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[1]XIAO Ji-bing,SUN Zhan-xiang,JIANG Chun-guang,et al.Effect of Variety and Density on Maize Growth under Ridge Film Mulching and Furrow Planting[J].Research of Soil and Water Conservation,2013,20(01):134-140.

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Effect of Variety and Density on Maize Growth under Ridge Film Mulching and Furrow Planting

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 01 Page number: 134-140 Column: Public date: 2013-02-28

Title:: Effect of Variety and Density on Maize Growth under Ridge Film Mulching and Furrow Planting

Author(s):: XIAO Ji-bing¹, SUN Zhan-xiang², JIANG Chun-guang¹, HOU Zhi-yan², FENG Liang-shan², BAI Wei²; 1. Institute of Soil and Water Conservation of Liaoning, Chaoyang, Liaoning 122000, China;
2. Liaoning Province Academy of Agricultural Science, Shenyang 110161, China

Keywords:: maize; ridge film mulching and furrow planting; variety; density; yield

CLC:: S513;S318

DOI:: -

Abstract:: In order to increase rainfall use efficiency and yield of maize in dryland in Chaoyang area, Liaoning Province, the effects of variety and density on maize growth under ridge film mulch and furrow planting were studied by split-plot experiment with two factors. This experiment chose three varieties (mid-maturing variety Liaodan 33, mid-late-maturing variety Shenhe 201 and late-maturing variety Dongdan 60) and six kinds of density(37 500, 45 000, 52 500, 60 000, 67 500, 75 000 plants/hm²), and variety was set in main plot and density was arranged in the sub-plot. The results showed that the change rule of plant height increased at first and decreased later, the stem diameter and areas of three ear leaves gradually reduced and LAI gradually increased with the increase of density. The difference of LAI was significant or very significant under single factor of the variety or the density and under the interaction of these two factors. As the density increased, yield components(ear length, grain number per and 1 000-seed weight etc.) gradually reduced, however, the yield gradually increased as the density increased. The average yield (13 781.89 kg/hm²) and WUE (28.73 kg/(mm·hm²) of Shenhe 201 were the highest among the three varieties. In order to develop fully yield increasing potentiality of micro rainwater-collecting planting, the proposal was to choose mid-late-maturing variety and reasonable dense planting.

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