不同套种模式甘薯与糯玉米的农艺性状及产量

Effects of Different Inter-planting Patterns on Agronomic Traits and Yield of Sweet Potato and Waxy Corn

为山西省晋中及周边地区甘薯-糯玉米套种模式的选择及示范推广提供参考,通过大田试验分析甘薯和糯玉米不同种植比例下农艺性状的差异和经济效益。结果表明:在甘薯-糯玉米不同套种模式的3个处理中,以处理2最佳,即糯玉米和甘薯的种植行数比为1∶3,玉米密度为1 800株/667m2,甘薯密度为2 800株/667m2时,糯玉米穗长21cm,穗行数18行,穗产量1 920个/667m2;甘薯干物质率为27.31%,出粉率为18.72%,产量为2 949.33kg/667m2,经济效益达5 486.93元/667m2,该模式可在山西省晋中及周边地区进行大面积示范。

The agronomic traits and economic benefit of sweet potato and waxy corn were compared by a field experiment under different inter-planting ratio of sweet potato to waxy corn to provide a reference for selection and demonstration of sweet potato-waxy corn inter-planting pattern in Central Shanxi and surrounding area.Result：When the planting row ratio of waxy corn to sweet potato is 1∶3 and the planting density of waxy corn and sweet potato is 1 800 plants/667 m^2 and 2 800 plants/667 m^2 respectively,the ear length and row number per ear and ear yield of waxy corn are 21 cm,18 and 1 920 ears/667 m^2 respectively,the dry matter rate,flour yield and yield of sweet potato are 27.31%,18.72% and2 949.33 kg/667 m^2 separately and the economic benefit is up to 5 486.93 Yuan/667 m^2.The waxy corn and sweet potato inter-planting pattern with the planting row ratio of waxy corn to sweet potato=1∶3 can be extensively demonstrated in Central Shanxi and surrounding area.