欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (31): 174-178.doi: 10.11924/j.issn.1000-6850.2013-0770

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

生物黑炭对设施土壤理化性质及蔬菜产量的影响

潘洁 肖辉 程文娟 王立艳 陆文龙   

  • 收稿日期:2013-03-20 修回日期:2013-04-10 出版日期:2013-11-05 发布日期:2013-11-05
  • 基金资助:
    天津市农业科技成果转化与推广项目;国家科技支撑计划

Effect of biochar on vegetable yields and the soil physical and chemical properties in greenhouse

  • Received:2013-03-20 Revised:2013-04-10 Online:2013-11-05 Published:2013-11-05

PDF (PC)

1085

摘要： 选取典型日光温室，通过一年两季田间小区试验，研究生物黑炭不同用量对设施土壤理化性质及蔬菜产量的影响，以期为生物黑炭在设施土壤中合理运用提供参考。结果表明，设施土壤施用生物黑炭与习惯处理相比，能显著降低土壤容重2.65%~15.73%，提高土壤CEC 1.03%~5.46%，提高土壤有机碳含量7.28%~24.95%，增加土壤速效钾含量19.06%~168.5%，施用量越大效果越明显；施用生物黑炭也增加了土壤水解氮和速效磷含量，但与习惯处理相比差异不显著。生物黑炭本身pH较高，但经过蔬菜整个生长季后，对土壤pH影响不大；生物黑炭矿物质含量较高，增加土壤养分的同时也提高了土壤全盐含量。低量生物黑炭对蔬菜产量影响不大或有提高作用，但高量生物黑炭会造成蔬菜减产，因此，设施土壤生物黑炭施用量不宜过高。

关键词: 有机碳, 有机碳

Abstract: A field plot experiment was conducted to study the effect of biochar on vegetable yields and the soil physical and chemical properties in greenhouse.The results showed that biochar significantly reduced soil bulk density from 2.65% to 15.73%,improved soil CEC from 1.03% to 5.46%,increased soil organic carbon from 7.28% to 24.95%,and increased soil avaiable potassium from 19.07 %to 168.5%,compared with general treatment.The contents of soil hydrolysis nitrogen and available phosphorus were also increased,but the differences were not significant.Biochar had little effect on soil pH, but significantly increased soil total salt content.The low amount of biochar had little effect on vegetable yields or improved the yields, but with increasing usage, the yields tent to downward. Therefore, the application amount of biochar should not be too high in greenhouse soil.

中图分类号: