What are the key technical points for pre-flowering management of Shatian pomelo?
How should Shatian pomelo be managed before flowering? We ask knowledgeable readers to help explain. Before Shatian pomelo flowers, fertilizer and water management and pest and disease control should be done in a timely manner, so as to strengthen the tree vigor, raise the tree's nutrient level, strengthen the flower buds, improve the buds' stress resistance, reduce pest and disease damage, protect the buds, and increase the fruit-setting rate...
How should Shatian pomelo be managed before flowering? We ask knowledgeable readers to help explain.Shatian pomelo should have timely fertilizer and water management and pest and disease control before flowering, so as to strengthen tree vigor, raise the tree's nutrient level, strengthen flower buds, improve the buds' stress resistance, reduce pest and disease damage, protect the buds, and increase the fruit-setting rate. Seed Ground Network has compiled the pre-flowering fertilization and pest and disease control for Shatian pomelo, listed below for readers' reference.
1. Pre-flowering fertilization of Shatian pomelo:
Apply pre-flowering fertilizer before the flower buds appear, mainly organic fertilizer plus phosphorus and potassium fertilizer. For bearing trees over five years old, apply 0.5-1 kg of monopotassium phosphate and 15-20 kg of decomposed composted human, poultry, and livestock manure per tree. Dig a ring trench 15-20 cm deep and 30-40 cm wide around the tree canopy drip line, mix the fertilizer thoroughly and evenly, apply it into the trench, and cover with soil.
If dry weather occurs after fertilization, promptly drench with clean water or decomposed composted manure water, 50-60 kg per tree, to promote the dissolution and transformation of the fertilizer.
2. Pre-flowering pest and disease control of Shatian pomelo:
Before Shatian pomelo flowers, focus on controlling red spider mites, anthracnose, scale insects, canker, blossom midge, and other pests and diseases. When the flower buds have just turned white, when the buds are the size of a soybean, and when the buds are about to open, spray once each time with a mixture of 800x Huishuangte, 3000x Saomanjing, and 1500x Jiesijing, or a mixture of 800x thiophanate-methyl, 800x dicofol, and 1000x Supusha, to protect the buds.
3. Foliar topdressing of Shatian pomelo:
Along with pest and disease control, add a mixture of 1000x Huolisu, 5000x natural brassin, and 300x monopotassium phosphate and spray together. This can both strengthen the disease and pest control effect and strengthen the flower buds, improving the buds' ability to resist the low-temperature, rainy weather of spring.
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