When will the apples sprout? How to fertilize in germination stage?

It is generally believed that the canopy can be enlarged and the yield can be increased. Germination fertilizer is generally applied after "beginning of spring", that is, from early February to early March. If you want to apply bud fertilizer well, what you need to pay attention to here is: look at the soil fertilization, look at the tree fertilization, and look at the sky fertilization; Deep application of organic fertilizer and shallow application of chemical fertilizer. This is mainly determined by the growth of apple trees. Germination fertilization needs to reserve this nutrient for apple trees to bloom, grow leaves, set fruit, grow branches and gradually expand behind the fruit, otherwise they will not grow.

Germination fertilizer can also be called spring topdressing to some extent. On the basis of applying base fertilizer in autumn, it provides nutrients for the germination and branching of fruit trees, mainly to expand the crown and promote the development of new leaves. Therefore, the main fertilizer is nitrogen fertilizer-urea or ammonium bicarbonate, and the application time of accelerating germination fertilizer should be the most suitable before and after the agricultural solar term shock. That is, from the end of February to the beginning of March, the fruit trees begin to awaken and germinate after the thorn festival, which is the best time to apply germination fertilizer. Too early and too late can't achieve the expected effect.

Application period of accelerating germination fertilizer: accelerating germination fertilizer is the first nutrient absorbed by kiwifruit after root germination in spring. From the bleeding period in mid-March, kiwi fruit tree relied on its own nutrients to promote the transformation of root nutrients to leaves, and the ground temperature and light temperature gradually increased. Fertilization time is when fruit trees just germinate, and wheat fertilization is when wheat turns green. It is best to use it at this time, usually in the middle and late March of spring.

The purpose of fertilization is to promote axillary bud germination and branch growth, supplement nutrients for crops and increase yield. The principle of fertilization is the combination of chemical fertilizer and organic fertilizer. Chemical fertilizer is a formula fertilizer with high nitrogen, medium phosphorus and low potassium or urea and diammonium phosphate in proportion. The function of accelerating germination fertilizer is mainly to promote the growth of leaf buds. It is recommended to use compound fertilizers with high nitrogen, low phosphorus and low potassium, such as 30-5-5, 28-6-6 and 22-9-9.