| 氮磷钾配施对马铃薯净光合速率的影响研究 |
| |
| 引用本文： | 黄科,刘明月,何长征,宋勇,熊兴耀. 氮磷钾配施对马铃薯净光合速率的影响研究[J]. 湖南农业科学, 2011, 0(15) |
| |
| 作者姓名： | 黄科 刘明月 何长征 宋勇 熊兴耀 |
| |
| 作者单位： | 作物种质创新与资源利用国家重点实验室培育基地,湖南长沙410128;湖南农业大学园艺园林学院,湖南长沙41 0128;湖南省马铃薯工程技术研究中心,湖南长沙410128 |
| |
| 基金项目： | 农业部马铃薯产业技术体系(CARS-10-P19); 湖南省自然科学基金项目(11JJ3035) |
| |
| 摘 要： | 针对南方冬闲田马铃薯生产中重氮磷肥,轻钾肥的现状,采用3414设计方案,研究了冬闲田马铃薯在不同肥料水平下光合特性,结果表明:氮素在0～18 kg/667m2范围内与马铃薯植株净光合速率呈直线正相关;P2O5与马铃薯植株净光合速率呈曲线相关;K2O在0～25 kg/667m2范围内与马铃薯植株净光合速率呈负相关,而钾水平高于25 kg/667m2后,净光合速率表现为趋于稳定在一个较低的水平;通过DPS分析,得出在该冬闲田肥力水平下马铃薯的最佳N、P、K施肥组合为每667 m2纯N 18.00 kg,P2O5 5.77 kg,K2O 39 kg,可获得1 833.8 kg/667m2的理论产量。
|
| 关 键 词： | 冬闲田 马铃薯 光合速率 肥料 配施 |
Impact of Combined Application of N,P and K on Net Photosynthetic Rate of Potato |
| |
| HUANG Ke,LIU Ming-yue,HE Chang-zhen,SONG Yong,XIONG Xing-yao. Impact of Combined Application of N,P and K on Net Photosynthetic Rate of Potato[J]. Hunan Agricultural Sciences, 2011, 0(15) |
| |
| Authors: | HUANG Ke LIU Ming-yue HE Chang-zhen SONG Yong XIONG Xing-yao |
| |
| Affiliation: | HUANG Ke1,2,3,LIU Ming-yue1,HE Chang-zhen1,SONG Yong1,XIONG Xing-yao1,3(1.Hunan Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop,Changsha 410128,PRC,2.College of Horticulture and Landscape,HNAU,3.Hunan Provincial Engineering Research Center for Potato,PRC) |
| |
| Abstract: | According to the status quo of fertilizer application that applying more N and P but less K during potato production in southern winter fallow fields,the photosynthetic characteristics of potato at different fertilizer levels in winter fallow field was analyzed by using 3414 design method.The results showed that the nitrogen showed a linear positive correlation with the net photosynthetic rate of potato within 0~270 kg/hm2;P2O5 showed a curvilinear correlation with net photosynthetic rate of potato;K2O show... |
| |
| Keywords: | winter fallow field potato photosynthetic rate fertilizer combined application |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
