[1]齐鹤鹏,安霞,刘源,等.施钾量对甘薯产量及钾素吸收利用的影响[J].江苏农业学报,2016,(01):84-89.[doi:10.3969/j.issn.1000-4440.2016.01.013 ]
　QI He-peng,AN Xia,LIU Yuan,et al.Effects of potassium application rates on yield, potassium uptake and utilization in sweet potato (Ipomoea batatas L.) genotypes[J].,2016,(01):84-89.[doi:10.3969/j.issn.1000-4440.2016.01.013 ]
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施钾量对甘薯产量及钾素吸收利用的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2016年01期
页码:
84-89
栏目:
耕作栽培·资源环境
出版日期:
2016-01-08

文章信息/Info

Title:
Effects of potassium application rates on yield, potassium uptake and utilization in sweet potato (Ipomoea batatas L.) genotypes
作者:
齐鹤鹏12; 安霞23; 刘源12; 朱国鹏1; 汪吉东23; 张永春23
（1.海南大学，海南海口572008;2.农业部江苏耕地保育科学观测实验站,江苏南京210014；3.江苏省农业科学院农业资源与环境研究所,江苏南京210014）
Author(s):
QI He-peng12; AN Xia23; LIU Yuan12; ZHU Guo-peng1; WANG Ji-dong23; ZHANG Yong-chun23
（1.Hainan University，Haikou 572008，China；2.Scientific Observation and Experimental Station of Farmland Conversation and Cultivation in Jiangsu, Ministry of Agriculture, Nanjng 210014, China;3.Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China）
关键词:
甘薯; 施钾量; 吸收; 利用率
Keywords:
sweet potato; K application rate; absorption; K use efficiency
分类号:
S632.1; S143.3
DOI:
10.3969/j.issn.1000-4440.2016.01.013
文献标志码:
A
摘要:
为探明施钾量对不同主栽甘薯品种产量、产量构成及钾素吸收和利用的影响, 以3种甘薯品种为材料，田间设置不同施钾水平试验。结果显示，各甘薯品种产量均随施钾量上升而提高，增施钾肥对甘薯地上部分生物量的影响小于根系，施钾的增产作用主要表现在甘薯数量的增加，单薯质量则次之；甘薯茎、叶钾含量高于薯块，且增施钾显著提高甘薯茎叶和薯块的含钾量。甘薯品种间钾的吸收及利用对施钾的响应不同，相对高效的徐薯22钾素主要积累在根部，宁薯192及浙紫1号则相反。甘薯钾利用效率与植株钾浓度呈显著负相关，而与产量无显著相关性。表明增施钾肥可以提高甘薯产量，其增产作用主要表现在提高单株结薯数；甘薯含钾量对施钾的响应主要体现在根部，甘薯品种间钾利用效率主要受植株钾浓度的影响。
Abstract:
To investigate the effects of potassium (K) application rates on yields, K absorption and utilization in different sweet potato genotypes, field tests of K application rates were carried on three different genotypes of edible sweet potato, Ningshu 192, Zhezi 1 and Xushu 22. The results showed that K fertilization increased tuberous root dry matter of sweet potato by increasing the tuber number, and, to a less degree, the mean tuber weight. Above-ground parts got higher K concentration than those in tube, and K concentrations in tube and above-ground parts increased with the increase of K fertilization. The K uptake and utilization varied among genotypes, and Xushu 22, with high use efficiency, got dominant K accumulation in tube root, while Zhezi 1 and Ningshu 192 had opposite trends. The K use efficiency (KIUE) had a significant negative correlation with K concentration in the whole plants at maturity. No significant correlation was found between root dry matter yield and KIUE. It was concluded that increasing potash application could enhance the sweet potato productivity by improving tuberous root numbers per plant. Tuberous root of sweet potato gave higher response to K supply than above-ground part, and the K use efficiency were mainly affected by the K concentration in the tissues of sweet potato.

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备注/Memo

备注/Memo:
收稿日期：2015-03-26 基金项目：江苏省农业科技自主创新基金项目[CX(14)2005];国家公益性行业专项项目（201203013）;现代农业产业技术体系项目（CARS-11-B-15）；海南省农业科技服务体系建设专项（HNXH201530） 作者简介：齐鹤鹏（1984-），男，吉林长春人，硕士研究生，主要从事蔬菜的植物营养学研究。（Tel）025-84391171 通讯作者：朱国鹏，（E-mail）guopengzhu@163.com 收稿日期：2015-03-26 基金项目：江苏省农业科技自主创新基金项目[CX(14)2005];国家公益性行业专项项目（201203013）;现代农业产业技术体系项目（CARS-11-B-15）；海南省农业科技服务体系建设专项（HNXH201530） 作者简介：齐鹤鹏（1984-），男，吉林长春人，硕士研究生，主要从事蔬菜的植物营养学研究。（Tel）025-84391171 通讯作者：朱国鹏，（E-mail）guopengzhu@163.com 收稿日期：2015-03-26 基金项目：江苏省农业科技自主创新基金项目[CX(14)2005];国家公益性行业专项项目（201203013）;现代农业产业技术体系项目（CARS-11-B-15）；海南省农业科技服务体系建设专项（HNXH201530） 作者简介：齐鹤鹏（1984-），男，吉林长春人，硕士研究生，主要从事蔬菜的植物营养学研究。（Tel）025-84391171 通讯作者：朱国鹏，（E-mail）guopengzhu@163.com 收稿日期：2015-03-26 基金项目：江苏省农业科技自主创新基金项目[CX(14)2005];国家公益性行业专项项目（201203013）;现代农业产业技术体系项目（CARS-11-B-15）；海南省农业科技服务体系建设专项（HNXH201530） 作者简介：齐鹤鹏（1984-），男，吉林长春人，硕士研究生，主要从事蔬菜的植物营养学研究。（Tel）025-84391171 通讯作者：朱国鹏，（E-mail）guopengzhu@163.com 收稿日期：2015-03-26 基金项目：江苏省农业科技自主创新基金项目[CX(14)2005];国家公益性行业专项项目（201203013）;现代农业产业技术体系项目（CARS-11-B-15）；海南省农业科技服务体系建设专项（HNXH201530） 作者简介：齐鹤鹏（1984-），男，吉林长春人，硕士研究生，主要从事蔬菜的植物营养学研究。（Tel）025-84391171 通讯作者：朱国鹏，（E-mail）guopengzhu@163.com
更新日期/Last Update: 2017-05-08