水肥耦合条件与茶树生长关系组成分析  

Relations of Growth of Tea Plants Under the Condition of Water and Fertilizer Coupling

作　　者：丁明来 傅德龙[2] 孙立涛 

机构地区：[1]山东省日照市岚山区巨峰镇农技站,山东日照276812 [2]青岛农业大学茶叶研究所,山东青岛266109 [3]即墨农业局,山东青岛266200

出　　处：《中国农学通报》2013年第31期137-141,共5页Chinese Agricultural Science Bulletin

基　　金：山东省科技攻关项目"茶树适密适矮区田栽培高效低耗肥水供给技术体系研究与示范"(2009GG10009028)

摘　　要：以1年生茶树‘乌牛早’为试验材料,利用盆栽的方法,采用＂311-B＂D饱和最优设计,建立三元二次多项式方程,探讨茶树生长关系组成与氮肥、磷肥及灌水用量间的关系,研究水肥耦合对茶树生长的影响,找到水肥调控的最佳组合,为指导茶园的田间管理提供参考。因素分析结果表明,N、P、水3个因素对茶树生物产量的耦合效应显著,各单因素的作用效应顺序为：N（x1）〉水（x3）〉P（x2）;各因素交互作用效应顺序为：N水〉P水〉NP。本试验条件下以施氮肥0.485 g/盆,磷肥0.274 g/盆,每4~5天一次灌水,可以使茶苗达到最高生物产量值。With 311-B optimized saturation design, the regressive math model was set up based on the relations of plant height and new shoot length and dry weight of tea plants under the condition of water fertilizer coupling. Analysis showed that the interaction effects among these factors were positive on the dry weight of tea plants with the influenced order as N and water〉P and water〉N and P, and the influence of single factor was N（xl） 〉 water（x3） 〉P（x2）. The optimum combinations of N and P were 0.485 g/pot and 0.274 g/pot, and the irrigation frequency for four to five days every time under the conditions of this experiment.

关 键 词：茶树 水肥耦合 生物产量 

分 类 号：S365[农业科学—作物栽培与耕作技术] S571.1[农业科学—农艺学]