What kind of fertilizer is good for the base fertilizer under apple trees
Abstract: This article discusses the topic of what kind of fertilizer is good for the base fertilizer under apple trees. The following is an introduction for you.
What kind of fertilizer is good for the base fertilizer under apple trees (application method of base fertilizer)
The base fertilizer for apple trees should mainly be organic fertilizer, which can supply various nutrients to the tree body for a longer period. Generally, it is better to apply the base fertilizer from mid-September to mid-October in autumn, the earlier the better. It is recommended to use the annular trench fertilization method for young apple trees to apply the base fertilizer, and for mature apple trees, it is best to use strip trenches or radial trenches.
Selection of base fertilizer for apple trees
It is generally better to apply the base fertilizer from mid-September to mid-October in autumn, the earlier the better. The effect of applying base fertilizer in autumn is better than in spring, and applying it in early autumn is better than in late autumn or winter.
The base fertilizer for apple trees should be mainly organic, which can supply various nutrients to the tree body for a longer period. Organic fertilizer must be fully decomposed before it can be used on crops.
How to apply base fertilizer to apple trees
It is recommended to use the annular trench fertilization method for young apple trees to apply the base fertilizer, usually with a trench width of 50-60 cm and a depth of 60-80 cm, and then each year's fertilization should be extended outward.
If it is a mature apple tree, it is best to use strip trenches or radial trenches to apply the base fertilizer, usually with a width and depth of 50-60 cm. The above methods should be alternated and rotated every other year.
How much base fertilizer to apply to apple trees1. If the amount of base fertilizer is calculated according to tree age, young trees should apply more than 1000 kg of organic fertilizer per mu, 25-50 kg of superphosphate, and 5-10 kg of urea.
2. For young fruit trees, it usually requires 1500-2000 kg of organic fertilizer per mu, 50-75 kg of superphosphate, and about 15-20 kg of urea.
3. For mature fruit trees, it is best to apply more than 4000 kg of organic fertilizer per mu, 150-180 kg of superphosphate, and 40-50 kg of urea.
How to top-dress base fertilizer for apple treesApple trees generally need to be top-dressed with fertilizer 3 times a year. The first application is before and after the trees sprout, with nitrogen fertilizer as the main ingredient. The second application is usually during the period of flower bud differentiation and fruit expansion, with phosphorus and potassium fertilizers as the main ingredients, mixed with nitrogen, phosphorus, and potassium. The third is in the later stage of fruit growth, with potassium fertilizer as the main ingredient.
This article shares specific details about what kind of fertilizer is good for the base fertilizer under apple trees and its application methods. I hope you will like it!