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象山县处于三面环海,南北曲折狭长的半岛。滨海平原的土壤都是近代浅海沉积物淤积成涂,经人工围垦发育而成。常年滨海中低产稻区面积达5500余公顷。因土壤季节性返盐,有效养分低,水稻单产长期在低水平上徘徊,筛选和推广具有耐盐耐瘠特性的水稻新组合(品种),提高粮食单产,是摆在我县农业技术推广部门的重要课题。 1991年以来引种宁波市农科所选育的杂交晚粳七优7号等新组合进行试验、示范、制种。八年中,组织了14个品种对比试验,13个高产示范片,10个耐盐耐瘠性生产试验,及各
Xiangshan County is surrounded by the sea on both sides, the tortuous long Peninsula. The coastal plain soil is the deposition of modern shallow sea sediment coating, developed by the artificial reclamation. Perennial middle and low yield coastal area of more than 5500 hectares. Due to the seasonal return of soil salt, low effective nutrients, long-term low yield of rice hovering, screening and promotion of a new combination of rice with salt tolerance barren characteristics (varieties), improve grain yields, is placed in our county agricultural extension department An important issue. Since 1991, the introduction of Ningbo Institute of Agricultural selected hybrid japonica hybrid 7 you 7 new combinations for testing, demonstration and seed production. In the past eight years, 14 varieties of comparative experiments, 13 high-yield demonstration films, 10 salt-tolerant and barren-resistant production trials, and