四棱豆又名翼豆、四角豆。是豆科蝶形亚科四棱豆属的一个栽培种。一年生或多年生。地上结荚,地下长薯,是一种根、茎、叶、花、果均可利用的特菜品种。 四棱豆原产潮湿热带,属喜温短日照植物,北纬31°是其正常发育的临界纬度。可选用早熟2号,该品种具有对光周期不敏感和为完成生长发育所需积温较低,适应性广,早熟丰产的特点,据测定,该品种富含蛋白质、维生素和矿物质居豆类之冠,其赖氨酸含量超过大豆,块根含蛋白质25％比甘薯含量还高5倍。种子、鲜荚矿物质元素中常量元素与微量元素均甚丰富。嫩叶中胡萝卜素含量比胡萝卜高4倍以上。一亩四棱豆所结根瘤能固氮 Four-winged beans, also known as wing beans, beans. Is a legume butterfly subfamily four genus A cultivated species. Annual or perennial. Pods on the ground, underground long potato, is a root, stem, leaves, flowers, fruit can be used special dishes varieties. Tetrastigma native humid damp, is a kind of short sunshine plants, north latitude 31 ° is the normal development of the critical latitude. Can be used precocious 2, the species is insensitive to the photoperiod and the required temperature to complete the growth and development of low, wide adaptability, early maturity and high yield, according to the determination of the variety is rich in protein, vitamins and minerals in beans The crown, the lysine content of more than soybeans, tubers containing 25% protein content than the sweet potato is also 5 times higher. Seeds, fresh pods mineral elements of the major elements and trace elements are very rich. Carotene content in young leaves more than 4 times higher than carrots. Nodular aconite rooted nodules can nitrogen fixation