Effects of mineral nitrogen and Bradyrhizobium inoculation on growth and iron nutrition of groundnut

Sahrawat, K L and Anjaiah, V and Nambiar, P T C (1990) Effects of mineral nitrogen and Bradyrhizobium inoculation on growth and iron nutrition of groundnut. Fertilizer Research, 24 (1). pp. 47-52.

[img]
Preview
PDF
Download (703kB) | Preview

Abstract

Experiments were conducted in a glasshouse to determine the effects of the mineral N supplied as ammonium nitrate andBradyrhizobium inoculation on the growth and iron nutrition of nodulating and non-nodulating groundnut (Arachis hypogaea L.) lines. In a sterilized sand-vermiculite medium supplied with N-free nutrient solution (pH 7.0), inoculation of nodulating groundnut withBradyrhizobium strain NC 43.3 enhanced dry matter production and O-phenanthroline extractable iron and N contents of the plants. The supply of mineral N at a rate of 100 mg N L–1 (as NH4NO3) through deionized water (pH 8.5) induced iron chlorosis symptoms in the nodulating groundnuts grown in Vertisols, but these symptoms were not observed at higher N levels (200–400 mg N L–1). The induced chlorosis was only partially corrected by inoculation withBradyrhizobium strains NC 92 and NC 43.3. The iron deficiency chlorosis was, however, corrected by application of higher rates of ammonium nitrate.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Mandate crops > Groundnut
Depositing User: Siva Shankar
Date Deposited: 10 Oct 2011 08:49
Last Modified: 10 Oct 2011 08:49
URI: http://oar.icrisat.org/id/eprint/2173
Official URL: http://dx.doi.org/10.1007/BF01073145
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
Links:
View Statistics

Actions (login required)

View Item View Item