This document lists 19 journal articles and conference papers related to evaluating the effects of nitrogen and zinc on crop yields. Specifically, several papers examine the interaction between nitrogen and zinc on maize yield, grain filling rate, and chlorophyll content. Other papers investigate the effects of nitrogen and salinity stress on traits of oat and wheat varieties. The list also includes studies analyzing the use of nano-zinc oxide, carbon nanotubes, and liquid medium on micropropagation indices and biomass of stevia plants.