不同扦插方式对“商薯19”产量影响研究

为挖掘“商薯19”的增产潜力,以商洛市农户常用的竖插法为对照,采用单株水平扦插法、双株水平扦插法栽培“商薯19”。结果发现双株水平扦插法总产量最高(3 037.81 kg/667 m²),与竖插法产量(1 838.7 kg/667 m²)差异显著(P<0.05)。进一步统计不同扦插方式的大、中薯数量、产量及大、中薯率发现,双株水平扦插法主要通过增加大薯产量和中薯数量来达到增产效果。双株水平扦插法能够同时适应生产淀粉和鲜食的需求,有必要进一步试验、示范和推广。

Effects of Different Cutting Techniques on Yield of Sweet Potato "Shangshu 19"

In pursuit of enhanced yield potential,the vertical cutting method that commonly employed by farmers in Shangluo was used as control,sweet potato "Shangshu 19" was cultivated by both single and double plant horizontal cutting method.The results showed that the double plant horizontal cutting method yielded the highest production (3 037.81 kg/667 m²), demonstrating a statistically significant difference (P<0.05) when compared to the output (1 838.7 kg/667m²) achieved through the vertical cutting method. After analyzing the number, yield and rate of large and medium sweet potatoes with different cutting methods, the double plant horizontal cutting method increased the yield by increasing the number of medium and yield of large sweet potatoes. Double plant horizontal cutting method was necessary to be further tested, demonstrated and popularized since it could adapt the demand of both starch production and fresh-consuming.