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本文统计分析了武威地区种植的优良牧草的生育期持续日数和≥0℃的活动积温,认为一年生豆科牧草持续日数在110天以上,积温在2000度一日以上.多年生豆科牧草持续日数在120天以上,积温在1953度一日以上。多年生禾本科牧草在135天以上,积温在1650度一日以上.它们在生育期持续日数和≥0℃的活动积温成正相关,且相关显著,显著性水平0.01,在上述分析基础上建立了同归方程,回归效果检验显著,显著性水平0.01.
In this paper, we analyzed the duration of growing season and activity accumulated temperature of excellent forage planted in Wuwei Prefecture, and considered that the annual number of legume forage was more than 110 days and the accumulative temperature was above 1000 degrees C. The duration of perennial legume forage was 120 days or more, accumulated temperature in 1953 degrees more than one day. The perennial grasses were over 135 days with accumulative temperature above 1650 ° C on the 1st, and they had a positive correlation with the duration of growing period and the accumulated temperature of ≥0 ° C, with a significant and significant level of 0.01. Based on the above analysis, The regression equation, regression test significant effect, significance level 0.01.