| 7 | Nitrous Oxide Emissions from Upland Farmland as Affected by Summer Legume Crop Cultivation显示文摘A field study was conducted to investigate the effects of leguminous crop cultivation on nitrousoxide (N2O) emissions from upland agricultural soils. Results demonstrated that N2O emission sequences were tively. While in terms of seasonal emission, the sequence was that soybean > peanut crop > upland rice, being 0.77, 0.70 and 0.55 kg/ha respectively. Results also demonstrated that legume crop treatment emitted much more N2O than non-legume upland rice treatment and that N fertilized treatments emitted more than unand N fertilizer, therefore, were one of the important sources of N2O emissions from agricultural fields. | XIONG Zheng-qin, XING Guang-xi, H Tsuruta, SHI Shu-Han, SHEN Guang-yu, DU Li-juan and QIAN Wei(Laboratory of Material Cycling in Pedosphere , Institute of Soil Science , Chinese Academy of Sciences , Nanjing 210008 , P. R . China National Institute for Agro-Environmental Sciences , Tsukuba 305 , Japan ) | 2002 | Agricultural Sciences in China2002，1，9： | 1 |
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