In recent years, the second flowering phenomenon of orchards in autumn is more common, especially pear orchards and some poorly managed orange orchards, which are more common, in addition, peach and plum and some citrus and other fruit trees also have autumn re-flowering phenomenon, which seriously affects the yield, quality and economic benefits of the next year, and must take management measures on the orchard in time to prevent the next year's production reduction.
Reasons for flowering
Flowering in autumn is called return flowering by fruit growers. The main reasons for this flowering analysis are as follows: variety problems, improperly managed orchards are prone to autumn flowering, pest and disease damage, and weather factors.
Prevention and control measures
Heavy application of organic fertilizer to enhance the tree's strength. According to the growth characteristics of peach, pear and other fruit trees, fertilization should be applied at the stage of flower bud differentiation, and available nitrogen should be used as the main fertilizer, and phosphorus and potassium fertilizers should be applied. Timely fertilization and foliar fertilization are required in combination with growth during the growth period of fruit trees. If conditions permit, it is best to insist on soil modification and fertilization. That is, from September to November, the ditch is deeply buried in summer green manure, and from March to May, the ditch is deeply buried in winter green manure, so that the orchard is subsoiled and fertile, which can cultivate the tree potential and improve the stress resistance of the fruit tree.
Rational irrigation. Open drainage ditches for low-lying orchards, remove stagnant water in time when there is a lot of rain in summer, and timely divert water to resist drought and protect leaves when it is dry in autumn, cover the tree tray, and spray 0.3% potassium dihydrogen phosphate foliar fertilizer in time.
Do a good job of pest control. After the fruit tree enters the defoliation stage and before the spring budding, cut off the diseased and insect branches, overly dense branches, vigorous branches, diseased and insect fruits and sweep the fallen leaves, bury the ashes deeply after concentrated burning, and hit a 3-5 degree stone sulfur mixture after the winter defoliation to reduce the number of diseases and insects. In the growth period, do a good job of pest control during the critical period, and spray pesticides in time.
Treatment of secondary flowering. Fruit trees with a small number of flowers can be left to their own, and this happens on trees that are thriving, and a small amount of flowers blooms in autumn without much impact. For too many flower buds, it is necessary to take measures to control the growth, otherwise it will consume a lot of nutrients, weaken the tree momentum, is not conducive to overwintering, and is not conducive to improving the fruit setting rate of the next year. For citrus and other evergreen fruit trees with a large number of leafless branches, leafless branches, diseased branches, weak branches and canopy closed branches in autumn, they can be retracted or thinned to reduce nutrient consumption and improve ventilation and light transmission conditions. But prune lightly and do not move large branches. For deciduous fruit trees such as peaches and pears, flower buds can be removed or flowers and fruits can be removed. At the same time, it can be combined with some fast-acting nitrogen fertilizer to improve vegetative growth and inhibit the growth of flower buds. In addition, due to the long-term drought, the growth potential of the plant is weakened, the nutrient consumption of the tree body is more, and the autumn base fertilizer is not much, it is necessary to seize the favorable opportunity of high temperature in early winter, apply some farm fertilizer and available nitrogen, phosphorus, potassium fertilizer, and do a good job in orchard covering and frost prevention.
Fruit trees bloom in autumn, the reason is introduced here, I hope it will be helpful to everyone. If you want to buy high-quality and high-yield fruit trees, you can download the seed bank App, and the country's excellent fruit tree varieties are available for everyone to choose.
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