起垄方式对玉/苕套作中甘薯生长、光合生理及产量的影响

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玉/苕套作代表了西南地区甘薯栽培的主要模式,套作中甘薯以平作、垄作和堆作为主。就甘薯起垄方式的研究来看,关于垄作的研究较多,而堆作甘薯则较为少见;研究表明堆作具有较垄作增产的优势,但其增产的生理机制尚不清楚,究竟是垄作还是堆作更适合本地区甘薯生产尚无定论。考虑生产实际,为了提高土地综合生产效益,探讨玉米套作模式下更适于本地区的、相对高产的起垄栽培模式,本试验以当地主栽玉米品种‘西大985’和短蔓型甘薯品种‘渝薯33’为材料,采用单因素随机区组设计,研究套作条件下起垄方式对甘薯生长环境、甘薯生态适应性
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