东北冷凉地区秸秆还田方式对水稻光合、干物质积累及氮素吸收的影响

隋阳辉,高继平,刘彩虹,徐正进,王延波,赵海岩

Effects of Straw Incorporation Modes on Rice Photosynthesis, Dry Matter Accumulation and Nitrogen Uptake in Cool Region of Northeast China

Yanghui Sui,Jiping Gao,Caihong Liu,Zhengjin Xu,Yanbo Wang,Haiyan Zhao

表2 秸秆还田方式对地上部干物质量的影响（2014年）

氮水平 Nitrogen level 处理 Treatment 分蘖期 Tillering stage 拔节期 Jointing stage 齐穗期 Heading stage 灌浆期 Grain filling stage 成熟期 Ripening stage N CK 15.13±2.85aAB 37.92±5.02aA 52.34±7.75aA 69.89±14.28bAB 82.98±1.36bB S 17.28±1.33aA 31.15±3.05abAB 58.06±4.37aA 83.78±1.91aA 89.97±2.45aAB B 15.67±3.16aA 32.58±7.14abAB 54.67±1.09aA 78.23±2.67abA 92.58±4.44aA N0 CK 9.35±0.68bC 25.65±2.80bcB 32.08±0.60bB 42.99±4.41cC 62.96±2.44cC S 6.69±1.92bC 23.32±2.66cB 33.83±3.86bB 50.86±6.33cBC 60.83±2.14cC B 10.05±0.79bBC 27.33±3.09bcB 38.12±4.64bB 55.93±4.28cBC 65.02±2.19cC