扁豆常规种植,一般到8月中下旬才开始采收,采收期短,一般亩(1亩=677平方米,下同)产鲜荚仅1200千克左右,效益较差。地处海拔600米高山的黄岩区富山乡,采用地膜覆盖和整枝修剪技术,到6月中旬就可采收嫩荚上市,采收期比常规露地栽培延长近3个月。据统计,2004年该乡150亩扁豆,平均 Regular cultivation of lentils, usually until late August began to harvest, harvesting period is short, the general mu (1 mu = 677 square meters, the same below) fresh pods only about 1200 kg, less effective. It is located in Fushan Township, Huangyan District, with an elevation of 600 meters. Using mulching and pruning techniques, the harvesting of green pods will take place in mid-June and the harvesting period will be extended by nearly 3 months compared with the conventional open-field cultivation. According to statistics, in 2004 the township 150 acres of lentils, on average