This year, some pear trees exhibited different degrees of secondary flowering in mid-October, and the tree vigor was relatively weak. The yield and quality of these pear trees will be affected next year.
The second flowering of the pear tree is that some of the shoots re-tap the long leaves in the autumn, and the flower buds latent on the shoots are broken and dormant and open. This part of the flower only consumes nutrients and can not result, thus it is also called invalid flower. Causes of secondary flowering of pear trees usually have three aspects. First, bad weather, second, extensive management, and third, malnutrition. Some pear trees were not harvested with fruit fertilizers. When this year's flowering results encountered rare persistent droughts and severe droughts and floods, they failed to timely apply fertilizer. Some of the flower buds that had been differentiated in the previous year were due to malnutrition in the early spring and should have been opened in the spring. However, it was delayed until the fall.
In order to reduce the loss caused by the second flowering, it is necessary to strengthen the management of pear orchard. Fertilizers in phases, with no fertilizer applied, may be supplemented before the end of November. Each farmhouse will have 3,000 to 4,000 kilograms of farmhouse manure or composted manure, with appropriate amounts of superphosphate and potassium chloride. After 2 years and 3 times, fertilizer is applied again. After the new leaves are developed, nitrogen fertilizer is used as the main ingredient. During fruit enlargement, multiple compound fertilizers are applied. In July and August, urea and potassium dihydrogen phosphate solution are applied to prevent and control pests. Thoroughly pruning to maintain the golden tree growth. The prevention and treatment of pests and diseases that are dominated by pear wood and black spot. Clean up dead branches, diseased shoots, and weeds in batches. Deeply turning the soil to promote root growth. Cover grass in pear orchards, preserve fertilizer, and improve soil. Improve irrigation and drainage conditions, clear channels, and ensure that pears can be filled with energy during the growth period.
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