热带作物学报2017，Vol.38Issue(11)：2028-2033,6.DOI:10.3969/j.issn.1000-2561.2017.11.006
毛竹冬笋微量元素吸收与积累规律
Absorption and Accumulation Rules of Trace Elements in Winter Shoot of Phyllostachys edulis
摘要
Abstract
In this paper,four main trace elements (Fe,Mn,Cu and Zn) absorption and accumulation characteristic for winter shoots of P.edulis were studied in early,mid and late growing period,and regression models between Fe,Mn,Cu and Zn accumulation (Y,g) and shoot height (H,cm) and diameter (d,cm) were established in each growing period to better understanding the interrelations between nutrient accumulation and yield capacity in the whole growing period of winter shoots.The datas were got through full harvest method of winter shoots on fixed samples.The results showed that the accumulation characteristic had different from Fe,Mn,Cu and Zn with the growth of winter shoot.In four trace elements,Fe and Mn content were significantly higher than that of Zn and Cu in each growing period of winter shoots.In stand scale,Mn in winter shoots accumulated faster gradually,and Zn accumulation in early and mid period was gentle,but rapidly increased in the late.However,Fe and Cu accumulation showed a smaller proportion in mid growing period.In the late growing period of winter shoots,Fe,Mn,Cu and Zn accumulation had reached 37.17,24.53,0.71、7.49g/hm2.The coefficient of determination of model in Fe,Mn,Cu and Zn accumulation (Y,g) in single winter shoot for each growing period to shoot height (H,cm)and diameter (d,cm) was 0.85～0.95,indicating the high correlation H and d with Y.As shoots growing,absorption and accumulation speed of Mn increased continuously,while Fe,Zn and Cu absorption was mainly concentrated in the late growing period.The results could provide theoretical guidance for nutrient management of P.edulis in winter shoot growing period.关键词
毛竹/冬笋/Fe/Mn/Cu/Zn/积累Key words
Phyllostachys edulis/winter shoot/Fe/Mn/Cu/Zn/accumulation分类
农业科技引用本文复制引用
苏文会,封焕英,范少辉,曾宪礼,刘广路..毛竹冬笋微量元素吸收与积累规律[J].热带作物学报,2017,38(11):2028-2033,6.基金项目
林业公益性行业科研专项(No.201404408) （No.201404408）
基本科研业务费专项(No.1632017003). （No.1632017003）
