Legacy effects of long-term nitrogen fertilizer application on the fate of nitrogen fertilizer inputs in continuous maize
Agriculture, Ecosystems & Environment(2018)
摘要
Mass per area and percentage of applied fertilizer N that was recovered in maize aboveground biomass, the soil profile (0–120 cm), and unrecovered at harvest in 2015. Each location received the empirically-determined agronomic optimum N rate in 2015. Fertilizer N recovery in each pool was averaged across historical N rate treatments. Error bars depict ± one SE.
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关键词
Nitrogen recovery efficiency,Nitrogen use efficiency,Soil organic matter,Nitrogen budget
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