干旱地区农业研究2013，Vol.31Issue(3)：106-111,6.
氮磷钾及有机肥对马铃薯生长发育和干物质积累的影响
Effects of N-P-K and organic fertilizers on growth and dry matter accumulation of potato
摘要
Abstract
Randomized field experiments were conducted in this study to investigate effects of different fertilizer treatments on growth indexes,dry matter accumulation and living weight of potatoes.The result showed that N1 PKM treatment gained the highest chlorophyll contents,in which contents of chlorophyll a,b and total chlorophyll amount increased by 15.12％,18.18％ and 36.37％ than CK,respectively.The application of phosphorus fertilizer promoted increase of leaf area.N1PKM,N1P,N1PK,P treatments increased leaf area by 27.78％,24.57％,20.26％ and 20.16％ than CK,respectively.Application of phosphorus fertilizers obtained the best results on promoting root growth of potatoes,but no obvious effect observed on root growth by using potassium and manure.Nitrogen and phosphorus are the most important nutrient elements in potatoes.Appropriate ratio of nitrogen,phosphorus,potassium and organic fertilizer in fertilization treatments could promote the growth of both above ground and underground of potatoes.The results of total dry matter accumulation of potatoes in different fertilization treatments showed that N1 PKM ＞ N1 PK ＞ N1 K ＞ N1 P.Living weight of potatoes in N1PKM treatment was increased by 117.1％ than CK.In conclusion,N1PKM could be used as fertilization formula of potatoes in drought land.关键词
施肥配比/马铃薯/生长发育/干物质/生物量Key words
potato(Solanum tuberosum L.)/ growth/ dry matter/ living weight分类
农业科技引用本文复制引用
王国兴,徐福利,王渭玲,于丹,王伟东..氮磷钾及有机肥对马铃薯生长发育和干物质积累的影响[J].干旱地区农业研究,2013,31(3):106-111,6.基金项目
"十二五"农村领域国家科技计划课题(2011AA100503) （2011AA100503）
