Author(s):

Nitish Kumar Jena, Ajoy Kumar Pattnaik, Premananda Mahapatra, Alok Nandi, Janmejaya Panda and Asim Abhishek Swain

Abstract: The present experiment entitled “Effect of chemical fertilizer, rhizobium and micronutrients on nodulation of French bean (Phaseolus vulgaris L.)” was carried out during Rabi, 2018-19 at Instructional Farm-II of Institute of Agricultural Sciences, Bhubaneswar. The recommended dose of fertilizer (RDF) used for French bean was 50:75:75 NPK kg ha-1 along with FYM @ 15 ton ha-1. The chemical fertilizers were applied in three levels i.e. 50 %, 100 % and 150 % of the RDF with various combinations of rhizobium culture and micronutrients. The experiment consisted of twelve treatments in various combinations of different levels of fertilizer with or without rhizobium culture (30 g kg-1 of seed) and micronutrients (0.1 %). The results obtained from the present investigation indicated that the treatment receiving 50:75:75 NPK kgha-1 (100 % RDF) along with FYM @ 15 t ha-1, rhizobium culture (30 g kg-1 of seed) and micronutrients (0.1%) recorded significantly maximum number of nodules in T11 (99.07), which was at par with T12 (90.23) receiving150 % of RDF with Rhizobium culture and micronutrient. However, least number of nodules was recorded in T1 (43.30) receiving 50 % of the recommended dose of fertilizer only without rhizobium and micronutrient. Thus, it may be suggested that RDF with rhizobium culture and micronutrients application increases number of nodules in case of French bean.

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