GUO Wenyi,WEI Dan,JIN Liang,et al.Response of Soybean Growth Indexes, Soybean Nutrient Content and Greenhouse Gas Emission to Fertilization Modes in Typical Black Soil Area[J].Soybean Science,2017,36(02):274-280.[doi:10.11861/j.issn.1000-9841.2017.02.0274]
黑土区大豆植株长势和农田温室气体对不同施肥方式的响应
- Title:
- Response of Soybean Growth Indexes, Soybean Nutrient Content and Greenhouse Gas Emission to Fertilization Modes in Typical Black Soil Area
- Keywords:
- Fertilization modes; Black soil; Soybean growth index; Greenhouse gas
- 文献标志码:
- A
- 摘要:
- 在哈尔滨典型黑土地区,对不同施肥方式下大豆产量与根重、叶片叶绿素含量、植株NPK含量的相关关系及生长期内温室气体(CO2、N2O和CH4)排放量的变化进行研究。试验设测土施肥(对照处理)、测土减量施肥+C增效剂、缓释肥料、测土施肥+N分期调控4个处理。结果表明:缓释肥料产量效应最明显,增产7.2%,测土减量施肥+C增效剂低碳效应较明显,减少30%氮素同时增产1.8%。各施肥处理大豆百粒重顺序由高到低为:缓释肥料>测土施肥+N分期调控>测土施肥>测土减量+C增效剂。各个处理间的CO2通量平均值差异显著,N2O和CH4通量平均值差异不显著。与对照相比,测土减量施肥+C增效剂处理中,碳增效剂在减30%氮的背景下提升了叶绿素含量,促进了植株和根系生长,小幅度增产同时维持作物在生育期内的CO2呼吸效应,可作为低碳农业的推荐措施。
- Abstract:
- Experiment was carried out in typical black soil area of Harbin, and investigated the correlativity of soybean yields, root weight, SPAD value of soybean leaf and NPK contents in soybean plant under different fertilization modes, and the greenhouse gas (CO2、N2O and CH4) emission during growth period The four treatments contend recommendation fertilization, reducing soil testing fertilization+C synergistic agent, slow release fertilization, recommendation fertilization + N staging regulation, recommendation fertilization was the control Results showed that the yield was increased highest of 7.2% by low release fertilization, low carbon effect was obvious with 1.8% yield increased and 30% N addition reduced by reducing soil testing fertilization+C synergistic agent The 100 seed weight order of four treatments was as followed recommendation fertilization + N stage regulation>slow release fertilization>recommendation fertilization>reduced fertilization The average CO2 fluxes of four treatments showed significant difference but the average fluxes of N2O and CH4 showed no significant differences Compared with CK treatment, reducing soil testing fertilization+C increased the chlorophyll content, promoted the growth of the plants and root, maintained good respiratory CO2 effect during the crop growth period, with yield increased of small amplitude The research results can be used as evaluation of soybean production capacity under different fertilization management measures and the theory basis of the correlation of plant growth and the environment
参考文献/References:
[1]孟庆英,于忠和, 贾绘彬, 等不同施肥处理对大豆根际土壤微生物及土壤肥力影响[J]. 大豆科学, 2011, 35(3): 471-474(Meng Q Y, Yu Z H, Jia H B, et al Effects of different fertilization treatments on rhizosphere microorganisms and soil fertility of soybean[J]. Soybean Science, 2011, 35(3): 471-474)
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