T/BSGC 018-2024 Honeybee Pollination Management Technical Specifications for Plum Blossoms and Fruits

Scope

Main Technical Content: 4. Pollination 4.1 Pollination Varieties 4.1.1 Select varieties with an S genotype (e.g., Phoenix Li) that differ from Fengtang Li in flowering period, can significantly increase fruit set and yield, and are compatible with pollinating varieties. 4.1.2 Configuration 4.1.2.1 For new orchards, arrange pollinating trees and Fengtang Li in a centralized pattern at a ratio of 8:1. See Appendix A for configuration methods. 4.1.2.2 For orchards without pollinating varieties, graft pollinating branches onto the upper part of the crown. Graft one branch every three trees, with each branch grafted onto two to three branches to form one to two pollinating branch groups. 4.2 Introduction of Bees 2–3 days before flowering, introduce two boxes of Chinese honeybees per 1 hectare of orchard. Transportation and pollination management follow NY/T 1160 regulations. 4.3 Artificial Pollination 4.3.1 Timing: When no pollinating varieties are available or during cold, rainy weather, conduct artificial pollination when at least 30% of flowers have opened. 4.3.2 Method: Mix 1 part of pollen with 3–5 parts of additives (starch or stone pine powder) and shake manually. Complete pollination within 2–3 days. 5. Fruit Retention 5.1 Pre-flowering irrigation: Conduct a thorough irrigation once before flower bud swelling. 5.2 Fruit retention: Spray Brassinosteroid or other resistance-enhancing agents on flowers when encountering low temperatures after 30% flowering. At 30% flowering, spray 0.2% boric acid or 0.3% borax solution (50–75 kg/667 m2). 5.3 Fruit preservation: Apply nitrogen, phosphorus, and potassium-based multi-element foliar fertilizer every 7–15 days after flowering. 6. Thinning Fruits 6.1 Timing: Start thinning 40 days after flowering and complete before fruit hardening. 6.2 Method: 6.2.1 Follow the principle of "inner to outer, top to bottom". 6.2.2 First remove small, diseased, or deformed fruits; then remove upward-fa

Development Information

Related Standards