适应秸秆还田的多功能复合菌肥对小麦产量及土壤肥力的影响

发布时间：2018-05-07 06:58

本文选题：多功能复合菌肥 + 土壤肥力　；参考：《江苏农业科学》2017年18期

【摘要】：为明确多功能复合菌肥在小麦生产中的应用前景,2014—2015年通过4地田间定点试验研究了其对玉米秸秆的腐解效果、土壤肥力、小麦生长及产量和肥料偏生产力的影响。结果表明,4地多功能复合菌肥处理的秸秆累积腐解率为58.28%~69.18%,明显高于对照菌肥生物磷钾肥处理,较空白对照提高31.22%~51.77%。土壤有机质含量较空白对照提高8.3%~10.2%,碱解氮、速效磷和速效钾含量分别为64.9~69.8、20.9~29.7、109.4~141.3 mg/kg,较空白对照分别增加25.3%~36.3%、10.5%~11.8%、17.4%~20.1%。多功能复合菌肥使用后次生根数明显增加,4地小麦平均产量为7 470 kg/hm2,较对照菌肥有所提高,较空白对照平均提高14.4%。氮肥、钾肥和磷肥偏生产力分别为28.7~29.8、69.7~72.4、81.3~84.5,较空白对照分别平均增加14.3%、14.4%、14.4%。
[Abstract]:In order to clarify the application prospect of multifunctional compound bacterial fertilizer in wheat production in 2014-2015, the effects of multi-functional compound bacterial fertilizer on the decomposition of maize straw, soil fertility, wheat growth, yield and fertilizer productivity were studied by field experiments in four fields in 2014-2015. The results showed that the cumulative decomposition rate of straw was 58.28% and 69.18%, which was significantly higher than that of the control group and 31.2222% (51.7777) higher than that of the control. The content of organic matter in soil increased by 8.3mg / kg, and the content of alkali-hydrolyzed nitrogen, available phosphorus and available potassium was 29.7109.4 / 141.3 mg 路kg ~ (-1), respectively, which was increased by 25.3C ~ (36.3N) 10.5 ~ (10.5) ~ 11.8C and 17.420.1mg 路kg ~ (-1) as compared with the blank control, and the contents of available nitrogen, available phosphorus and available potassium were 64.9 ~ 69.8ng / kg and 17.420.1mg / kg, respectively. The average yield of wheat was 7 470 kg 路hm ~ (2), which was higher than that of the control and 14. 4% higher than that of the blank control. The partial productivity of nitrogen fertilizer, potassium fertilizer and phosphate fertilizer were 28.70.29. 80.72.4ng. 81.3ng. 84.5. the average increase of nitrogen fertilizer, potash fertilizer and phosphate fertilizer was 14.3and 14.4cm, compared with the blank control, respectively.
【作者单位】：河北农业大学植物保护学院;
【基金】：国家科技支撑计划(编号:2011BAD16B08;2012BAD04B06;2013BAD07B05) 河北省科技计划(编号:15226501D) 河北省现代农业产业技术体系小麦创新团队建设项目(编号:HBCT2013010208)
【分类号】：S158;S512.1

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