小麦秸秆还田和施钾对棉花产量与养分吸收的效应
张凡1, 睢宁1, 余超然1, 刘瑞显2, 杨长琴2, 宋光雷1, 孟亚利1,#cod#x0002A;, 周治国1

Effects of Wheat Straw Returning and Potassium Fertilizer Application on Yield and Nutrients Uptake of Cotton
ZHANG Fan1, SUI Ning1, YU Chao-Ran1, LIU Rui-Xian2, YANG Chang-Qin2, SONG Guang-Lei1, MENG Ya-Li1,#cod#x0002A;, ZHOU Zhi-Guo1
图2 棉株氮累积A、生殖器官氮累积B动态和经济系数C变化2013
Fig. 2 Dynamics of N accumulation in cotton plant A, and reproductive organs B, and economic coefficient of N C in 2013 缩写同 表2 。Abbreviations are the same as those given in Table 2 .