Effect of cobalt, Rhizobium and phosphobacterium inoculations on growth attributes, yield, quality and nutrient uptake of summer groundnut (Arachis hypogaea Linn)

Manisha Basu; Avishek Datta; Basu, T.K.

Annals of Agricultural Research 26(2): 209-213


Accession: 012780938

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A field experiment was carried out on the neutral soil of Student's Instructional Farm, Barajaguli, Nadia, West Bengal, India, with groundnut during pre-kharif season (February-June) of 2001. It revealed that in increasing plant height (cm), number of branches per plant, leaf area index (LAI), dry matter accumulation (gm per m2) and number and dry weight (gm) of nodules per plant at different dates of observation, Rhizobium was more effective than phosphobacterium. Rhizobium was more effective than phosphobacterium for higher pod yield, shelling percent, oil and protein content. Regarding nutrient concentration, Rhizobium had better performance in N and K concentration but phosphobacterium gave better result in P concentration though the uptake of all the three nutrients was higher in Rhizobium inoculation. Cobalt at 0.21 kg per ha gave the best result in all the abovementioned parameters.