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    吕晴晴, 劳丞一, 徐慧芳, 等. 稻田不同水旱复种模式对土壤团聚体及碳氮的影响[J]. 华南农业大学学报, 2024, 45(6): 1-7. DOI: 10.7671/j.issn.1001-411X.202407015
    引用本文: 吕晴晴, 劳丞一, 徐慧芳, 等. 稻田不同水旱复种模式对土壤团聚体及碳氮的影响[J]. 华南农业大学学报, 2024, 45(6): 1-7. DOI: 10.7671/j.issn.1001-411X.202407015
    shu
    LÜ Qingqing, LAO Chengyi, XU Huifang, et al. Effects of different paddy-upland multiple cropping patterns on soil aggregates, carbon and nitrogen in paddy fields[J]. Journal of South China Agricultural University, 2024, 45(6): 1-7. DOI: 10.7671/j.issn.1001-411X.202407015
    Citation: LÜ Qingqing, LAO Chengyi, XU Huifang, et al. Effects of different paddy-upland multiple cropping patterns on soil aggregates, carbon and nitrogen in paddy fields[J]. Journal of South China Agricultural University, 2024, 45(6): 1-7. DOI: 10.7671/j.issn.1001-411X.202407015
    shu

    稻田不同水旱复种模式对土壤团聚体及碳氮的影响

    Effects of different paddy-upland multiple cropping patterns on soil aggregates, carbon and nitrogen in paddy fields

      摘要
    • 摘要:
      目的 探寻更适合南方稻田可持续发展的水旱复种模式。
      方法 在江西农业大学科技园开展紫云英−早稻−晚稻(CK)、紫云英−早稻−晚玉米||晚大豆(CRI)、油菜−早稻−晚玉米||晚大豆(RRI)、油菜−早稻−晚稻(RRR)水旱复种模式的田间对比试验。
      结果 土壤有机碳、土壤全氮含量均为CK>RRR>CRI>RRI。种植紫云英模式的R0.25(粒径>0.25 mm的团聚体含量)比种植油菜模式的高，说明土壤结构的稳定性更强。CRI的早稻产量高于其他处理。
      结论 在南方地区推行紫云英−早稻−晚玉米||晚大豆种植模式CRI，有利于农业的可持续发展。

       

      Abstract:
      Objective To investigate a paddy-upland multiple cropping model that is more conducive to the sustainable development of paddy fields in the southern region.
      Method A comparative field trial was conducted at the Science and Technology Park of Jiangxi Agricultural University to compare the paddy-upland multiple cropping models, including milk vetch-early rice-late rice (CK), milk vetch-early rice-late corn||late soybean (CRI), rape-early rice-late corn||late soybean (RRI), and rape-early rice-late rice (RRR).
      Result The levels of soil organic carbon and total nitrogen contents were both in the order of CK>RRR>CRI>RRI. In addition, The R0.25 (aggregate content with diameter > 0.25 mm) in planting milk vetch modes were higher than those in planting rape modes, suggesting that the soil structure of planting milk vetch modes was more stable. Furthermore, the early rice yield in CRI was the highest among four treatments.
      Conclusion Consequently, adopting CRI mode of milk vetch-early rice-late corn||late soybean in the southern region is beneficial for the sustainable development of agriculture.

       

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