• N.RAMESH
• S.MANIMARAN

ABSTRACT Field investigations were carried out at the Annamalai University Experimental Farm, Department of Agronomy, Annamalai Nagar to study effect of nutrient management in irrigated black gram during 2015 (February to April). The experiment was laid out in Randomized Block Design (RBD) with three replications. There were altogether nine treatments viz., T1 – 100% Recommended dose of fertilizers (RDF) 25:50:0 NPK kg ha-1, T2 – 100% RDF + Rhizobium Leguminosarum by Phaseoli (RHL). T3 – 100% RDF + Pseudomonas fluorescens (PSF), T4 – 100% RDF + Enriched farm yard manure (EFYM), T5 - 100% + Neem cake, T6 – 100% RDF + RHL + PSF, T7 – 100% RDF + EFYM + RHL + PSF, T8 – 100% RDF + Neem cake + RHL + PSF,T9 – 100% RDF + EFYM + Neem cake + RHL + PSF. The combined application of organic, inorganic and bio fertilizers significantly influenced on the plant growth and yield components of black gram. Among the treatments, application of 100 % RDF + EFYM + Neem cake + RHL+ PSF(T9) had favorably influenced the growth components such as plant height, number of branches plant-1, leaf area index, and dry matter production and yield components such as number of pods plant-1,number of seeds pod-1 and test weight. This was followed by 100 % RDF + EFYM + RHL + PSF(T7). The treatments 100% RDF + PSF (T3) and 100% RDF + RHL (T2) were on par. 100 % RDF (25:50:0kg) NPK treatment (T1) recorded lowest values with above growth and yield attributes. The study revealed that application of 100 % RDF + EFYM + Neem cake + RHL+ PSF (T9). Significantly registered the highest seed yield of 1286 kg ha-1. 100 % RDF (25:50:0kg) NPK treatment (T1) recorded lowest seed yield of 852 kg ha-1. The uptake of N, P2O5 and K2O were found to be significantly higher with 100 % RDF + EFYM + Neem cake + RHL+ PSF (T9). The least uptake of N, P2O5, and K2O were noticed under 100 % RDF (25:50:0kg) NPK treatment (T1).The highest net return and benefit cost ratio were obtained with application of 100 % RDF + EFYM + Neem cake + RHL+ PSF (T9). It accounted the highest net income of Rs. 40390 and benefit cost ratio of (3.15). The least net income (Rs. 22330). And benefit cost ratio (2.32) were obtained under 100 % RDF (25:50:0kg) NPK treatment (T1).

Rhizobium Leguminosarum by Phaseoli, Pseudomonas fluorescens,neem cake and Black gram

"EFFECT OF RHIZOBIUM LEGUMINOSARUM BY PHASEOLI, PSEUDOMONAS FLUORESCENS, ENRICHED FARM YARD MANURE AND NEEM CAKE IN IRRIGATED BLACK GRAM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.721-730, January-2019, Available :http://www.jetir.org/papers/JETIR1901795.pdf

"EFFECT OF RHIZOBIUM LEGUMINOSARUM BY PHASEOLI, PSEUDOMONAS FLUORESCENS, ENRICHED FARM YARD MANURE AND NEEM CAKE IN IRRIGATED BLACK GRAM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp721-730, January-2019, Available at : http://www.jetir.org/papers/JETIR1901795.pdf