Loquat application of heat preservation and fruit fertility is at the right time
At present, loquat trees have gradually entered the period of young fruit growth and development, and the temperature has begun to drop, gradually entering the cold season, which is the most suitable time to apply heat preservation and strong fruit fertilizer. The timely application of this fertilizer can not only improve the cold resistance of loquat plant, prevent the fruit from frost and cold injury, but also promote the rapid expansion of fruit, increase the yield and improve the quality. The specific measures are as follows: when loquat trees begin to thank flowers and appear young fruits, apply heat preservation and strong fruit fertilizer, mainly high-quality organic fertilizer and complete fertilizer of nitrogen, phosphorus and potassium, increase phosphorus and potassium fertilizer and supplement magnesium fertilizer, 5-year-old trees, each tree applies 25 kilograms of mature ash manure by mixed retting of human and animal manure and plant ash, 1.5 kilograms of nitrogen, phosphorus and potassium (15-15-15) compound fertilizer, and 3 kilograms of calcium superphosphate or calcium magnesium phosphate fertilizer. Potassium chloride or potassium sulfate 1.0-1.5 kg, magnesium sulfate 0.5-1.0 kg, stir all the fertilizers fully and mix well, dig a ring ditch of 25 cm in depth and 30 cm in width around the crown drip line, spread the fertilizer evenly in the ring ditch, and cover the soil. In addition, 0.1% magnesium sulfate, 0.2% urea, 0.3% potassium dihydrogen phosphate, 600 times amino acid active liquid fertilizer and 1000 times triacontanol mixture should be sprayed 2 times three times, once every 7 days, to wet all branches, leaves and fruits inside and outside the crown evenly, so as to start dripping water droplets, and replenish organic matter, nitrogen, phosphorus, potassium and magnesium fertilizer from the leaves. It is beneficial to improve the cold resistance and overwintering ability of the plant and promote the rapid expansion of fruit.
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High yield and good pre-flowering Fertilizer for Loquat
The flowering period of loquat tree is as long as 3 months and blossoms from October to February next year. Generally speaking, the flowering stage of loquat tree is divided into three stages: the first flower blooms from October to November, the fruit is larger, the quality is good, but it is susceptible to cold; the second flower blooms from November to January of the following year, and the fruit quality is inferior to that of the head flower, but it has strong cold resistance and fruit setting rate.
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What are the symptoms of loquat sunburn
Symptoms of loquat sunburn: sunburn can occur in branches and fruits. Branch sunburn at the beginning of the bark shriveled and sunken, dry crack warped, after the disease enlarged into a coke, deep into the xylem, like burning. After the occurrence of sunburn, the sunburn flesh of the fruit was shrunken, and the diseased part showed a dark brown sunken dry spot, which was completely lost.
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