论文部分内容阅读
基于湖南祁阳红壤试验站长达19年的定位试验,于2009年进行了不施肥(CK)、单施化肥(NPK)、单施有机肥(OM)与有机肥无机肥配合施用(NPKM)对春玉米净光合速率、叶面积指数及产量影响的比较研究。结果表明:与单施化肥相比,单施有机肥处理不仅能够显著增加春玉米叶面积指数,同时也有利于提高主要生育期的叶片净光合速率,干物质累积量显著增加,其穗粒数、百粒重及收获指数均显著增加,表现为最终产量增加333.23%。在本试验处理条件下,单施有机肥处理与有机肥无机肥配合施用处理除苗期净光合速率有显著性差异外,在其他光合特性和产量性状上无显著性差异。综合土壤养分及历年平均产量来看,有机肥无机肥配合施用为该地区较佳的施肥方式。
Based on the 19-year long-term experiment of Qinyang Red Soil Experimental Station in Hunan Province, CK (CK), NPK, OMM and NPKM Comparison of net photosynthetic rate, leaf area index and yield of spring maize. The results showed that compared with the single application of chemical fertilizers, the application of organic manure not only significantly increased the leaf area index of spring corn, but also increased the net photosynthetic rate of main growth stages and significantly increased the dry matter accumulation. , 100-grain weight and harvest index increased significantly, the performance of the final output increased 333.23%. Under the experimental treatment conditions, there was no significant difference in the other photosynthetic characteristics and yield traits except for the application of organic manure combined with organic manure and inorganic fertilizer in addition to the significant difference in net photosynthetic rate. Integrated soil nutrients and the average annual production point of view, organic fertilizer with the application of inorganic fertilizers in the region better fertilization.