生姜对不同氮肥品种的效应

Response of Ginger to Nitrogen Form

氮素可显著促进生姜的生长 ,提高叶片叶绿素含量 ,增强光合作用 ,提高生姜产量 ,改进生姜品质。但不同氮肥品种的作用存在差异 ,幼苗期 Na NO3的促长作用最大 ,而盛长期则其促长作用不及 NH4 NO3,CO( NH2 ) 2 和 NH4 HCO3,因此最终产量仅 38640 kg/ hm2 ,尽管比 CK增产 4 7.37% ,但仍比其它氮肥处理低 9.7%～ 11.7%

Nitrogen could increase the growth of ginger,content of chlorophyll,photosynthetic rate ginger yield and quality.The effects of different form nitrogen were different,effects of NaNO 3 were best at seedling stage,but it was not better than effects of NH 2NO 3,CO(NH 2) 2 and NH 4HCO 3 at vigorous growth stage.The yield of ginger applying NaNO 3 was 38640 kg/hm 2,thought the yield was 47.37% higher than CK,it was 9.7~11.7% lower than the other form nitrogen.