不同灌溉方式对日光温室青椒生长及产量的影响

为了确定日光温室内青椒的最适合灌溉技术,在日光温室内分别对青椒进行了滴灌、小管出流和沟灌3种灌溉方式的试验研究,分析了不同灌溉方式对日光温室青椒生长发育的影响。试验结果表明:不同灌溉方式对青椒株高、茎粗均无明显影响;相同阶段所测叶绿素含量,滴灌>小管出流>沟灌,且叶片叶绿素的含量和光合速率呈正相关;用显著性水平α=0.1对各处理产量进行方差分析表明,不同处理对产量有显著影响,青椒产量以滴灌最高,小管出流次之,沟灌最低;通过不同处理比较发现,沟灌、滴灌、小管出流水分生产率分别为16.17、35.13、31.59 kg/m3。故日光温室栽培青椒比较适合采用滴灌方式。

Effect of Different Irrigation Methods on Plant Growth of Pepper in Greenhouse

In order to determine the effective irrigation method in the greenhouse,in the paper,experimental research is carried out in the greenhouse adopting the drip irrigation,the tube irrigation,the furrow irrigation respectively.Moreover,it analyzes the effect of different irrigation methods on plant growth of pepper.The result shows that different irrigation methods were not related to the plant height、diameter of pepper significantly.On the same stage by measuring chlorophyll content,drip irrigation>tube irrigation>furrow irrigation and chlorophyll content and photosynthetic are positive correlation.With significance α=0.1 for the yield variance analysis shows that the different irrigation method of a significant impact on yield,drip irrigation yield is the highest,followed by tube irrigation and furrow irrigation is the lowest.Compare to the different irrigation method,the water productivity of furrow irrigation、drip irrigation、tube irrigation are 16.17,35.13 and 31.59 kg/m3.So the drip irrigation is more preferable for pepper production in the greenhouse.