我县位于赣西北边缘,长江南岸,气候温和,众山湖港环绕,大部分为马肝土层,靠港为沙壤土层,靠山为红壤土层。这种自然条件有利红薯栽培。我县旱粮历来以红薯生产为主。关于结子红薯增产问题,为我所当前科研主攻对象。 1972年春,我所由湖南省安化县良种场引进“四川57—54”、“河北351” 等两个结子红薯品种,以“四川57—54”为母本,“河北351”为父本,配合栽培面积0.5亩,收到种子0.5斤,种薯亩产5400斤。 1973年春,我所红薯种子和种薯推广到全公社各大队,其中李铺大队林场试种成功,收到种子0.4斤。群众反映,结子红薯制种困难。我所 My county is located in the northwest edge of Jiangxi, the southern bank of the Yangtze River, a mild climate, surrounded by mountains and lakes, most of the Ma liver soil, relying on Hong Kong as sandy loam soil, the backdrop of red soil. This natural conditions conducive sweet potato cultivation. I County dry grain has always been the main production of sweet potato. About knot sweet potato yield, as my current research main target. In the spring of 1972, I introduced two sweet potato varieties “Sichuan 57-54” and “Hebei 351” from Anhua County, Hunan Province. Using “Sichuan 57-54” as the female parent and “Hebei 351” as the male parent , With 0.5 acres of cultivated area, received 0.5 kg seeds, 5400 kg seed mu yield. The spring of 1973, I sweetened the seeds and seeds of sweet potato to the brigade of the whole commune, including Li Pu team farm trial success, received 0.4 kg seeds. The masses reflect, knot sweet potato seed production difficulties. I