不同品种和栽培措施对盆周山区春马铃薯生育期和产量的影响

为了研究不同品种和栽培措施对盆周山区春马铃薯生育期和产量的影响，笔者在大田条件下进行盆周山区主栽春马铃薯品种‘米拉’和‘川芋56’与各地新品种在产量和生育期的对比试验，以及不同栽培方式对春马铃薯生育期和产量的影响试验。从产量和生育期综合考虑，结果表明新品种产量优势突出，建议推广，而‘米拉’和‘川芋56’，建议引进原原种扩繁；覆膜相对比不覆膜，垄作相对比平作都有明显的增产效应，因此最佳的栽培方式为垄作+地膜覆盖。

Effect of Different Varieties and Cultivated Practices on Growth Period and Yield of Spring Potato in Penzhou Maintainous Area

The paper aims to study the effects of different varieties and cultivated practices on the growth period and yield of spring potato in Penzhou Maintainous Area. Under field conditions, the contrast tests on the growth period and yield were conducted between spring potato varieties Mira and Chuanyu 56 and new varieties from various areas, and the influence of different cultivation methods on growth period of spring potato was also studied. The results showed that, taking both yield and the growth period into consideration, the new varieties had yield advantages and were proposed to be promoted in production, while Mira and Chuanyu 56 were recommended to be introduced with original seed propagation. The comparison of the flatten planting and ridge tillage, mulching and no mulching showed that mulching and ridge had obvious effect on yield increase, therefore, the best cultivation way was ridge mulching.