Generally, organic fertilizers with good soil improvement performance are selected as tea base fertilizer, such as green manure, grass manure, straw, compost, manure and cake fertilizer with high cellulose content. At the same time, phosphate rock powder, calcium magnesium phosphate or calcium superphosphate are applied together. The base fertilizer should be combined with deep ploughing, so that the soil and fertilizer can be fully mixed. You should wait for a while before planting tea.

the role of tea base fertilizer

As a perennial evergreen crop, tea tree has obvious characteristics of nutrient storage and reuse. The overground part stops growing, while the underground part is still absorbing nutrients. Most of the absorbed nutrients are stored in the roots to become the material basis for the germination of new shoots in the second year, which plays a decisive role in the early development and fatness of spring tea.

selection of tea base fertilizer

organic fertilizer should be selected for tea base fertilizer, and 4-6 kilograms should be applied per mu. Pay attention to the principle of applying thin fertilizer frequently, and raw fertilizer or concentrated fertilizer should not be used.

Tea base fertilizer can be put away before the frost falls to beginning of winter, or it can be applied from mid-February to late March every year, and the fertilizer should be fully decomposed.

How to apply the tea base fertilizer

1. Deep application: The tea base fertilizer should be applied to about 5-6 cm, which can promote the maturation of deep soil and promote the root system of plants to develop deeply, thus forming a good root system.

2. organic fertilizer is preferred: organic fertilizer with good soil improvement performance is generally selected as the base fertilizer, such as green manure, grass manure, straw, compost, manure, cake fertilizer, etc., and phosphate rock powder, calcium magnesium phosphate or calcium superphosphate are also applied. Quick-acting fertilizer is not suitable as the base fertilizer because it is easy to leach out.

3. The dosage at one time should be large and sufficient: the conventional dosage is 15-2 tons of compost per mu plus about 3 kilograms of phosphate rock powder or calcium magnesium phosphate fertilizer, and it should be applied after 5-1 days of stacking.

4. Uniformly mixing soil and fertilizer: the base fertilizer should be combined with deep ploughing, so that the soil and fertilizer can be fully mixed. You can't plant tea immediately after deep ploughing and fertilization, and you should wait for a while before planting tea seedlings.