不同连作土壤对辣椒生长发育的影响研究

试验采用盆栽方式研究了辣椒正茬土壤、连作1 a土壤和连作3 a土壤对辣椒生长发育状况的影响。结果表明:土壤肥力充足的情况下,在辣椒生长过程中,连作土壤使辣椒株高、茎粗减小,根系活力和叶绿素含量降低,根系和叶片的SOD酶、POD酶活性增加,植株提前衰老。并且随着连作年限的增加对辣椒的危害程度加大,连作3 a土壤大于连作1 a土壤。经分析,连作土壤对根系中的SOD酶和POD酶活性的影响大于叶片中相应的酶,根系中的酶可以作为研究辣椒连作障碍有效的生理生化指标。在该试验中,化感作用很可能是导致辣椒连作障碍的主要因素之一。

The Effect of The Different Soil of Continuous Crops Time to Pepper Growth

The effect of the soil of one year continuous crops and three years continuous crops to pepper growth were studied in pot experiments.For the sake of further study in mechanism and cure of obstacles of pepper continuous cropping offer academic gist.The results showed that during the growth period,under the condition of ample fertilizer,plant height,stem diameter,root activities and chlorophyll content were obviously lower than those under the condition of mono-cropping.The activities of SODase and PODase in...