Liu C-A, Zhang S, Hua S, Rao X. Effects of nitrogen and phosphorus fertilizer on crop yields in a field pea-spring wheat-potato rotation system with calcareous soil in semi-arid environments. Span. j. agric. res. [Internet]. 2016Jun.1 [cited 2024Apr.29];14(2):e1101. Available from: https://sjar.revistas.csic.es/index.php/sjar/article/view/7347