低丘红壤茶园土壤养分限制因子及平衡施肥研究  

Study on the nutrient limiting factors and balanced fertilization in red tea soils of low-hilly region:

作　　者：韩文炎[1] 许允文[1] 

机构地区：[1]中国农业科学院茶叶研究所

出　　处：《浙江农业学报》1995年第5期387-391,共5页Acta Agriculturae Zhejiangensis

摘　　要：本文采用土壤养分限制因子系统研究法，通过实验室分析，吸附试验，温室盆栽和平衡施肥，对低丘红壤茶园土壤养分障碍因子进行了系统研究。结果表明，该法能较好地评价土壤养分状况，提供的信息对于茶园平衡施肥和高产研究具有一定的指导意义。杭州黄泥土的主要养分障碍因子是氮、钾、磷，钙和镁可能也是限制因子；龙游黄筋泥是氮、钾、铜和磷。成龄采摘茶园施用Ｎ∶Ｐ２Ｏ５∶Ｋ２Ｏ的比例以４∶１∶１左右为宜。The nutrient limiting factors in red tea soils from Hangzhou and Longyou of Zhejiang Province was investigated using the “systematic approach” provided by Hunter (1980) and later modified by Portch (1988), in which laboratory analysis, sorption studies, pot culture with sorghum as indicator plant and balanced fertilization trials in 1993 and 1994 were conducted. The results showed that the status of tea soil fertility could be well evaluated by this method and the infomation obtained with systematic approach may provide useful guidelines in establishing field trials of balanced fertilization for tea and in the studies towards maximum yield. The main nutrient limiting factoras existing were N, K, P and contained Ca, Mg on red soil from Hangzhou and were N, K, Cu and P on Longyou red soil. The recommded formula of N, P 2 O 5 and K 2 O was 4∶1∶1 for tea fertilization.

关 键 词：茶园 低丘红壤 养分限制因子 平衡施肥 

分 类 号：S571.106.2[农业科学—茶叶生产加工]