Chen, Y., Xiao, C., Wu, D., Xia, T., Chen, Q., Chen, F., ... & Mi, G. (2015). Effects of nitrogen application rate on grain yield and grain nitrogen concentration in two maize hybrids with contrasting nitrogen remobilization efficiency. European Journal of Agronomy, 62, 79-89.
Hooper, P., Zhou, Y., Coventry, D. R., & McDonald, G. K. (2015). Use of nitrogen fertilizer in a targeted way to improve grain yield, quality, and nitrogen use efficiency. Agronomy Journal, 107(3), 903-915.
Li, P., Lu, J., Hou, W., Pan, Y., Wang, Y., Khan, M. R., ... & Li, X. (2017). Reducing nitrogen losses through ammonia volatilization and surface runoff to improve apparent nitrogen recovery of double cropping of late rice using controlled release urea. Environmental Science and Pollution Research, 24(12), 11722-11733.
Shen, Y., Sui, P., Huang, J., Wang, D., Whalen, J. K., & Chen, Y. (2018). Global warming potential from maize and maize-soybean as affected by nitrogen fertilizer and cropping practices in the North China Plain. Field crops research, 225, 117-127.
Trenkel, M. E. (2010). Slow-and controlled-release and stabilized fertilizers: an option for enhancing nutrient use efficiency in agriculture. IFA, International fertilizer industry association.
Whitehead, D. C. (1995). Grassland nitrogen. CAB international.
Zhang, W., Cao, G., Li, X., Zhang, H., Wang, C., Liu, Q., ... & Mi, G. (2016). Closing yield gaps in China by empowering smallholder farmers. Nature, 537(7622), 671.