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我所经多年多点试验鉴定,选择出一种青草产量高、种子繁殖系数大、适应性广、用途多、抗逆性能强的优良夏季绿肥品种—竹豆(Phaseolus calcaratns Roxb)。竹豆又名钥匙豆,米豆,属豆科菜豆属,为1年生草本,蔓生型。主根不发达,侧根细长。前期株型直立,在出苗后50—60天,株高55厘米左右时,开始匍匐蔓生。生育期长。1979年我所在4月21日播种,9月21日开花,10月20日成熟收籽。蔓长3—4米,无卷须。复叶由三片小叶组成,子叶呈箭头形,真叶呈心脏形。茎叶上着生浓密的
After many years of experiments, I have identified Phaseolus calcaratns Roxb, an excellent summer green manure variety with high grass yield, large seed multiplication coefficient, wide adaptability, many uses and strong resistance to stress. Bamboo beans, also known as the key beans, rice beans, beans leguminosae, for the annual herb, vine-type. The main root is underdeveloped, lateral root slender. Early plant type upright, 50-60 days after emergence, plant height about 55 cm, began creeping. Long growth period. I planted in April 21, April 21, September 21 blossom, October 20 mature seeds received. Man grow 3-4 meters, no tendrils. Compound leaves by the three leaflets, cotyledons arrow-shaped, true heart was heart-shaped. Stems and leaves thick on the students