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堆栽单株大红薯栽培目的:①探讨红薯增产潜力。②适宜间作、套种,提高单位面积产量。③可以利用山荒、石荒、河荒、沙荒和四旁隙地的利用率。1975年王胡寨大队试验场首创郑州地区单株高产记录,最大的一株140斤;76年贾寨大队最大的一株140斤;77年贾寨大队最大的一株189斤;候寨公社试验场最大的单块97.5斤;78年王胡寨大队用“一母五子”栽法获得258斤的好成绩。为今后亩产万斤薯树立了信心。下面对堆栽红薯的方法进行简要叙述。一、留足营养面积:要获得单株的高产,必须留足生长的营养面积。一般百斤重单株大红薯,营养面积(3×3)9平方米,一百五十斤者营养面积(4×4)为16平方米,二百斤单株者(5×4)为20平方米。
Planting large sweet potato cultivation purposes: ① explore the yield potential of sweet potato. ② suitable intercropping, intercropping, increase yield per unit area. ③ can take advantage of mountain shortage, stone shortage, river shortage, shortage of sand and the use of four sides of the ground. In 1975, Wang Huzhai Brigade’s pilot plant was the first to record high yield per plant in Zhengzhou, with the largest one weighing 140 kg; the largest one being 140 kg in Jiazha Brigade in 1976; the largest one being 189 kg in Jiazhai Brigade in 1977; Test site the largest single 97.5 kg; 78 years Wang Huzhai brigade with “a mother and five son” planting method to get 258 pounds of good grades. For the future mu kilograms of potato set a confidence. The following method of planting sweet potatoes for a brief description. First, leave enough nutrition area: To get high yield per plant, you must leave enough to grow the nutritional area. General weight per plant large sweet potato, nutrition area (3 × 3) 9 square meters, 150 kg of nutrition area (4 × 4) of 16 square meters, two hundred kilograms of single plant (5 × 4) 20 square meters.