Madras Agricultural Journal
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Studies on the Causes of Poor Nodulation in Groundnut in Soils of Tamil Nadu

Abstract

                                One of the reasons for poor nodulation in leguminous crops, is the absence of proper Rhizobia in the soil (Masefield, 1958). Physical factors like temperature, moisture content and aeration and chemical factors such as presence of adequate amounts of lime, phosphorus and potash as well as trace elements have also been associated with proper nodulation in legumes (Van Schrevan, 1958). Extremes of pH, presence of phages and nematodes have also been reported to affect nodulated legumes.

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