Combining fertilizer and organic inputs to synchronize N supply in alternative cropping systems in California

By A. Kramer, T. A. Doane, William R. Horwath, C. Kessel. 2002

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Fertilizer Treatment Effects on Performance of Cassava under Two Planting Patterns in a Cassava-based Cropping System in South West Nigeria (2007, unknown): “[18]”
Diverse concepts of breeding for nitrogen use efficiency. A review (2017, background): “50% for maize up to 75% for wheat) of the total above-ground N is in the grains (Linquist et al. 1992; Kramer et al. 2002).”
Effects of Farmyard Manure and Inorganic Fertilizers on Sorghum Growth, Yield, and Nitrogen Use in a Semi-Arid Area of Ethiopia (2006, background): “It is commonly believed that the combination of organic and inorganic fertilizer will increase synchrony and reduce losses by converting inorganic nitrogen (N) into organic forms (Kramer et al., 2002) and is important not only for enhancing the efficiency of the fertilizers, but also in reducing env”
Does the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysis (2011, unknown): “2000; Bremer and van Kessel 1992; Ladd and Amato 1986), greater crop yields have been observed following the combined application of ORs with N fertilizers (Kimani et al. 2007; Kramer et al. 2002; Mtambanengwe et al. 2006).”