Facultative symbiotrophic nitrogen-fixing associations in rice soils of India

Autor:	P. B. B. N. Charyulu, V. Rajaramamohan Rao, C. Ramakrishna
Rok vydání:	1978
Předmět:	Soil salinity Agronomy Soil biodiversity Soil organic matter Soil biology Soil water food and beverages Environmental science Soil classification Soil fertility Soil type complex mixtures
Zdroj:	Proceedings / Indian Academy of Sciences. 87:243-246
ISSN:	0370-0097
DOI:	10.1007/bf03178987
Popis:	The occurrence of facultative symbiotrophic N2-fixing associations in three rice soils of India is reported. Considerable variation in N2-fixing efficiency of these associations was noticed among the soil types studied. Associations from rice straw-amended alluvial soil under both flooded and non-flooded conditions exhibited higher N.-fixing efficiency than those from unamended soils of both water regimes. Despite high salinity and acidity an acid sulphate soil harboured N.-fixing symbiotrophic organisms with appreciable efficiency. Application of rice straw to the soil under both flooded and non-flooded conditions stimulated N2-fixation in alluvial, laterite and acid sulphate saline soils. These observations suggested the significant contribution of these associations to the nitrogen economy of different soil types.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d3989e9ccd4320c8a02017d008ad88d0 https://doi.org/10.1007/bf03178987 Zobrazit plný text záznamu Full text from SpringerLink