What medicine works well to improve the fruit set rate of grapes?
What medicine is good for improving the fruit set rate of grapes? What other methods can improve the fruit set rate of grapes? We also ask netizens with grape-growing experience to help introduce this. Growing grapes has good economic benefits. However, due to the influence of variety factors and adverse factors such as temperature, humidity, light and water, grapes often have poor fruit set, resulting in...
What medicine is good for improving the fruit set rate of grapes? What other methods can improve the fruit set rate of grapes? We also ask netizens with grape-growing experience to help introduce thisGrowing grapes has good economic benefits. However, due to the influence of variety factors and adverse factors such as temperature, humidity, light and water, grapes often have poor fruit set, with serious flower drop and fruit drop, which reduces yield, lowers quality and reduces economic benefits. Therefore, to achieve high-quality and high-yield grapes, effective measures should be taken in the management of the flowering and fruiting period. Zhongdiwang has compiled the methods for improving the fruit set rate of grapes and listed them below for netizens' reference.
Method one,During the rapid elongation period of the inflorescence before flowering, about one week before flowering, use your hands to pinch off the tip of the inflorescence, accounting for 1/5-1/3 of the inflorescence length, and at the same time remove the secondary inflorescences and pinch off about 1/2 of the first branch and the second branch of the inflorescence, so that the inflorescence forms a short cylindrical shape, which is conducive to improving the fruit set rate, increasing berry weight, making the cluster become a compact conical shape, and improving the commercial appearance quality.
Method two, spraying boron fertilizer, spray once with a 0.2%-0.3% boric acid or 0.2% borax solution before grape flowering, spraying once every 5 days, for 2-3 consecutive sprays.
Method three, spraying gibberellin, during the full flowering period of grapes, dipping the inflorescence in or spraying with a 25-40 ug/g gibberellin solution can improve the fruit set rate and can also make the fruit mature 15 days earlier.
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