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郑州郊区沟赵公社西连河大队一队1978年开展了土豆和红薯间、套作高产栽培试验.其中一区亩产鲜薯10599斤(面积1.27亩,亩产土豆1097斤,红薯9502斤),二区亩产10276斤(面积1.47亩,亩产土豆1217斤,红薯9059斤).其主要栽培措施是:试验田前茬是棉花,中等地力,土质为壤土。年前冬耕一次,深7寸.翌年初春灌水一次,亩施炉灰1千斤,3月中旬春耕。种植方式:一区3.6尺一带,土豆行距1.6尺,株距5寸,亩留苗3334株;红薯堆距(2×2)
Zhengzhou suburban ditch Zhao commune West River team a team of potatoes and sweet potatoes in 1978, set for high-yielding cultivation test.Among which a district of fresh potato 10,599 pounds (area 1.27 acres, 1097 pounds per mu of potatoes, sweet potato 9502 pounds) , The second district mu produce 10276 kilos (area 1.47 mu, yielding 1217 kilograms of potatoes, sweet potato 9059 kilograms.) The main cultivation measures are: before the experimental crop is cotton, medium force, soil is loam. Winter years ago, a deep 7 inch irrigation in the early spring next year, a kilogram of muster ash, mid-March spring. Planting methods: a area of 3.6 feet along the line spacing of potatoes 1.6 feet, 5-inch spacing, Mulamiao 3334 strains; sweet potato pile distance (2 × 2)