湖北省马铃薯高产栽培技术探讨

Exploration on High-yielding Cultivation Technology of Potato in Hubei Province

通过对脱毒马铃薯不同播期、不同种植密度和不同施肥水平试验,结果表明:在普施45%硫酸钾型复合肥1125 t/hm2的基础上,以播期12月10日,密度7.5万株/hm2,施尿素75 kg/hm2、磷肥900 kg/hm2、钾肥450 kg/hm2、锌肥22.5 kg/hm2作底肥最为适宜,产量为25.31 t/hm2,商品薯率为60.3%。

The experiments for the sowing date,planting density and fertilization level of virus-free potato were carried out,the results showed that： on the basis of generally applying 1125 t/hm2 45% potassium-sulphate-type complex fertilizer,the optimum production pattern was： sowing on December 10th,planting density 75000 plants per hectare,applying carbamide 75 kg/hm2,phosphate fertilizer 900 kg/hm2,potash fertilizer 450 kg/hm2 and zinc fertilizer 22.5 kg/hm2 as the base fertilizer,and it could obtain the yield of 25.31 ton per hectare.