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.

针对种粮比较效益较低,农村青壮劳动力大量外出务工,探讨玉米在粗放种植管理条件下达到一定的产量水平,产生一定的经济效益.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,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,结果是桂单0810活杆成熟,每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,玉米桔杆作为饲料当地养殖户已经接受,即是粮食与饲料兼得相对较好的一个品种.

为探究出适宜的种植带幅,采用单因子密度设计,研究了不同带幅宽厢宽带玉米间作花生对作物产量以及经济效益的影响.结果表明:宽厢宽带种植技术与玉米常规栽培相比较,其产值平均增加1000元/667 m2左右;花生以4m带幅产量最高,玉米产量则是2.67m带幅最高,但综合产值最高的是3m带幅,达2193.72元/667m2,经济效益最好.

紫优93是贵州省水稻研究所选育的杂交水稻新组合,通过试种表现出穗大、高产、群体结构好,熟期转色好。对紫优93在876.57kg/667m2高产的情况下,生物性状如茎蘖动态,抽穗期粒叶比,叶片长宽的表现。