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本文研究了川西平原水旱连作高产田作物群体生产力和复种模式。结果表明,麦稻两熟和麦稻秋玉米(或马铃薯)3熟制都可高产,产量分别为15217.5kg/hm ̄2,15740.25kg/hm ̄2和16557.0kg/hm ̄2。年光能利用率,经济产量分别为0.91%,0.94%和0.99%,生物产量分别为1.96%,2.29%和2.42%。每公顷产6000kg以上小麦群体最大叶面积系数为5.5~60,最高苗为692.65~769.12苗/m ̄2,经济系数为0.43~0.44。每公顷产9000kg以上水稻群体最大叶面积系数为7~8,最高苗为393.10~461.47苗/m ̄2,经济系数为0.48~0.49。在麦稻秋玉米中,每公顷产7500kg左右杂交水稻品种宜选用早熟类型,秋玉米提早育苗保证95~100天的生育期。秋马铃薯提前7~10天催芽,保证70天左右的生育期。
This paper studied the crop productivity and multiple cropping patterns in the dryland continuous cropping highland in western Sichuan Plain. The results showed that the yield of wheat two crops and autumn wheat (or potato) 3 could all be high-yield, and the yields were 15217.5kg / hm2, 15740.25kg / hm2 and 16557.0kg / hm2, respectively. Annual utilization of light energy, economic output were 0.91%, 0.94% and 0.99% respectively, and the biological yields were 1.96%, 2.29% and 2.42% respectively. The maximum leaf area coefficient of above 6000kg per hectare of wheat was 5.5 ~ 60, the highest seedling was 692.65 ~ 769.12 seedlings / m ~ 2, the economic coefficient was 0.43 ~ 0.44. The maximum leaf area coefficient of rice population above 9000kg per hectare was 7-8, the highest seedling was 393.10 ~ 461.47 seedlings / m ~ 2, and the economic coefficient was 0.48 ~ 0.49. In wheat autumn corn, about 7500kg per hectare hybrid rice varieties should use early maturing types, early corn seedlings to ensure 95 to 100 days of growth. Autumn potato germination 7 to 10 days in advance, to ensure that about 70 days of growth period.