箭舌豌豆原产于欧洲南部和亚洲西部,在我国主要分布于西北、华北各地。我所1978年引种试种,1979年进行品比,1980年作播量试验,经三年鉴定认为:一、箭舌豌豆是高产肥田的优质绿肥箭舌豌豆为豆科大巢菜属一年生草本植物。主根稍肥大,入土不深,侧根发达,在10～25厘米的土层中,根群密布,根瘤数量比豌豆多1/3,对后作增产作用大于豌豆。株高为50～150厘米,茎较毛苕子略粗,多分枝,匍匐向上,在老建平开花盛期至结荚期每亩鲜草产量可达1600～2700斤。据测定一亩箭舌豌豆固氮量为12.3斤,相当于61.5斤硫铵。翻压 Miao tongue peas native to southern Europe and western Asia, mainly distributed in our country in northwest, north China. I introduced in 1978, trial planting, 1979 than the ratio of sowing in 1980 for experiment, after three years of appraisal that: First, tongue tongue pea is high-quality green manure fertilizers tongue Tonga peas leguminosae annual herb plant. Main root slightly hypertrophy, soil is not deep, developed lateral roots, in 10 ~ 25 cm of soil, the root mass, nodules more than 1/3 than peas, after the effect of increasing the yield more than peas. Plant height of 50 to 150 cm, stems hairy hair slightly thicker, more branches, creeping up, in the old Jianping flowering period to pod per mu fresh grass yield up to 1600 ~ 2700 pounds. It is determined that acreage peas nitrogen per acre amount of 12.3 kg, equivalent to 61.5 kg ammonium sulfate. Turn pressure