水氮减量对地膜玉米免耕轮作小麦主要光合生理参数的影响

徐龙龙, 殷文, 胡发龙, 范虹, 樊志龙, 赵财, 于爱忠, 柴强

Effect of water and nitrogen reduction on main photosynthetic physiological parameters of film-mulched maize no-tillage rotation wheat

XU Long-Long, YIN Wen, HU Fa-Long, FAN Hong, FAN Zhi-Long, ZHAO Cai, YU Ai-Zhong, CHAI Qiang

图1 地膜玉米免耕轮作小麦示意图 试验采用全膜覆盖, 地膜宽150 cm, 玉米种植4行(行距40 cm), 玉米收获后, 保留地膜完整度70%以上, 第2年采用穴播的方式种植春小麦, 密度为465万株 hm-2。

Fig. 1 Schematic diagram of mulch maize no-till rotation wheat In the experiment, the whole film was covered, the mulch was 150 cm wide, and 4 rows (row spacing 40 cm) of maize were planted. After the corn was harvested, the mulch integrity was retained above 70%. In the second year, spring wheat was planted by hill-planting method, with a density of 4.65 million plants hm-2.