我們農场原規划的50万畝荒地中、有50％是海濱鹽土(光板地);这些地几百年來無人过问,含鹽量在3—15％,寸草不生。1957年曾试种了一小部分,經驗証明:这种土壤如不加以改良,扦秧后大部發生縮苗、死苗,管理好的每畝能收百斤左右,否則顆粒不收,种植旱作物根本談不到。因此部分职工对开垦种植光板地沒有信心。为了征 50% of the original 500,000 hectares of wasteland planted on our farms is seaside saline soil (light board ground); these areas have been left uncovered for hundreds of years with salt content of 3-15%, with no grass. A small part was planted in 1957. Experience has shown that if this kind of soil is not improved, most seedlings and dead seedlings will be harvested after the seedling is transplanted. Dry crops simply can not talk about. Therefore, some workers have no confidence in planting planted light boards. In order to sign