| 黄瓜椰糠栽培营养液的适宜浓度探索 |
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| 引用本文： | 钟泽,杨云云,许飞飞,刘西,司龙亭,李文虎.黄瓜椰糠栽培营养液的适宜浓度探索[J].中国瓜菜,2020(1):18-23. |
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| 作者姓名： | 钟泽 杨云云 许飞飞 刘西 司龙亭 李文虎 |
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| 作者单位： | ;1.中国农业科学院郑州果树研究所;2.江苏绿港现代农业发展有限公司 |
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| 基金项目： | 江苏省科技成果转化专项资金：高效蔬菜无土栽培成套技术与装备研发及产业化（BA2014147） |
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| 摘 要： | 为了探索黄瓜椰糠栽培中适宜的流出液EC值指标,根据流出液EC值的高低来调节灌溉液浓度,实现肥料的合理施用。试验设置了1.8、2.2和2.6 mS·cm^-1三个流出液EC值指标,灌溉液浓度的“增减量(/g·L^-1)=(EC值设定值-EC值测定值)×流出率/%”。此模型不仅考虑了EC值设定值与测定值的差异,而且考虑了流出率因素。通过“配液浓度=在用浓度+增减量”,对灌溉液浓度进行连续调控。结果显示,伴随灌溉液浓度的升高与降低,流出液EC值围绕设定值上下波动,基本实现了稳定。流出液中氮、磷、钾、钙、镁元素的含量与EC值设定值正相关,反映了肥料供应水平的高低。当流出液EC值设定在2.2和2.6 mS·cm^-1时,黄瓜的产量差异不显著,却又都比EC值在1.8 mS·cm^-1设定值时显著增加。所以,2.2~2.6 mS·cm^-1可作为黄瓜椰糠栽培适宜的流出液EC值控制区间。
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| 关 键 词： | 黄瓜 温室 椰糠栽培 营养液浓度 |
Adjustments of nutrient solution concentration for cucumber coconut-coir cultivation |
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| ZHONG Ze,YANG Yunyun,XU Feifei,LIU Xi,SI Longting,LIWenhu.Adjustments of nutrient solution concentration for cucumber coconut-coir cultivation[J].China Cucurbits And Vegetables,2020(1):18-23. |
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| Authors: | ZHONG Ze YANG Yunyun XU Feifei LIU Xi SI Longting LIWenhu |
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| Institution: | (Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Science,Zhengzhou 450009,Henan,China;Jiangsu Greenport Modern Agricultural Development Co.,Ltd,Suqian 223800,Jiangsu,China) |
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| Abstract: | This research aims to study the appropriate effluent’s EC value in cultivating cucumber with coconut coir and achieve optimized use of fertilizer by adjusting the concentration of the irrigation solution based on the effluent’s EC value.Three different levels of the EC value were designed as 1.8,2.2,and 2.6 mS·cm^-1.The increased or decreased concentration of the irrigation solution is determined by the product of outflow rate and the difference between the set EC value and the measured EC values.The concentration of the irrigation solution was continuously controlled using the formula“Displacing Concentration=In-use Concentration+(Increased or Reduced Concentration)”.The results show that with the increased or decreased concentration of the irrigation solution,effluent’s EC value fluctuates around the set value and reaches a stable level.The content of nitrogen,phosphorus,potassium,calcium,and magnesium in the effluent is positively correlated with the set EC value.This correlation reflects the level of fertilizer supply.When the effluent’s EC value was set at 2.2 mS·cm-1 and at 2.6 mS·cm-1,the production of cucumber was not significantly different between these two levels,but the production at either of the two was significantly higher than that at 1.8 mS·cm-1.Therefore,2.2 to 2.6 mS·cm-1 can be used as an appropriate EC control interval for cultivating cucumber in coconut coir. |
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| Keywords: | Cucumber Greenhouse Coconut-coir cultivation Nutrient solution concentration |
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