红壤旱地保护性耕作对玉米生长发育、产量性状及经济效益的影响  

Effects of Conservative Tillage on Growth,Development and Yield of Corn Mulched with Upland Red Soil

作　　者：廖萍[1] 黄国勤[1] 

机构地区：[1]江西农业大学生态科学研究中心,江西南昌330045

出　　处：《江西农业学报》2007年第4期10-12,共3页Acta Agriculturae Jiangxi

基　　金：教育部科学技术研究重点项目(03067);江西省农业厅2006年农牧渔业科研计划项目(赣农字[2006]23)共同资助

摘　　要：研究了秸秆覆盖和地膜覆盖两种保护性耕作方式对红壤旱地玉米生育进程、干物质积累、根系活力、产量及产量性状的影响。试验结果表明:保护性耕作可以提高玉米的生长速度,进而增加其叶面积,促进干物质积累,提高玉米的根系活力,改善了玉米的产量性状,最终提高了玉米产量,增产效果好,最高可达4991.9kg/hm2;同时也具有较好的经济效益。This paper studied the effects of two conservative tillage methods （ straw stalk cover and the mulching plastic cover） on growth and developmental advancement, dry matter accumulation, root system vigor, yield and yield characters of com. The test re- suits indicated that： the protective cultivation may enhance the growth speed, then increase leaves area, promote the accumulation of dry matter, enhance the root system vigor, improve yield characters, finally enhance the corn yield, improve the production effect; the maximum yield could reach to 4991.9 kg/hm^2, simultaneously had better economic efficiency.

关 键 词：保护性耕作 玉米 红壤旱地 生长发育 产量 经济效益 

分 类 号：S513[农业科学—作物学]