Micronutrients uptake by wheat as affected by different N-sources and irrigation regimes in a sandy soil

摘要：

The aim of this work was to study micronutrients uptake by wheat under different water supply in sandy soil. Three N-fertilizers were used namely ammonium sulfate (AS), urea formaldehyde (UF) and chicken manure (Ch. M). Treatments included three rates of nitrogen: 75, 100 and 125kg N/acre. Irrigation of the experiment followed at 30％ (M<,1>), 50％ (M<,2>) or 70％ (M<,3>) available soil moisture depletion using sprinkler irrigation system. At maturity, yield and yield attributes were assayed. M<,2> irrigation regime gave the highest micronutrient-uptake under all N-rates and sources. Urea formaldehyde and chicken manure treatments recorded higher Fe, Mn and Zn uptake than ammonium sulfate treatment. M<,1> irrigation treatment gave higher Fe and Mn uptake compared to M<,2> or M<,3> irrigation treatments.

关键词： irrigation regimes micronutrients N-sources wheat

作者: Abdel Khalek M. Selim

作者单位: Dept. of Plant Nutrition, National Research Center, Cairo, Egypt

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 287-288

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）