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湖南桃江县有茶园87000亩,是全国主要产茶县之一。然而,近几年来,由于放松了茶园管理,茶园施肥少和肥料品种单一等问题非常突出,导致了茶叶单产和品质的下降。为改变这一现状,该县从1991年开始引进了中国科学院长沙农业现代化研究所研制的AM系列茶树专用叶面肥,进行应用试验和示范推广,取得了良好效果,现将试验结果作一简报。 一、试验方法 试验设在桃江县双江乡近芲村茶场进行,供试茶园土壤为板页岩母质发育的红黄壤,茶树品种为安化群体种,并于1989年实施了重修剪。试验分年度设置了以下内容。 1.不同叶面肥比较试验 1991年8月设计5个处理:①AM903;②AM921;③AM922;④叶面宝(广西博白县沙河叶面宝厂生产);⑤清水(对照)。三种AM系列叶面肥的喷施浓度均为250倍液,叶面宝为1000倍液。试验重复3次,随机区组排列,小区面积0.2亩,每小区喷液量10kg。 2.AM903叶面肥不同使用浓度的比较试验。 在1991年不同叶面肥比较试验的基础上,1992年8月选用了效果较好的AM903叶面肥进行不同浓
Taojiang County, Hunan Province has 87,000 acres of tea plantations, is one of the major tea producing counties. However, in recent years, due to the relaxation of the management of tea plantations, the problems of less fertilizer in the tea plantations and single varieties of fertilizers have become prominent, leading to a drop in the yield and quality of tea. In order to change this status quo, the county introduced the AM series special foliar fertilizer for tea plant developed by Changsha Institute of Agricultural Modernization, Chinese Academy of Sciences from 1991 to carry out application test and demonstration and popularization, and achieved good results. . Test Method The experiment was conducted in the tea plantation near Jinhua Village, Shuangjiang Township, Taojiang County. The tea plantation soil was red-yellow soil with shale parent material development. The tea varieties were of Anhua Group, and the pruning was carried out in 1989. The test is divided into the following year. 1. Comparison experiment of different foliar fertilizer In August, 1991, five treatments were designed: ①AM903; ②AM921; ③AM922; ④Yupengbao (Guangxi Bobai County Shahe foliar factory production); ⑤Water water (control). Three kinds of AM series foliar spray concentration of 250 times, foliar treasure 1000 times solution. The experiment was repeated 3 times, random block arrangement, the plot area of 0.2 acres, each district spray volume 10kg. 2.AM903 foliar application of different concentrations of comparative test. Based on the comparative experiments of different foliar fertilizers in 1991, AM903 foliar fertilizer with better effect was selected for different concentrations in August 1992