【摘要】 笔者连续 3年在湖北省咸丰县进行了魔芋健身栽培试验 ,分别对魔芋的种芋消毒、最佳播期、遮荫覆盖、施钾量等进行了研究。结果表明 :外调种芋用 10 0 0万单位农用链霉素 10 0 0倍液 + 2 0 %龙克菌 5 0 0倍液混合消毒 3次 ,效果最好 ;海拔 80 0～12 0 0m山区魔芋的适播期为 5月上旬 ,不仅出苗率可达 99.0 6% ,还可以缩短魔芋出苗前在土壤中的时间 ,减少病原菌侵染机会 ,发病率也最低 ;在海拔 80 0～ 12 0 0m地区种植魔芋 ,遮荫越好 ,发病越轻 ,同时土表覆盖可以降低发病率 7%左右 ;魔芋属喜钾作物 ,在底肥中施 5 0 %硫酸钾 45 0kg/hm2 ,增产效果最好 ,可增产 5 1.2 9%。更多还原

【Abstract】 The experiment in Konjac in Xianfeng county was conducted for three years.The results indicated that seeds disinfection for 3 times with 1?000 multiples agro-streptomycin with 10 million Units and 500 multiples 20% Nong-ke-jun had good effective.Secondly,Konjac sowing time should be on May 10th at altitude 800～1?200?m,because 99.06 percent seedling could come out of land on June 24th,which showed that the farmers planted Konjac too early in March or April.Thirdly,when Konjac was shaded for 70 or 55 percent,the soft rot of Konjac was only 19.34 or 28.60 percent on August 15?th.On the other hand,Konjac covered with straw and others could decrease 7 percent disease.Finally,Konjac was a kind of crop which favored kalium.The test results accounted that 450?kg/hm 2 of 50% kalium sulphate could increase 51.29 percent yields.更多还原