通过不同浓度盐溶液浸泡培养发芽试验和田间小区试验 ,研究了从美国引进的海滨锦葵的生物学特性、萌芽期耐盐性、播种量和施氮量。结果指出 ,海滨锦葵耐盐性很强 ,在 5‰盐溶液中培养 10d ,海滨锦葵的发芽率仍然达到 63 3% ,即使在 2 0‰盐溶液中培养 15d ,也还有少量种子萌发。海滨锦葵是一种营养结构合理的耐盐油料植物 ,在江苏沿海滩涂具有很好的适应性。海滨锦葵的最大播种量和施氮量分别为 2 57kg/亩和 10 6kg/亩 The biological characteristics of Malvaceae introduced in the United States, salt tolerance in infancy, sowing rate and nitrogen application rate were studied by soaking germination tests and field plots in different concentrations of salt solution. The results showed that sea mallow had strong salt tolerance, and the germination percentage of mallow was still 63.3% when cultured in 5 ‰ salt solution for 10 days. Even after 15 days of culture in 20 ‰ salt solution, a small amount of seeds germinated . Malvaceae is a kind of nutrition structure of salt tolerant oil plants, coastal beach in Jiangsu has a good adaptability. The maximum seeding rate and nitrogen application rate of mallow sea larvae are respectively 2 57kg / mu and 106kg / mu