人工栽培金银花的生物量和元素含量测定及其经济效益估算

采集广西忻城县红渡镇金银花(Lonicera quaponica)种植示范区人工栽培3年生的金银花样品,测定生物量及各器官的主要元素含量,并估算金银花的经济效益.结果表明,金银花的生物生产力是藤茎(0.79t·hm-2·a-1)＞叶子(0.40t·hm-2·a-1)＞根(0.33 t·hm-2·a-1)＞花(0.30 t·hm-2·a-1);金银花的主要元素(N、P、K)平均含量显示花(5.68 kg·hm-2)＞叶子(4.60kg·hm-2)＞藤茎(3.06kg·hm-2)＞根(2.93 t·hm-2);金银花年均产干花1.78 t·hm-2,年均经济收入每公顷35600元.

Examination of Biomass and Contents of Elements and Estimate of Economic Benefits of Cultivated Lonicera japonica

Samples of 3-year old Lonicera japonica were collected from Hongdu town,Xincheng County,which is a cultivative demonstration area in Guangxi.Biomass and contents of elements were made and economic benefits of cultivated Lonicera japonica was investigated.The results showed that:(1) The net biomass of vine and its branches were 0.79t·hm^-2·a^-1,and the leaves were 0.40t·hm^-2·a^-1,root were 0.33t·hm^-2·a^-1,flowers were 0.30t·hm^-2·a^-1;(2) The mean contents of main elements(N,P,K) of flower,leaves,vines and roots were 5.68kg·hm^-2,4.60kg·hm^-2,3.06 kg·hm^-2 and 2.93 kg·hm^-2,respectively;(3) The mean dry flowers yield was 1.78t·hm^-2·a^-1,mean income was 35600 Yuan·hm^-2·a^-1.