摘要
通过2年试验研究增施钾肥对马铃薯产量及相关性状的影响。试验表明,在当地习惯施肥基础上增施钾肥,提高了马铃薯产量、商品率和块茎淀粉含量,钾肥对马铃薯产量与品质的贡献作用显著;同时,增施钾肥提高了块茎膨大后期叶绿素含量、净同化率和根系活力,钾肥对马铃薯净同化率等生理指标的贡献作用显著。对产量、品质指标、生理指标进行相关分析表明,增施钾肥对产量、块茎商品率和净同化率等生理指标的贡献作用一致。
The result of the research on the potato production and related physiological traits, which was carried out for two years, showed that increasing of potassium fertilizer on the base of common applying fertilizer at local area can improve production of potato, commodity rate of tuber and content of starch. Moreover, root activity, chlorophyll content and net assimilation rate can be also increased. Related analysis of production, quality and physiological traits indicated that increasing of potassium fertilizer contributed equivalently to production and quality as well as net assimilation indices. However, different treatments have different production increasing and quality improving.
出处
《上海交通大学学报（农业科学版）》
2010年第4期379-381,384,共4页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
浙江省教育厅科技计划项目(20070566)
浙江省新苗人才项目(2008R40G2260043)
关键词
马铃薯
钾肥
产量
生理指标
potato
potassium fertilizer
production
physiological traits
