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箭舌豌豆是一种重要的豆科绿肥,结瘤率高,共生固氮活性强。根瘤固氮活性的有效时间主要集中在营养生长阶段,伸长期最高,初花期开始下降。高温对箭舌豌豆根瘤固氮活性的影响比低温大,在0～25℃范围内,无论处理3小时或24小时,固氮活性变化的幅度均不大,在-5℃条件下放3小时固氮活性仍可保持在最高水平的50％,但温度升至30℃时固氮活性显著下降。在南方果园的冬季绿肥中,箭舌豌豆根瘤固氮的农业效果均比苕子、紫花苜蓿和白三叶草的好,其固氮量比27904苕子大10倍。
Tongue pea is an important legume green manure, nodulation rate, symbiotic nitrogen fixation activity. The effective time of nodulation nitrogen fixation mainly concentrated in the vegetative growth stage, the highest elongation stage, the first florescence began to decline. The effect of high temperature on the nitrogen fixation activity of Tricholoma gigantea nodules was greater than that of low temperature. No significant changes were observed in the nitrogen fixation activity at 0 ~ 25 ℃ for 3 hours or 24 hours. After 3 hours at -5 ℃, Can maintain the highest level of 50%, but the temperature rose to 30 ° C significantly decreased nitrogen fixation activity. In the southern green orchards in winter green manure, Bolivia nodal nitrogen fixation of the agricultural effect than prickly heat, alfalfa and white clover is good, its nitrogen fixation than 27,904 raccoon 10 times.