1　前　言沈阳地处松辽平原 ,土地肥沃 ,气候温和 ,无霜期 150ｄ左右 ,年平均降雨量 70 0多ｍｍ ,适宜栽种马铃薯。近年来 ,随着早春马铃薯消费市场的繁荣与扩大 ,春马铃薯栽培面积不断扩大。我们知道 ,早熟和高产有一定的矛盾 ,而早熟与产品的效益是一致的 ,因此马铃薯促早熟 1 Introduction Shenyang is located in the Songliao Plain, with fertile land and mild climate. The frost-free period is about 150 days with an average annual rainfall of more than 70 0 mm. It is suitable for growing potatoes. In recent years, with the prosperity and expansion of the potato consumer market in early spring, the cultivation area of ​​spring potatoes has been constantly expanding. We know that early maturity and high yield have some contradictions, but the benefits of early maturity and the product is the same, so early maturing potato