摘要
本文对三种有机肥料和二种土壤的肌醇六磷酸磷含量和有机磷进行了测定和分组,通过无菌溶液培养,比较了肌醇六磷酸磷与无机磷在等磷量的条件下对水稻的营养效果。结果表明:猪、鸡粪中有机磷的形态主要是以肌醇六磷酸钙镁盐为主,而土壤和牛粪是以肌醇六磷酸铁的形式为主。肌醇六磷酸磷对水稻的营养效果明显优于无机磷。磷的分组结果表明:猪、鸡粪中有机磷以活性和中等活性有机磷为主,而土壤则以稳定性有机磷为主,牛粪介于二者之间。因此,猪、鸡粪中有机磷的有效性高于牛粪,而以土壤中的有机磷为最低。
The paper deals with the inositol hexaphosphate contents and fractionation of organic P from three kinds of organic manures and two kinds of paddy soils. The nutritional effect of inositol hexaphosphate on the growth of rice seedlings was compared with that of inorganic phosphorus at the same P level. Inositol hexaphosphate was the main form of organic P in the organic manures and paddy soils. In pig and chicken feces, Ca-or Mg-inositol hexaphosphate was up to 80% of the total organic phosphorus. However, in the paddy soils and cattle feces, Fe-inositol hexaphosphate was predominant in the total inositol phosphate. Fractionation of organic P indicated that the availability of organic P in organic manures was higher than that in soils . In aseptic culture, inositol hexaphosphate had a better effect on rice seedling growth than inorganic phosphorus.
出处
《土壤学报》
CAS
CSCD
北大核心
1992年第4期365-369,共5页
Acta Pedologica Sinica
关键词
有机肥料
肌醇六磷酸
有机磷
水稻
organic manure, Inositol 6-P, Organic P fractionation, Paddy rice, Aseptic culture, Phytase.
