绿肥还田和减量施氮对甘肃河西灌区土壤质量及燕麦产量和品质的影响

周琦, 张靖, 王振龙, 施志国, 邓超超, 常浩, 柳洋, 周彦芳

Effects of Green Manure Incorporation and Nitrogen Fertilizer Reduction on Soil Quality, Oat Yield and Quality in Hexi Irrigation District of Gansu Province

Zhou Qi, Zhang Jing, Wang Zhenlong, Shi Zhiguo, Deng Chaochao, Chang Hao, Liu Yang, Zhou Yanfang

表3 不同处理对燕麦光合特性的影响

Table 3 Effects of different treatments on the photosynthetic characteristics of oat

处理 Treatment Pn [μmol/(m2?s)] Gs [mmol/(m2?s)] Ci [μmol/mol] Tr [mmol/(m2?s)] CK 9.76±0.06a 0.57±0.02b 404.69±4.33c 3.04±0.03a GFN90 10.06±0.12a 0.65±0.02a 336.48±3.18e 3.05±0.05a GFN80 9.74±0.10a 0.53±0.02bc 370.28±3.12d 2.77±0.05b GFN70 8.80±0.17b 0.49±0.02c 398.05±5.55c 2.45±0.06c GFN60 8.25±0.07c 0.47±0.03c 426.46±2.99b 2.22±0.07d GFN50 6.91±0.12d 0.38±0.02d 462.17±3.79a 1.88±0.04e