Optimized irrigation level and deep vertical rotary tillage depth enhanced seed cotton yield, water-nitrogen productivity and economic benefit by reducing soil salinity: evidence from southern Xinjiang of China. - Bai, Zhentao; Li, Ling; Li, Zhijie; Li, Pengfei; Wang, Tangang; Fan, Junliang; Gong, Ping; Liu, Hongguang (Irrigation Science, 2025)