Masaka, J., Chandiposha, M., Makaure, B. T., & Mazina, B. (2021). Effects of nitrogen fertilizer application rate and time to first harvest on leaf area index; leaf nitrate content and yield of irrigated leaf rape (Brassica napus L. var. Giant). International Journal of Horticultural Science, 27, 64-75. https://doi.org/10.31421/ijhs/27/2021/9441