How to scientifically manage pineapple autumn fruit after flowering?
How to manage pineapple autumn fruit after flowering? Please explain in detail. For the management of pineapple autumn fruit after flowering, you can refer to the following methods: 1. Pineapple fertilization: apply more potassium fertilizer. Pineapples like potassium, and after flowering and fruiting they need even more potassium fertilizer: applying more potassium fertilizer after pineapple autumn fruit flowering can not only make the fruit expand rapidly and ripen fully, increase sugar content, raise yield and improve quality, but also enhance drought resistance, cold resistance, storage tolerance and transport tolerance = therefore.
How to manage pineapple autumn fruit after flowering? Please explain in detailFor the management of pineapple autumn fruit after flowering, you can refer to the following methods:
1. Pineapple fertilization:
Apply more potassium fertilizer. Pineapples like potassium, and after flowering and fruiting they need even more potassium fertilizer: applying more potassium fertilizer after pineapple autumn fruit flowering can not only make the fruit expand rapidly and ripen fully, increase sugar content, raise yield and improve quality, but also enhance drought resistance, cold resistance, storage tolerance and transport tolerance = therefore.
After the pineapple autumn fruit flowers, apply a potassium fertilizer promptly once, each time applying 45-50 grams of potassium chloride or potassium sulfate per plant, broadcast after rain. Or mix with 2-3 kg of clean water and evenly pour it into the soil around the roots.
2. Removing the crown bud from pineapple:
Remove the crown bud. About 15-20 days after the pineapple autumn fruit flowers, the crown bud at the top of the fruit should be removed promptly to reduce useless nutrient consumption and concentrate nutrients for fruit development. When removing the crown bud, grasp the base of the crown bud with your hand and gently twist it left and right to remove it.
3. Pineapple pest and disease control:
Pineapple autumn fruit is easily harmed by pests and diseases such as black rot, heart rot, black heart disease, anthracnose, red spider mites, scale insects, aphids, crickets and so on. This causes the leaves to lose green and turn yellow, and the fruit to rot and deteriorate.
After removing the crown bud from the pineapple autumn fruit, promptly spray the wound once with an 800-fold methyl thiophanate aqueous solution to prevent infection by pathogens. After the pineapple autumn fruit flowers, every 10-15 days you must spray the leaves once with a mixed solution of 1000-fold chlorpyrifos and 800-fold methyl thiophanate, or a mixed solution of 1000-fold dichlorvos and 800-fold dufulin, or a mixed solution of 800-fold trichlorfon and 600-fold aluminum tris, spraying 2-3 times in a row, evenly wetting all leaves and fruit, until water droplets begin to drip down, to kill various pests and diseases.
4. Pineapple soil mounding:
Mounding soil for coverage. During the flowering and fruiting period of pineapple autumn fruit, it is already autumn with large day-night temperature differences. If the weather is dry, it greatly affects fruit expansion. You must promptly use composted and decomposed garbage fertilizer and pond mud, burnt soil or other mixed soil fertilizers to mound around the roots, and cover the soil with various weeds or dry rice straw, with the grass 8-10 cm thick, to cover exposed roots, enrich the soil, reduce water loss, protect the roots, and help the fruit expand and ripen.
5. Pineapple foliar topdressing:
Foliar topdressing combined with spraying plant growth regulators. After the pineapple autumn fruit flowers and before removing the crown bud, you must spray the leaves once every 7-10 days with a mixed solution of 0.1% magnesium sulfate, 0.2% urea, 0.3% potassium dihydrogen phosphate and 1000-fold naphthalene acetic acid, spraying 2-3 times in a row; after removing the crown bud from the pineapple autumn fruit, every 7.
Spray the leaves once every 10 days with a mixed solution of 1000-fold cytokinin, 1000-fold nucleotide and 1000-fold gibberellic acid, spraying 2-3 times in a row. Evenly wet all leaves and fruit, until water droplets begin to drip down, to supplement nutrients through the leaves, improve the plant's nutritional level, and promote fruit expansion and ripening.
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