertilizer, organic fertilizer such as farmyard manure, green manure and cake fertilizer, and inorganic fertilizer such as NPK fertilizer and trace fertilizer.

Precautions:

1, organic fertilizer should not be used too much, which will also cause the temporary lack of nitrogen in flower soil for a period of time and reduce the availability of zinc in soil.

2, family potted flowers in fertilization, try to achieve balanced fertilization. The demand ratio of different flowers for different nutrients should increase and decrease. Strive for a balance between nutrient elements.

3. Mixed application of zinc fertilizer and phosphate fertilizer will produce mutual grams, and the application period or application site should be staggered. Phosphate fertilizer can be used as base fertilizer or base fertilizer, and zinc fertilizer can be used as topdressing.

Base fertilizer-Baidu encyclopedia