亚热带典型红壤丘陵地区饲用杂交构树生长动态  

Growth Dynamics of Hybrid Broussonetia Papyrifera in Typical Subtropical Red Soil Hilly Area

作　　者：吴照祥 李彦强[1] 刘巧丽 李辉虎 钟永达[1] 刘杰 余发新[1] WU Zhaoxiang;LI Yanqiang;LIU Qiaoli;LI Huihu;ZHONG Yongda;LIU Jie;YU Faxin(Institute of Biological Resources,Jiangxi Academy of Sciences,330096,Nanchang,PRC)

机构地区：[1]江西省科学院生物资源研究所,南昌330096

出　　处：《江西科学》2020年第2期183-187,共5页Jiangxi Science

基　　金：2018年江西省科学院创新成果产业化示范项目(2018-YCYFP-01)。

摘　　要：针对亚热带典型红壤丘陵地区,开展杂交构树引种栽培试验,研究其各个构件不同收获期生物量积累以及水分含量、碳氮比的动态变化。结果表明,杂交构树对亚热带典型红壤丘陵地区水热条件具有良好适应性,其各个构件形态指标、生物量以及全株总能量随着种植时间延长而增加,在不施肥情况下平均单株最大干重达到152.26 g。进一步分析发现,杂交构树粗灰分含量与氮素含量以及能量密度与碳素含量呈显著相关关系(P<0.05)。综合分析,为了取得杂交构树种植经济效益最大化,需要加强田间管理水平来增加其生物学产量和营养含量。Aiming at typical subtropical red soil hilly area,the study on the introduction experiment of hybrid Broussonetia papyrifera was carried out,and biomass accumulation,dynamics of water content and C/N ratio of components in the different growth periods were also investigated.The result showed that hybrid B.papyrifera exhibited good adaptability to the hydrothermal conditions in subtropical red soil hilly area.The morphological component index,biomass and total energy of the whole plant increased with the planting time,and maximum dry weight per plant without fertilization reached 152.26 g.Further analysis showed that crude ash content correlated positively with N content,and also energy content with C content(P<0.05).In total,to maximize the economic sense of planting hybrid B.papyrifera in subtropical red soil hilly area,field management should be strengthened to improve its biological yield and nutrient content.

关 键 词：杂交构树 木本饲料 生长动态 红壤丘陵地区 

分 类 号：S792.99[农业科学—林木遗传育种] S548[农业科学—林学]