秸秆还田替代化学钾肥对棉麦轮作中棉仁油分累积的效应
宋光雷, 睢宁, 余超然, 张凡, 孟亚利, 陈兵林, 赵文青, 王友华*

Effects of Straw-Returning Instead of Chemical Potassium Application on Oil Accumulation in cotton seed Embryo in Wheat-Cotton Rotation System
SONG Guang-Lei, SUI Ning, YU Chao-Ran, ZHANG Fan, MENG Ya-Li, CHEN Bing-Lin, ZHAO Wen-Qing, WANG You-Hua*
田间试验设计 基础土壤指标测定于移栽期, 取1/2株距20 cm土层土壤, 测定速效氮、有效磷及速效钾含量。秸秆与基肥同期施入。W0: 小麦秸秆不还田; W1: 4500 kg hm-2小麦秸秆还田量; W2: 9000 kg hm-2小麦秸秆还田量; C0: 棉花秸秆不还田; C1: 3750 kg hm-2棉花秸秆还田量; C2: 7500 kg hm-2棉花秸秆还田量; K1: 150 kg K2O hm-2施钾量; K2: 300 kg K2O hm-2施钾量。