Comparative Experiment of Potato Planted Under Plastic Mulching and to the Side of Plastic Mulching in Dry Land

A comparative experiment was carried out in dry land to reveal the difference of potato planted under plastic mulching and to the side of plastic mulching and to understand the potential value to the potato production in the mid-west Inner Mongolia.Emergence,flower budding,and flowering were advanced by 3 d,3 d and 2 d,respectively,when the potato was planted to the side of plastic mulching as compared with under plastic mulching.Large sized tuber number and weight,and marketable tuber percentage were also increased by 36.4%,14.6% and 22.9%,respectively.The income by planting potato to the side of plastic mulching was 699.3 Yuan based on 667m2 of land as compared with 678.4 Yuan when potato was planted under plastic mulching,so 20.9 Yuan of increase in economic return was obtained by potato farmer.All these data suggest that planting potato to the side of plastic mulching be extended in mid-went Inner Mongolia.