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1978年我所承担了全国红薯丰产栽培试验研究,着重探索高产红薯的生长动态。试验4年,供试品种为我所选育的高产良种“74—126”。该品种为短蔓型,蔓较粗壮,分枝较多,生长繁茂,结薯早,薯块膨大快,烘干率为26.5%。试验地为沙壤土,肥力中等,底肥亩施土杂肥70担,磷肥50斤,钾肥30斤,
In 1978, I undertook the research on the cultivation and cultivation of sweet potatoes in China with a focus on exploring the growth dynamics of high-yield sweet potatoes. Test 4 years, the test varieties for my selection of high yielding “74-126”. The varieties of short-Man, vine stout, more branches, the growth of lush, early tuber tubers, tubers swelled fast, drying rate of 26.5%. Test for the sandy loam soil, moderate fertility, soil fertilization at the end of soil fertilizer 70 Tam, 50 kg of phosphate fertilizer, potash 30 pounds,