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“EF”是从桉树中提取的一种以黄酮类为主的天然化合物的简称,由中国林科院林产化工研究所和广东省雷州林业局共同研制成功,83年通过了“EF”提取工艺和产品质量的技术鉴定、定为新型植物生长促进剂,85年通过在蔬菜、葡萄、棉花、油菜等四种作物上的应用鉴定。它具有增强植株光合作用、促进花芽分化和茎叶生长、增强植物体内干物质积累的功效,且无毒无害,使用方便。84年我县辛庄镇在葡萄上进行试验,取得助长、增产的显著效果,85年大面积推广应用。二年的试验应用证明,EF植物生长促进剂初步可列为葡萄常规化丰产措施。为了进一步了解植物生长促进剂“EF”对葡萄生长的影响,摸清其增产规律,找出适宜的使用方法,84年在本县辛庄东南、西北、湖汪和大宋家等果园,对本地葡萄主栽品种——白雅、白羽等进行了不同浓度、不同次数的喷布试验,并以喷水、喷硼砂、尿素和硼砂尿素混合液作对比,通过一年来的试验观察,各试点助长、增产效果明显。85年在全镇推广应用5100亩,葡萄总产276.7万公斤,比84年增产132万公斤,增长91.2％。现将辛庄东南葡萄园84年试验调查情况总结如下:
“EF” is short for natural flavonoid-based compound extracted from eucalyptus. It was jointly developed by Institute of Forest Products and Chemical Industry of China Academy of Forestry and Leizhou Forestry Bureau of Guangdong Province. It passed “EF” extraction process in 1983 And product quality of the technical appraisal, as a new plant growth promoter, 85 years through the application of vegetables, grapes, cotton, rapeseed and other four crops identified. It has the function of enhancing the photosynthesis of plants, promoting flower bud differentiation and stem and leaf growth, and enhancing the accumulation of dry matter in plants, and is non-toxic, harmless and easy to use. In 1984, Xinzhuang Town, our county, experimented on grapes and obtained the remarkable effect of contributing to and boosting production. It has been popularized and applied in 85 years. Two years of experimental application shows that, EF plant growth promoter may initially be listed as a conventional yield measures of grapes. In order to further understand the plant growth promoter “EF” on the growth of grapes to ascertain its law of increase production and find out the appropriate use of 84 years in the county Xinzhuang southeast, northwest, The main cultivars of native grapes, Baiyayan and Baiyu, were sprayed with different concentrations and different times of spray test, and compared with water spray, borax spray, urea and borax urea mixture. Through the experimental observation in one year, Promote, increase production is obvious. 85 years in the town to promote the use of 5100 acres, 2767000 kg of grapes, an increase of more than 840000 kilograms of 1320000 kilograms, grow 91.2%. Now Sin Chu southeast of 84 years of experimental investigation of the vineyard is summarized as follows: