Agronomy Journal · 1961 · 65 citations · 0 references
AgricultureAgronomyCrop SciencesCrop EcologyCrop ProductionCropping SystemsCrop CompetitionCrop GrowthCrop-environment InteractionsNitrogen ManagementNitrogen NutritionNutrient CompetitionAboveground Growth SuppressionCompetition For Soil NutrientsCrop-weed Nutrient CompetitionNitrogen Effects On YieldNitrogen Fertilization EffectsReduced YieldSoil Nitrogen DynamicsWeed Competition Dynamics
Synopsis Corn yield reductions resulting from mature foxtail infestations averaged 20, 14, and 10 bushels per acre, respectively, with applications of 0, 70, and 140 pounds of elemental nitrogen per acre. Growth and yield of foxtail were depressed with higher corn plant populations. The roles of soil nitrogen, soil moisture, and corn plant populations are discussed. Possible effects of uncontrolled environmental and biological factors are recognized.