芝麻与甘薯套种模式及增产效益研究

Study on Intercropping Model of Sesame and Sweet Potato and Its Increasing Yield

以普通大田肥力为基础,甘薯选择地方品种07-8-6、芝麻选择中早熟品种豫芝11号进行芝麻与甘薯套种模式研究;试验采取随机区组排列,3次重复,3个处理水平(纯种芝麻、纯种甘薯、甘薯芝麻套种)。结果表明:甘薯与芝麻套种均较单一种植其中一种作物增效明显,套种甘薯大薯块增加,小薯块减少;套种芝麻千粒重增加,株高降低。套种芝麻折合产量较纯种芝麻增产达9.07%,套种甘薯折合产量较纯种甘薯增产达17.42%,增产均显著。芝麻与甘薯以合理的密度套种可以增强芝麻的抗逆性及增加千粒重,增加甘薯大薯率及提高品质,从而增产增收。间作套种模式可采取每栽3垄甘薯套种1垄芝麻,甘薯密度5.25万~6.00万株/hm^2,芝麻密度18.0万~22.5万株/hm^2。

Based on the common field fertility, the intercropping model of the local sweet potato variety 07-8-6 and the sesame Yuzhi 11 was conducted in this paper. The experiment was carried out with randomized block arrangement, three repetitions and three treatments （pure sesame, pure sweet potato,intercropping）. The results showed that sweet potato sesame intercropping model was more effective than the single one,it mainly showed as follows ：big potato tuber was increased,small potato tuber was reduced,and 1000-grain weight of sesame increased,plant height was reduced. Compared with pure sesame,intercropping sesame production increased by 9.07% .Compared with pure sweet potato,intercropping sweet potato production increased by 17.42%, the yield increased significantly. Thus, the reasonable density intercropping of sesame and sweet potato could not only enhance the stress resistance of sesame,increase 1000-grain weight and the rate of big potato ,but also improve the quality, and increase the yield. Intercropping model was taken by each of the three ridge sweet potato intercropping a ridge sesame, sweet potato density of 52 500-60 000 plants per hectare, sesame density of 180 000-225 000 plants per hectare.