The Latest Three Principles of Autumn Orchard Fertilization
For orchards, autumn fertilization is the most critical, as it not only replenishes nutrients for fruit trees to overwinter, enabling them to survive the winter safely, but also lays a solid foundation for high yields the following year. However, the fertilization time and amount differ for different fruit trees and varieties, so we need to learn the “three looks, three choices, three combinations.” Now let's take a look at the principles of autumn orchard fertilization.
I. Three Looks
1. Look at tree vigor
⟦NL>For fruit trees with weaker vigor, increase the amount of fertilizer applied; for plants deficient in nutrients, use the corresponding trace elements, or apply Shibeimei, which can promote the root system's uptake of trace elements and effectively prevent physiological diseases of fruit trees.2. Second, look at soil nutrients
Test the orchard soil to understand the content of various nutrients in the soil, so that whatever is lacking is supplemented, and however much is lacking is supplemented by that amount.
3. Third, look at next year's target yield
In general, if next year's target yield is high, the autumn fertilization amount should be large; conversely, if the target is low, the fertilization amount should be correspondingly reduced. As for how anyone determines next year's target yield, the average yield of the orchard over the past few years can be used as the standard, and an increase of about 10%-15% is sufficient.
II. Three Choices
1. First, choose the fertilizer variety
According to the levels of nitrogen, phosphorus and potassium in the soil, and based on the principle of balancing supply and demand, choose a compound fertilizer with suitable nitrogen, phosphorus and potassium to balance nutrient supply and ensure safe and efficient crop growth. In addition, pay attention to the soil's pH and choose a suitable variety.
2. Second, choose the right fertilizer amount
On the basis of soil testing, and according to the fruit tree's fertilizer requirement, appropriately control the amount of fertilizer applied.
3. Third, choose the fertilization method
The fertilization method is very important in orchard production management. Common autumn fertilization methods include strip trench application, ring trench application, radial trench application, and hole application, among which strip trench application and ring trench application are generally suitable.
III. Three Combinations
First, the application of microbial bacterial fertilizer should be combined with the fertilizer applied; second, the application of large amounts of chemical fertilizer should be combined with trace element fertilizers; third, fertilization and watering should be combined, which can not only avoid concentrated fertilizer damaging the roots, but also improve fertilizer utilization, so that the fertilizer is better absorbed by the root system.
The above is an introduction to the three principles of autumn orchard fertilization. We hope it can help you. To learn more related knowledge, please stay tuned to us.