中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 施氮对鲜食型甘薯干物质及养分积累与分配特性的影响 华北农学报 2015,30 (4) 206-212
Position: Home > Articles > Effects of Nitrogen Application on Characteristics of Dry Matter and Nutrient Accumulation and Distribution of Fresh-eating Sweet Potato Acta Agriculturae Boreali-Sinica 2015,30 (4) 206-212

施氮对鲜食型甘薯干物质及养分积累与分配特性的影响

作  者：
高璐阳;房增国
单  位：
金正大生态工程集团股份有限公司;青岛农业大学资源与环境学院
关键词：
氮;鲜食型甘薯;干物质;养分;积累与分配
摘  要：
为了明确鲜食型甘薯干物质及养分积累分配规律与施氮之间的关系,以鲜食型甘薯(YS25和LS9)为试材,通过盆栽试验研究了不同施氮量对鲜食型甘薯干物质及氮、磷、钾养分积累与分配特性的影响。结果表明,在同一生育期内随着施氮水平的提高,两鲜食型甘薯品种藤蔓干物质及N、P2O5、K2O的积累量均随之增加,而薯块干物质及N、P2O5、K2O的积累量却表现出先增加后降低的趋势,且过量施氮会降低其在薯块的分配率。随施氮量的增加,两鲜食型品种甘薯形成100 kg薯干需吸收的养分量也逐渐增加,且K2O>N>P2O5。总体来说,LS9的N、P2O5、K2O生产效率及干物质生产效率较高,YS25的养分生产效率及干物质生产效率较低,说明LS9为养分生理利用高效率品种,YS25为养分生理利用低效率品种。两鲜食型甘薯品种的养分生产效率和干物质生产效率对施氮的反应基本一致,即施氮显著降低其养分生产效率和干物质生产效率。
译  名：
Effects of Nitrogen Application on Characteristics of Dry Matter and Nutrient Accumulation and Distribution of Fresh-eating Sweet Potato
作  者：
GAO Lu-yang;FANG Zeng-guo;College of Resources and Environment,Qingdao Agricultural University;Kingenta Ecological Engineering Group Co.,Ltd.;
关键词：
Nitrogen;;Fresh-eating sweet potato;;Dry matter;;Nutrient;;Accumulation and distribution
摘  要：
To clarify of the relationship of nitrogen application with dry matter and nutrient accumulation and distribution of fresh-eating sweet potato,the effects of different nitrogen levels on characteristics of dry matter and N,P2O5 and K2O accumulation and distribution of fresh-eating sweet potato have been studied in the pot experiment. The cultivars of fresh-eating sweet potato( LS9 and YS25) were selected as experimental material. The results showed that the accumulation of dry matter and N,P2O5,K2 O of YS25 and LS9 shoot were increased with the increase of nitrogen fertilizer application in the same developing stage,while those of YS25 and LS9 root-tuber were increased at first,and then decreased,and their distribution rates of root-tuber were decreased with nitrogen supply.The amounts of nutrients which needed for the formation of 100 kg dried sweet potato of LS9 and YS25 were increased gradually with the increase of amount of N applied,and that was K2 O > N > P2O5. In generally,the varieties of LS9 had higher production efficiency of N,P2O5,K2 O and dry matter,while YS25 had lower production efficiency of nutrients and dry matter. It showed that LS9 and YS25 had higher and lower physiological use efficiency of the nutrients separately. Responses of production efficiency of nutrients and dry matter of fresh-eating sweet potato( YS25 and LS9) to nitrogen application were almost consistent,namely production efficiency of nutrients and production efficiency of dry matter of N,P2O5 and K2O of sweet potato were decreased by nitrogen application.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46