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1987年,怀化市盈口区农技站在盈口乡新家庄村试种薯—稻—薯复种制1.3亩,获得亩产春马铃薯2115.8公斤、中稻647.9公斤、秋马铃薯1489公斤,按薯粮5:1折算,三熟共亩产原粮368.5公斤。其栽培技术如下: 春马铃薯品种怀薯6号,1月23日播种,按2m宽幅分厢条播,行株距40×25cm,每亩施猪牛栏粪1500公斤、尿素和过磷酸钙
In 1987, Huaihua City Yikou District Agricultural Technology Station in Yingkou Township Xinjiazhuang try seed potato - rice - potato seed multiplication system 1.3 acres, access to per mu yield 2115.8 kilograms of spring potato, 647.9 kilograms of middle rice, autumn potato 1489 kilograms, according to potato 5 : 1 conversion, a total of three acres of raw grain 368.5 kilograms per mu. The cultivation techniques are as follows: The spring potato variety Wanshu 6 was planted on January 23 and sowed at 2 m wide carriages. The plant spacing was 40 × 25 cm, and 1500 kg of pig manure was applied per mu. Urea and superphosphate