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有些苹果品种,花期开花很多,但坐果很少,针对这一情况,往年花期有喷硼砂的、有喷尿素+硼砂的、有喷防落素,有喷防冻坐果灵的,究竟在花期喷哪一种提高坐果率好呢?我们在花期(红富士边花、中心花都开,新红星中心花已开而部分边花还未开)对几种生长调节剂进行了试验。试验药品 300倍的防冻坐果灵(化工部天津化工研究院研制)、
Some apple varieties, lotus flowering lot, but little fruit, in view of this situation, in previous years flowering borax, spray urea + borax, there are spray-resistant, there spray spray anti-freeze fruit Ling, A kind of improve the fruit set rate is good? We in the flowering (red Fuji side flower, the center of flowers are open, the new red star center flowers have been opened while part of the edge flower has not opened) on several growth regulators were tested. 300 times the test drug antifreeze sit fruit Ling (Ministry of Chemical Industry Tianjin Chemical Research Institute)