甘薯间作糯玉米的高产高效模式分析

Analysis of High Yielding Efficient Patterns of the Sweet Potato Intercropped with Waxy Corn

为研究不同栽种规格的甘薯间作糯玉米模式和发掘高产高效间作模式,本实验对甘薯净作、糯玉米净作和15种甘薯间作糯玉米模式进行了鲜薯产量和经济效益的研究。结果表明:甘薯间作糯玉米模式是可行的,体现出明显的间作优势;不同间作模式的经济效益不同,其中处理16(四间双,株距30 cm)的鲜薯产量(22 670.16kg/hm2)是间作处理中最高的,处理16的经济效益(37 782.16元/hm2)也是供试处理中最高的,综合评价得出处理16的甘薯间作糯玉米模式最合理。此结果为进一步推广高产高效甘薯间作糯玉米模式提供有利依据。

Sweet potato and waxy corn were mono-cultured, and sweet potato was intercropped with waxy corn in 15 intercropping patterns. The yield and economic benefits of sweet potato and waxy corn in monoculture and intercropping were analyzed to develop high-yielding efficient patterns of intercropping of the sweet potato with waxy corn. The results showed that the patterns of intercropping of sweet potato with waxy corn were feasible and had an obvious advantage. The economic benefits varied in different intercropping patterns. The intercropping pattern of 4 rows of sweet potato and 2 rows of waxy corn with a plant distance of 30 cm gave the highest fresh yield （2 2670.16 kg/hm2） of fresh sweet potato and the highest economic returns （RMB 37 782.16 yuan/ha） among the intercropping patterns. Comprehensive evaluation showed that this intercropping pattern was the most reasonable. The experiment provides references for the development of optimum high-yielding efficient patterns of intercropping of sweet potato with waxy corn.