氮肥与促腐菌肥配施对寒地水稻秸秆还田腐解效果及产量的影响

曹正男, 赵振东, 胡博, 于涵, 宁晓海, 赵泽强, 曹立勇

Effects of Nitrogen Fertilizer and Promoting Rot Bacteria Fertilizer on Decomposition Effect of Returning Rice Straw to Field and Yield in Cold Regions

Cao Zhengnan, Zhao Zhendong, Hu Bo, Yu Han, Ning Xiaohai, Zhao Zeqiang, Cao Liyong

表2 水稻主要生育期各器官干物质积累量及其比例

Table 2 Dry matter accumulation and its ratio in each organ of rice at main growth stages

生育时期 Growth stage 处理 Treatment 茎鞘Stem-sheath 叶片Leaf 穗Panicle 总干物质 积累量 Total dry matter (kg/hm2) 干物质积累量 Dry matter accumulation (kg/hm2) 比例 Ratio (%) 干物质积累量 Dry matter accumulation (kg/hm2) 比例 Ratio (%) 干物质积累量 Dry matter accumulation (kg/hm2) 比例 Ratio (%) 分蘖期 Tillering T1 2537.81a 54.34ab 2131.30a 45.66bc － － 4669.10a T2 2420.38ab 53.59bc 2095.11a 46.41ab － － 4515.49a T3 2332.50b 53.70bc 2011.12b 46.30ab － － 4343.62b T4 2087.75c 52.79c 1866.91c 47.21a － － 3954.66c CK 2011.01c 55.12a 1637.34d 44.88c － － 3648.35d 齐穗期 Heading T1 6596.52a 55.27a 3296.72a 27.62b 2042.04ab 17.11ab 11 935.28a T2 6524.28a 54.48a 3295.60a 27.52b 2155.72a 18.00a 11 975.60a T3 6398.28a 55.96a 3182.20a 27.86b 1851.64bc 16.18bc 11 432.12a T4 5470.08b 55.25a 2751.06b 27.80b 1678.32c 16.95ab 9899.40b CK 3709.84c 55.37a 1963.36c 29.31a 1027.01d 15.32c 6700.21c 成熟期 Maturity T1 5247.94ab 27.32a 2707.31a 14.09c 11 255.23ab 58.60a 19 210.47b T2 5307.75a 27.03a 2758.42a 14.05c 11 568.72a 58.93a 19 634.88a T3 4964.57b 26.79a 2646.96ab 14.29c 10 918.81b 58.92a 18 530.33b T4 4446.48c 28.02a 2445.43b 15.39b 8989.25c 56.59b 15 881.15c CK 3149.39d 28.37a 1848.45c 16.64a 6101.51d 54.99c 11 099.35d