萧山市在杭州湾南岸有大面积的围垦旱地,以种植棉、麻为主,是浙江省商品棉、麻的重要生产基地之一。为了解决垦区广大棉(麻)农的吃粮问题,在围垦区内还需搭配种植一些粮食作物,但若种植水稻,不仅建设水利设施要大最投资,而且引水灌溉势必提高地下水位,影响棉、麻根系的生长而导致棉、麻的减产。为此,市种籽公司于1991年引进早稻IRAZ109品种在城北顺坎,钱江农场,党山镇,农二场等围垦区进行试种。1991年试种30亩,调查典型地块18亩,平均亩产315公斤,1992年试种45亩,调查典型田块25亩,平均亩产305公斤。又据调查,因旱稻采用直插种植,比种植水稻可节省育秧,拨 Xiaoshan City has a large area of ​​reclaimed dry land on the south bank of Hangzhou Bay. It mainly grows cotton and hemp, and is one of the important production bases of cotton and hemp of Zhejiang Province. In order to solve the problem of food supply for the vast number of cotton (hemp) farmers in the reclamation area, some grain crops need to be planted in the reclamation area. However, if rice cultivation is to be carried out, not only will the construction of water conservancy facilities be the most investment-oriented, but diversion irrigation will inevitably raise the water table, Ma root growth led to cotton, linen production. To this end, the city seed companies in 1991 introduced early rice varieties IRAZ109 Shuncheng in the north, Qianjiang farm, Dangshan town, farm two reclamation area for trial planting. In 1991, 30 mu of cultivated land was planted, with a typical plot of 18 mu and an average yield of 315 kg per mu. In 1992, 45 mu of land was planted and 25 mu of typical plots were surveyed, with an average mu yield of 305 kg. According to the survey, because of the direct planting of uprooted rice, than planting rice can save seedling, dial