15N isotope tracing 第1页

Effects of Nitrogen Application on Yield Formation and the Nitrogen Absorption and Utilization of Super Rice Based on 15N-tracing ABSORPTION AND UTILIZATION OF FERTILIZER-N AND SOIL-N WITH MIXED APPLICATION OF STRAW AND UREA BY RICE Yields, Market Values and N Use Efficiency in Fluecured Tobacco Influenced by Time of Basal N Fertilization