G. L. Malzer

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rally affected, it would suggest that the benefits associated with a nitrification inhibitor may also be spatially The economically optimum N rate (EONR) required for corn (Zea and temporally influenced. mays L.) may vary spatially due to variation in soil characteristics and temporally due to the interactions of environmental factors. The The potential(More)
Both tillage and nitrification inhibitors such as dicyandiamide (DCD) have the potential to influence N availability and thus plant N uptake. A field experiment was conducted to investigate the impact of DCD and tillage (rototillage and no-tillage) on N immobilization and the subsequent impact of residual and fertilizer N on N availability to maize (Zea(More)
Nitrapyrin [2-chloro-6-(trichloromethyl)pyridine] has been shown to delay nitrification and may increase nitrogen (N) utilization efficiency of crops under N loss conditions. Current application recommendations suggest immediate incorporation. With fertilizer N sources such as urea and urea-ammonium nitrate (UAN) solution, immediate incorporation may not be(More)
Considerable effort has been spent in developing chemical indices to predict N mineralization. However, in spite of numerous studies, the relationship between the index value and plant N uptake has not been as apparent as hoped, and therefore, additional work is required to evaluate the ability of promising new indices to predict the extraction of(More)
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