高寒山区玉米、马铃薯特种套作模式研究简报

Studies on Relay Cropping of Maize and Potato in Cold Mountainous Area

通过马铃薯、玉米单作、二套二等距、二套二不等距、四套四等距、四套四不等距等种植模式研究,结果表明:单作玉米比单作马铃薯经济效益高;马铃薯与玉米套作均比单作玉米或单作马铃薯经济效益高;在套作模式中,产值差异不显著,但二套二经济效益比四套四经济效益高,二套二又以不等距栽培较好。

Relay cropping of maize and potato was studied and treatments were potato only,maize only,two rows of each crop with the same distance,two rows of each crop with different distance,four rows of each crop with the same distance,four rows of each crop with different distance.The results showed that the economic benefit of maize only was higher than potato only.Economic benefit of relay cropping of maize and potato was higher than potato only or maize only.Difference of yield among different relay cropping models was not significant but economic benefit of two rows of each crop was higher than four rows of each crop.Economic benefit of two rows of each crop with different distance was the highest.