How to Fertilize Nanguo Pears? Detailed Scientific Fertilization Methods
Nanguo pear is a specialty of Liaoning, a fruit variety that can only be grown in uniquely iron-rich soil, and enjoys the reputation of “king of pears”. So, what fertilization methods are there for Nanguo pears? Let's find out together!
1. Nutrient requirements
The nutritional needs of Nanguo pears are relatively comprehensive. Among them, the demand for nitrogen fertilizer is relatively large, followed by phosphorus and potassium fertilizers. Sufficient fertilizer can provide the nutrients needed for the growth of Nanguo pears, and during the growth of Nanguo pears, there is also a demand for trace elements, such as zinc, boron, etc. If trace elements are lacking, it will affect the growth of Nanguo pears in various aspects. For example, a zinc deficiency will affect the growth of leaves, causing the leaves to be dull and lusterless, thin, small and weak, insufficient accumulation of photosynthetic substances in the tree body, and reducing the rate of flowers and fruits.
2. Apply sufficient base fertilizer
Base fertilizer is an absolutely indispensable fertilizer when planting Nanguo pears. It is generally applied after the Nanguo pears are harvested. This period is also the peak growth period for the roots of Nanguo pear trees, and applying base fertilizer in autumn allows it to be fully utilized in the spring of the following year, with a relatively high conversion rate. The base fertilizer is generally mainly farmyard manure, combined with an appropriate amount of phosphate fertilizer. If the tree is older, nitrogen fertilizer can be appropriately increased to promote the recovery of tree vigor after harvest. The base fertilizer is best combined with land preparation, applying the base fertilizer deep into the soil at about 45 cm, mainly by trench application, hole application and ring application, to ensure that the nutrients needed for the growth of Nanguo pears are met.
3. Timely topdressing
During the planting period of Nanguo pears, topdressing is required at least three times a year, respectively before bud break, during flower bud differentiation and during the expansion period, because the fertilizer demand of Nanguo pear trees is relatively large during these three periods. When topdressing for the first time, attention should be paid to controlling the amount of nitrogen fertilizer, with the proportion controlled at about 1/5, not too much, to prevent excessive vegetative growth. The second and third topdressing are mainly potassium fertilizer, with the purpose of promoting fruit expansion and improving fruit quality. When topdressing, attention should be paid to controlling the amount of topdressing according to the soil's ability to retain fertilizer and water, to prevent excessive topdressing, which may cause fertilizer damage and increase planting costs. When topdressing, it should be determined according to the size of the tree canopy, mainly by trench application, keeping a certain distance from the tree roots to prevent root burn.
4. Foliar topdressing
Foliar topdressing is mainly to meet the demand of Nanguo pears for trace elements during growth, and is generally mainly done by spraying foliar fertilizer. When spraying foliar fertilizer in autumn, nitrogen fertilizer is mainly used to improve the growth capacity of leaves and promote photosynthesis in leaves. Then appropriately spraying phosphorus and potassium fertilizers can improve the cold resistance and disease resistance of Nanguo pear trees and enhance the yield of Nanguo pear trees. When spraying foliar fertilizer, we mainly still need to carry out targeted spraying, paying attention to supplementing the trace elements lacking in Nanguo pears accordingly, to improve the yield and quality of Nanguo pears.
The above are the fertilization methods for Nanguo pears. Only by mastering the fertilization methods well can high-quality and high-yield Nanguo pears be produced. Everyone must learn them!