摘要
为探明肥料互作对菊芋产量及品质的影响,以"南芋1号"为试验材料,通过正交田间试验,对氮(N)、磷(P)及其交互作用对菊芋块茎产量和品质的影响进行了研究。结果表明:N、P对菊芋块茎产量、干物质含量,总糖、还原糖和菊糖含量具有极显著影响(P<0.01);N、P交互作用对菊芋块茎产量、干物质和还原糖含量有显著影响(P<0.05),对块茎总糖和菊糖有极显著影响(P<0.01);当磷肥为135kg·hm-2时,与氮肥存在交互效应;当氮肥低于180kg·hm-2时,为正交互效应,表现出协同促进作用,氮肥高于180kg·hm-2时,为负交互效应,表现出拮抗作用;当氮肥为180kg·hm-2、磷肥为135kg·hm-2时,氮磷正交互效应增强,氮磷表现出协同促进作用,菊芋块茎产量最高,且菊芋块茎的干物质含量、总糖、还原糖和菊糖含量达到最高值,即菊芋块茎能达到最高产量和最优品质。综上,在山东莱州地区菊芋大田种植的基础施肥量宜为纯氮为180kg·hm-2、PO为135kg·hm-2。
In order to understand the effects of fertilizers interaction on the growth ot Jerusatem artichoke, a field experiment with orthogonal design was conducted to study the effects of nitrogen （N）, phosphorus （P） , and their interaction on the tuber yield and its quality of J. artichoke ＂Nanyu No. 1 ＂. Both N and P had significant effects on the tuber yield, its dry matter content, and total sugar, reducing sugar, and inulin contents （P〈0.01）. N and P interaction had signifi- cant effects on the tuber yield and its dry matter and reducing sugar contents （ P〈0.05 ） , and extremely significant effects on the tuber＇ s total sugar and inulin contents （P〈0.01）. When the P fertilization rate was 135 kg P2 05 hm-2, its interaction with N was positive （synergistic） when the N fertilization rate was less than 180 kg hm-2, but negative （antagonistic） when the N fertilization rate was above 180 kg hm-2. When the N fertilization rate was 180 kg hm-2 and the P fertilization rate was 135 kg P205 hm-2, the interactive effect of N and P increased, with the tuber yield and its dry matter, total sugar, reducing sugar, and inulin contents being the highest. Above all, the optimal basis fertilization for J. artichoke in Laizhou City of Shandong Province, East China would be 180 kg hm-z of N and 135 kg hm2 of P/O5.
出处
《生态学杂志》
CAS
CSCD
北大核心
2013年第2期363-367,共5页
Chinese Journal of Ecology
基金
国家自然科学基金项目(31201692)
公益性行业(农业)科研专项经费项目(200903001-05)
国家科技支撑项目(2011BAD13B09)
中央高校基本业务费项目(Y0201100249)
教育部博士点基金(20100097120016)
江苏省科技支撑项目(BE2010305和BE2011368)资助
关键词
菊芋
氮肥
磷肥
干物质
糖
产量
Jerusalem artichoke
nitrogen fertilizer, phosphorus fertilizer
dry matter
sugar
yield.
作者简介
孙晓娥，女，1987年生，硕士，主要从事植物营养生理研究。E—mail：xiaoepanpapn@126．com
通讯作者E-mail：longxiaohua@njau．edu．cn
