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在江苏泰兴市高沙土地区进行了银杏喷施NFC叶面肥的试验研究。试验结果表明: 1、喷施NFC叶面肥对银杏幼苗生长增量可提高12.25％～25.69％,对初果树主枝增长可提高8.54％～24.42％,表现出明显促进银杏营养生长的作用。 2、喷施NFC叶面肥增加银杏的白果单粒重0.025克～0.295克,提高出核率0.3％～2.06％,1～2级果率1.56％～18.16％,表现出良好的促进银杏品质和经济收益的作用。 3、喷施NFC叶面肥的浓度以50mg·L~(-1)为好,喷施时间以银杏营养生长和生殖生长旺盛期的5月至6月为佳。 4、生长型银杏以NFC_2型较好,而NFC_4,型则由于低成本可广泛应用。
The experiment of spray spraying NFC foliar fertilizer on Ginkgo biloba was carried out in Gaosha soil area in Taixing, Jiangsu Province. The results showed that: (1) Spraying NFC foliar fertilizer increased the growth increment of ginkgo seedlings by 12.25% -25.69%, and increased the primary branch growth rate by 8.54% -24.42%, which showed the effect of promoting the vegetative growth of ginkgo significantly. Spraying NFC foliar fertilizer increased ginkgo ginkgo single grain weight of 0.025 grams to 0.295 grams, increased the nuclear yield of 0.3% ~ 2.06%, 1 ~ 2 grade fruit rate of 1.56% ~ 18.16%, showing good quality of ginkgo And the economic benefits of the role. Spraying NFC foliar concentration at 50mg · L -1 was better, and spraying time was better from May to June when ginkgo vegetative and reproductive growth were exuberant. 4, growing ginkgo NFC_2 type is better, while NFC_4, type due to low cost can be widely used.