How to fertilize the pomelo trees that have borne fruit in spring?
Spring (February-March) to apply a good spring shoot flowering fertilizer. At this time, fertilization can promote the spring shoots to grow strong, provide nutrients for the flowering and fruiting of the current year, and lay the foundation for the formation of strong spring shoots and fruiting mother branches in the next year, overcome the big and small years, and achieve high and stable yield. This time, quick-acting nitrogen fertilizer (human and livestock fertilizer, urea, carbon and ammonia) is mainly used, accounting for 20% of the annual fertilizer application. Generally, urea 0.1-0.2kg or carbon ammonia 0.2-0.4kg, human and animal fertilizer 10- 15kg, or compound fertilizer 0.2-0.3kg are applied to each plant of 4-10 years old.
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Causes and treatment of fruit drop of golden pomelo in cloudy and rainy days
The reason for fruit drop is mainly due to the lack of flower thinning and insufficient application of Xiehua fertilizer in the early stage, and at present, pomelo is still in the physiological fruit drop stage, proper spraying of foliar fertilizer can alleviate fruit drop. However, fruit drop is only one aspect, a series of diseases caused by overcast and rainy weather is also a problem that can not be ignored, at this stage, anthracnose of pomelo, brown rot.
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Characteristics and cultivation techniques of sweet pomelo
Sweet pomelo is a new variety of tangerine introduced from Japan in 1998, and it has been successfully planted in our city. Sweet pomelo has five advantages, such as convenient management, excellent flavor, high yield, resistance to storage and transportation, and strong cold resistance. Among the late-ripening citrus varieties, it is the only one that can be eaten immediately and is deeply loved by fruit growers and consumers. Sweet pomelo at 20.
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