在河北张北小二台旱农试区研究表明，高寒半干旱区马铃薯聚垄集肥覆膜技术效应显著，生育前期具有明显的保水增温效果，且显著地促进了地上部和地下部生长发育和块茎与地上部比值的提高，但同聚垄覆膜处理相比，施肥在一定程度上又抑制了块茎与地上部比值的提高。同平种处理相比，聚垄集肥覆膜干薯产量提高185.3%～230．3％，作物水分利用效率提高10.9kg/(mm.hm2)～10.93kg/(mm.hm2)，聚垄集肥覆膜是提高作物水分利用效率与充分挖掘作物生产潜力的有效途径。%The effect of ridging and fertilization and plastic film coveringof potato was great in semiarid region with cold climate and high elevation. The result showed that the influence to the water conversation and heat preservation was great in the early stage of growth. The method of ridging and fertilization and plastic film covering not only could accelerate the development of aerial parts and subsurface parts but also increase the ratio of tuber/aerial parts. Compared with the treatment of ridging and plastic film covering, fertilizer application had restrained the increasing of the ratio of tuber/aerial parts. Compared with the treatment of common sowing, the yield of dry potato of ridging and fertilization and plastic film covering had increased 185.3%～230．3％， the water use efficiency had increased 10.9 kg/(mm.hm2)～10．93 kg/(mm.hm2). So the ridging and fertilization and plastic film covering was an effective way of increasing water use efficiency and full excavating crop productive potential.
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