氮磷钾交互作用对2个菊芋品种生长及块茎产量的研究
毕业论文关键词：氮磷钾 菊芋 交互作用 块茎产量 生物量
Effects of nitrogen, phosphorus and potassium interaction on growth and tuber yield of 2 Jerusalem Artichoke Cultivars
Abstract：To investigate the effects of nitrogen, phosphorus and potassium fertilizer on the growth and tuber yield of Jerusalem artichoke, the plant height, stem diameter, tuber yield and other biomass of Two Jerusalem Artichoke cultivars ("South Jerusalem Artichoke No. 1" and "South Jerusalem Artichoke No.9") were obtained by orthogonal field experiment. Based on these data, the software SPSS19.0 was used to analyze the effects of nitrogen, phosphorus and potassium interaction on yield and quality of different Jerusalem artichoke cultivars. The results showed that the interaction of N, P and K had no significant effects on the biomass of two different Jerusalem artichoke cultivars. Only N fertilizer had a significant effect on the yield of "South Jerusalem Artichoke No. 1". In addition, the interaction between nitrogen, phosphorus and potassium fertilizer had the most productive level of "South Jerusalem Artichoke No. 1" under the N4 (180 kg/hm2), P2 (20 kg/hm2) and K4 ( 60 kg/hm2)levels, while "South Jerusalem Artichoke No. 9" achieved the highest yield under the interaction of three fertilizers at the N3 (120 kg/hm2), P4 (60 kg/hm2) and K2 (20 kg/hm2) levels.
Keywords: Nitrogen, phosphorus and potassium Jerusalem artichoke Interaction Tuber yield Biomass
目录
摘要 1
关键词 1
Abstract 1
Keywords 1
引言 1
1、材料与方法 3
1.1、试验材料与仪器 3
1.1.1、试验材料 3
1.1.2、试验仪器 3
1.2、试验地点 3
1.3、试验设计 3
1.4、测定项目及方法 4
1.5、数据处理 4
2、结果与分析 4
2.1、不同肥料作用对“南芋1号”生长情况及生物量的影响 4
2.2、不同肥料作用对“南芋9号”生长情况及生物量的影响 5
2.3、氮磷钾交互效应对不同菊芋品种块茎产量和生物量的方差分析 6
2.4、氮磷钾交互作用对两个品种菊芋块茎产量的影响 8
2.4.1、氮磷钾交互对“南芋1号”块茎产量的影响 8
2.4.2、氮磷钾交互效应对“南芋9号”产量的影响 9
3、讨论 9
4、结论 10
致谢 10
参考文献 11
氮磷钾交互作用对2个菊芋品种生长及块茎产量的研究
引言
菊芋是一种菊科向日葵属宿根性草本植物。秋季开花，长有黄色的小盘花，形如菊，生产上一般用块茎繁殖，其地下块茎富含淀粉、菊糖等果糖多聚物[1]。性喜稍清凉而干燥的气候，耐寒、耐旱，块茎在0～6 ℃时萌动，8～l0 ℃出苗，由于菊芋的地下块茎能在寒冷的北方土壤下越冬，翌年萌发新株，故常被误认为多年生作物。其幼苗能耐1～2 ℃的低温。在18～22 ℃，日照12小时的条件下，有利于块茎的形成。块茎能在25～30 ℃的冻土层内安全越冬。对土壤的适应性很强，在肥沃疏松的土壤中栽培能取得很高的产量[2]。