安龙县玉米品种耐瘠生物性状表现研究

为探讨玉米在粗放种植管理条件下的产量水平和经济效益。选择了6个适应性较强的玉米品种，在整个生育期中不施用任何肥料，不喷施农药的粗放生产管理条件下，考查玉米品种之间对土壤的生产能力。结果表明桂单0818活杆成熟、果穗长、粒大、折干率较高，经济产量和生物产量极显著最高，经济效益明显。667m2生物生产力3527．7kg，经济生产力721．70kg，产值2293．28元，纯收益1013．28元。桂单0818是粮食与饲料兼得相对较好的一个品种。

Barren Resistance of Maize Varieties in Anlong County

To probe the product and economic effect under extension cultivate management condition of maize,6 varieties have a good adaptability were selected as materials to planted without fertilization and pesticide,then examined the production ability of soil among maize varieties. The results were as follow:Guidan 0818 had many advantages,such as live stem mature,long ear,big kernel,higher drying rate,which had obvious economic benefits because of its supreme economical and biological yield and had a significant at 0. 01 level compared with others. The biological and economical productivity were 3527. 7 kg/667m2 and 721. 7kg/667m2 respectively,and its production value was reached up to 2293. 28 Yuan/667m2 and got 1013. 28 Yuan/667m2 as net return. From what has been dis-cussed above that Guidan 0818 was a good variety for both food and feed.