马铃薯具有产量高、适应性强、生育期短、营养丰富、耐贮藏、粮菜兼用的特点,早已成为深受人们欢迎的作物之一。营口县马铃薯的栽培历史比较悠久,特别是最近几年,以土豆为前茬的复种面积迅速增加。但是,老品种混杂退化比较严重,生育期长,不利倒茬、易感病害、产量低,农民迫切要求更换抗病性强、退化轻、早熟高产、品质好的优良品种。为此,我们在1983年从东北农学院引进“东农303”马铃薯。经过1983、1984两年所内品种比较试验,取得了显著的经济效果。经过五年的试验和大面积生产示范观察积累,将该品种的特性与高产栽培技术分述如下。一、主要经济性状 1、出苗早、生长快:在相同催芽播种 Potato with high yield, adaptability, short growth period, nutrient-rich, storage-resistant, food and use of both features, has long been one of the popular crops. The cultivation history of potatoes in Yingkou County has a long history. Especially in recent years, the area of ​​multi-cropping with potato as the former crop rapidly increases. However, the older breed aggrandizement degenerates more seriously, the growth period is long, unfavorable stubble, susceptible disease and yield are low. Peasants urgently need to replace the fine varieties with strong disease resistance, light degradation, high yield of early maturity and good quality. To this end, we introduced the “Dongnong 303” potato from Northeast Agricultural College in 1983. After 1983, 1984 two years of comparative tests within the species, and achieved remarkable economic results. After five years of experiments and large-scale production demonstration observation accumulation, the characteristics of the varieties and high-yielding cultivation techniques are described below. First, the main economic traits 1, early emergence, rapid growth: in the same germination sowing