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Field experiment was conducted to investigate effect of co-inoculants Rhizophos in liquid formulation on the agronomic traits of black gram (Vigna mungo L.). The treatments such as RDF (Recommended dose of fertilizer) + rhizophos in liquid formulation (T5), RDF + phosphobacteria in liquid formulation (T4), RDF + Rhizobium leguminosarum (TNAU14) in liquid formulation (T3), RDF (T2) and absolute control (T1) were imposed in a Randomized Block Design with four replication each. Seeds were treated accordingly with the treatments and foliar application was done at 1ml.L-1 on 30, 45 and 60 DAS. Among the treatments, foliar spray of Rhizophos @ 1 ml.L-1 exhibited profound effect in improving the growth and yield attributes. The result demonstrates that RDF + rhizophos in liquid formulation recorded the highest yield of (750 kg.ha-1) over the control (483 kg.ha-1). The results showed that, application of co-inoculant rhizophos through seed treatment and foliar spray significantly influenced the agronomics traits and yield of black gram over individual treatment and recommended dosage alone.
Shalini et al. (Sat,) studied this question.