平阳县的缘萍(满江红)生产,自1962年城西公社越夏试验成功以后,已逐步地从春季养萍、早稻用萍向全年养萍、全面用萍过渡。1964年,全县晚稻田养萍面积16,200余亩,比上年增加22倍。萍养到那里,增产到那里。根据35个生产单位的1,720亩田调查,不论单季晚稻、间作晚稻或连作晚稻田间养萍,都有不同程度的增产,增产幅度为8.5～32.0％。一般说,山区、牛山区比平原区增产多些,低肥地区又比高肥地区增产多些。亩施合标准肥20担以上,养萍田在亩产606斤的基础上增产8.5～ Pingyang County edge (Azolla) production, since 1962 West commune more successful summer test, has gradually raised the spring from the Ping, early rice Ping to the whole year with Ping, Ping with full transition. In 1964, the county’s late rice paddy area of ​​more than 16,200 acres, an increase of 22 times over the previous year. Ping raised there, increase production there. According to the survey of 1,720 mu of 35 production units, both the single-season late rice, the intercropping late rice and the continuous cropping late-season rice paddy have different levels of yield increase, with the increase rate of 8.5% to 32.0%. Generally speaking, mountainous areas and Niu Mountain areas have produced more output than the plain areas, and areas with low-level fertilizers have produced more output than high-yield areas. Mushi standard fertilizer 20 or more, raise Pingtian yield of 606 kg per mu yield 8.5 ~