Most of the flowers of pomegranate are degraded flowers, and the total flowers that can be set aside are only about 10% of the total flowers. In order to promote fruit setting, increase production and improve quality, the following measures for flower protection and fruit protection can be adopted in production:
Foliar spray fertilizer in the early flowering stage of pomegranate, with 0.5% urea solution, 1% superphosphate calcium leaching solution, 0.3% potassium dihydrogen phosphate solution or 0.3% borax solution foliar spray, fruit set rate can be increased by 7-10%.
Sparse fruiting and degrading flowers will not only result in normal results, but also consume a lot of tree nutrients. Therefore, after the emergence of pomegranate, most of the bell-shaped flowers should be removed to reduce the consumption of nutrients when the cylindrical and bell-shaped flowers can be discerned; after the fruit is set, the pest, fruit, deformity, and late flowering are promptly removed. Fruit and fruit in clusters; the amount of thinning fruit depends on tree vigor, and the general result is long-lasting and sparse. When the results are small, only the pests and diseases are not sparse, and the fruit is not sparse; the old and weak trees are sparse, and the strong trees are sparse; practice It is proved that the earlier and more thoroughly the sparse buds are, the more obvious the effect of yield increase is; the fruit thinning can also make the fruit mature, and it is large and of good quality.
Artificial pollination Pomegranate self-flowering rate is very low, when flowering low temperature and rain, pollinating insects, artificial assistant pollination; pomegranate artificially assisted pollination, can increase fruit set rate 9.6%.
The method is: when the number of trees is small and the amount of pollination is small, the cylindrical flower can be directly pollinated by the newly opened bell-shaped flower, or the pollen can be collected from the normal flower of the pollinated tree and then given to the main plant tree by using a brush. The normal style of the open flower is pollinated, and if the flour is pollinated, the petal can be removed for marking. When the amount of pollination is large, a large number of normal and intermediate buds and flowers to be opened or initially opened must be collected from the pollinating tree in large quantities. Remove the anther from the petal, dry it in a dry, well-ventilated place with light, and make the anther crack. Then, put the shell in the desiccator and store it in the refrigerator. When pollinating, use a brush to pick and paint flowers; the amount of pollination depends on the tree, the crown is large, the tree vigor is strong, and the saplings and trees are pollinated to promote multiple results; the tree with small canopy, weak vigor, and old tree can be less Pollination to rejuvenate tree vigor and improve fruit quality.
Timely control of diseases and insect pests Diseases of the pomegranate fruit are mainly dry rot. In July, it was the epidemic period. It can be controlled by 1:1:160 Bordeaux mixture or 40% carbendazim suspension with 800 times spray; the pests are mainly peach aphid. Peach and fruit borer, both larvae into the fruit to eat damage, affect the fruit yield and quality; control peach aphid, can be used in adulthood and spawning period, with 50% to kill the pine or 50% phoxim Emulsion 1000 times liquid spray control, can also be used 50% phoxim EC or 90% crystal trichlorfon, add 100 parts of fine soil, made of medicine mud, blocking the bract; prevention and control of peach fruit borer, can be found in the larvae ( June-July) Sprinkle the surface of the tree under the canopy with 50% phoxim 300 times, spray the tree trays after spraying, or spray it with 2.5% enemies or 20% cypermethrin at the age of the adult. Liquid for prevention and treatment.
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