河南农业科学2013，Vol.42Issue(8)：41-44,4.
模拟氮沉降对水稻植株养分含量和产量的影响
Effects of Simulated Nitrogen Deposition on Nutrient Content and Yield of Rice (Oryza sativa L.)
摘要
Abstract
To study the impact of nitrogen deposition on rice growth and yield,early rice "Yueyou 463"seedlings were transplanted in April,2009 under field conditions (hydromorphic paddy soil).Ammonium nitrate solution was sprayed on the seedlings every 10 days at five N doses [N0 (0 g/(m2 · a)),N1 (3 g/(m2 · a)),N2 (6 g/(m2 · a)),N3 (12 g/(m2 · a)) and N4(24 g/(m2 · a))]during growing season with three replicates for each treatments.Biomass,yield and nutrient concentration were monitored at harvest time.The results indicated that N addition increased N,P,K and Ca contents in leaves,roots and non-fully filled grains but decreased Mg concentration in shoots and roots.N concentration in leaves and roots was positively correlated with P,K and Ca but negatively correlated with Mg.The present simulated N deposition was found to increase the growth and yield of rice,but increase the percentage of non-fully filled grains and decrease 1000-grain weight.关键词
模拟氮沉降/水稻/养分含量/生物量/产量Key words
simulated nitrogen deposition/ rice/ nutrient content/ biomass/ yield分类
农业科技引用本文复制引用
廖迎春,涂洁,樊后保,刘文飞,李燕燕,吴建平..模拟氮沉降对水稻植株养分含量和产量的影响[J].河南农业科学,2013,42(8):41-44,4.基金项目
国家自然科学基金资助项目(30771714,30370259) （30771714,30370259）
江西省科技厅科技支撑计划项目(赣财教[2007]173号) （赣财教[2007]173号）
江西省教育厅青年科学基金项目(GJJ09614) （GJJ09614）
南昌工程学院青年基金项目(2010KJ002) （2010KJ002）
