Field studies were established on the alluvial floodplain soils in Louisiana, from 2013 to
2015, to evaluate the effect of silicate slag applications on productivity of wheat (Triticum
aestivum), under sufficient and high nitrogen (N) application rates. Treatments were
arranged in a randomized complete block design, with four replications consisting of twelve
treatments: a factorial combination of two N (101 and 145 kg N ha− 1) and five silicate slag
rates (0, 1, 2, 4.5, and 9 Mg ha− 1), and two control plots (with and without lime). Nitrogen …