干旱区研究
Threshold Responses of Leaf Photosynthetic Physiological Parameters of Spring Maize to Soil Moisture and Its Productivity Classification
REN Li-wen, WANG Xing-tao, ZHAO Hong, WANG Run-yuan
Arid Zone Research . 2019, (4): 901 -908 .  DOI: 10.13866/j.azr.2019.04.14