鸣鹤镇是慈溪市主要产粮区,随着种植业结构的调整,逐步形成了二季茭白一季稻的栽培模式,茭白面积已达2800亩(1亩=667平方米,下同)。大棚茭白栽培技术的推广,不仅解决了茭白生产中的无公害问题,还拉长、提早了本地茭白的应市时间,增加了茭农收入。近几年,大棚茭白平均亩产为2811千克,平均亩产值为6746元,露地茭白平均亩产为1850千克,平均亩产值为2870元,虽大棚栽培亩成本比露地多 Minghe Town is the main grain-producing area in Cixi City. With the adjustment of the planting structure, the cultivation mode of the two-season rapeseed white rice has gradually been formed. The area of ​​razor clams has reached 2,800 mu (1 mu = 667 m2, the same below). The popularization of white cultivation technology in greenhouse can not only solve the problem of pollution-free in the production of white rice, but also lengthen the time required for the local market and increase the income of farmers. In recent years, the average yield per mu in the greenhouse is 2811 kg, the average yield per mu is 6,746 yuan, the average yield per mu is 1,850 kg in the open field and the average yield per mu is 2,870 yuan. Although the cost per mu in greenhouse cultivation is more than that in the open field