扁荚山黧豆为一年生或越年生豆科作物,原产葡萄牙。1977年从外省引入我省后,经几年的种植证明,它具有早熟耐寒、不择土壤、生长势旺、含氮量高、容易留种、产量高等优点,是肥料饲料兼用的旱地秋冬播种的优良豆科作物。据我所化验,盛花期茎、叶含氮0.53％、五氧化二磷0.22％、氧化钾0.42％。 Flat pods Hill beans for the annual or perennial leguminous crops, native to Portugal. After introduced into our province from other provinces in 1977, after several years of planting, it has the advantages of early maturing cold resistance, no soil selection, vigorous growth, high nitrogen content, easy to stay seed and high yield. Good legumes. According to my test, full flowering stems, leaves nitrogen 0.53%, 0.22% phosphorus pentoxide, potassium 0.42%.