Effect of Phosphorus and Bio-fertilizers on Growth and Yield of Urdbean [Vigna mungo (L.) Hepper]
Maya Yadav
Research Scholar, Department of Agronomy, S. K. N. College of Agriculture, Sri Karan Narendra Agriculture University, Jobner- 303329, Rajasthan, India.
S. S. Yadav
Department of Agronomy, S. K. N. College of Agriculture, Sri Karan Narendra Agriculture University, Jobner- 303329, Rajasthan, India.
Sunil Kumar *
Research Scholar, Department of Agronomy, IAS, Banaras Hindu University, Varanasi-221 005, India.
Taramani Yadav
Research Scholar, National Dairy Research Institute, Kernal, India.
Hansa Kumari Yadav
Department of Agronomy, S. K. N. College of Agriculture, Sri Karan Narendra Agriculture University, Jobner- 303329, Rajasthan, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was conducted during kharif season of 2014 on loamy sand soil to study the effect of phosphorus levels and bio-fertilizers on growth and yield of urdbean. Experiment consisted of four treatments of phosphorus levels (0, 20, 40 and 60 kg/ha) and four treatments of bio-fertilizers (control, PSB, VAM and PSB + VAM) thereby making sixteen treatment combinations tested in randomized block design with three replications. Result indicated that application of phosphorus up to 40 kg/ha significantly increased the growth and yield determining characters viz., plant height, number of branches/plant, dry matter accumulation/m row length, number and weight of root nodules/plant, CGR, RGR, number of pods/plant, grains/pod, test weight, grain yield, straw yield, biological yield, harvest index and net returns and its remain at par with 60 kg/ha. Seed and soil inoculation with PSB + VAM significantly enhanced the growth and yield attributing characters over PSB, VAM and control.
Keywords: Phosphorus, phosphorus solublizing bacteria, vasicular arboscular mycorrhiza and yield.