Biochar Cucumber Continuous cropping Nutrition medium Physic

  本文关键词：添加生物炭对连作营养基质理化性质及黄瓜生长的影响，由笔耕文化传播整理发布。

添加生物炭对连作营养基质理化性质及黄瓜生长的影响

Physicochemical Properties of Nutrition Medium and Cucumber Growth under Continuous Cropping

[1] [2] [3] [4] [5]

WU Chun-cheng, LI Tian-lai, CAO Xia, ZHANG Yong-yong, YANG Li-juan （ 1 Key Laboratory of Protected Horticulture of Liaoning Province and Ministry of Education, Shenyang/ Colle

[1]沈阳农业大学园艺学院/辽宁省省部共建设施园艺重点实验室,辽宁沈阳110866; [2]河北科技师范学院园艺科技学院,河北昌黎066600; [3]沈阳农业大学土地与环境学院,辽宁沈阳110866

文章摘要：以连作营养基质（10茬）添加质量比为3%和5%生物炭为处理,以不添加生物炭为对照,采用日光温室黄瓜桶栽试验,研究连作营养基质添加生物炭对其理化性质及黄瓜生长的影响。结果表明,添加生物炭的处理,显著提高营养基质pH、有机质和速效钾含量,促进黄瓜叶片光合作用,提高产量,降低果实硝酸盐含量,其中以添加5%生物炭处理效果最为明显。相关分析表明,黄瓜产量与速效钾含量和pH呈正相关,与有机质呈极显著正相关（P〈0.01）。本研究为利用添加生物炭改良连作营养基质提供理论依据。

Abstr：A pot experiment was conducted to study the effects of biochar on physicochemical properties of nutrition medium and cucumber growth under continuous cropping in a greenhouse. The results showed that pH, organic matter and available K content of nutrition medium are improved by biochar treatments significantly, as well as the photosynthesis of cucumber leaf and cucumberyield are increased, but the nitrate content in fruit is reduced. Moreover, the effects result from application of 5% biochar are more obvious than that of 3% biochar. Correlation analysis showed that there is positive correlationship between the cucumber yield and available K concent and pH at the level of P 〈 0.05, and significantly positive correlationship between cucumber yield and organic matter at P 〈 0.01. It was suggested that biochar could be used as the effective measures to improve nutrition medium under vegetable continuous cropping.

文章关键词：

Keyword：:Biochar Cucumber Continuous cropping Nutrition medium Physicochemical properties

课题项目：现代农业产业技术体系建设专项资金（CARS-25）; “十二五”科技支撑项目（2011BAD12B03）; 辽宁省科技攻关项目（2011215003）

  本文关键词：添加生物炭对连作营养基质理化性质及黄瓜生长的影响，，由笔耕文化传播整理发布。