Vol. 11, Issue 6 (2022)

Author(s):
Bholeshankar Paikara, Dr. AK Paliwal, Dr. RN Singh and Dr. DK Gupta

Abstract:
This experiment was conducted at the research farm of Raj Mohini Devi College of Agriculture and Research station, Ambikapur (Chhattisgarh) to study the response of Rhizobium strains on Horse gram (Dolichos biflorus L.) in Northern hills region of Chhattisgarh during kharif 2017. The variety Chhattisgarh kulthi-2 was used as the test crop. The trial was carried out in Randomized Block Design (RBD) with three replications, using eight treatments comprised of four levels of Nitrogen (0, 50, 75 and 100% of GRD @ 20 kg ha^-1) and full dose of phosphorus and potassium followed all treatments. Three strain of Rhizobium (Rhizobium strain-1, Rhizobium strain-2 and Rhizobium strain-3) combined with two level of N (50 and 75%) except 100% GRD and control. Result revealed that growth parameters i.e. plant height (cm), number of branches plant^-1, number of nodules plant^-1, fresh and dry weight plant^-1 at 30, 45 and 60 days after sowing, yield attributing characters-number of pods plant^-1 and number of seeds pod^-1, nitrogen content in grain (4.23%) and straw (0.88%), uptake by grain (34.47 kg ha^-1) and straw (9.55 kg ha^-1), protein content (26.43%) under the treatment 75% N of GRD (15 kg ha^-1) and full dose of P₂O₅ (40 kg ha^-1), K₂O (30 kg ha^-1) + Rhizobium strain-2 (T₇) which finally showed the highest grain production and straw yield of horse gram (8.15 and 10.86 q ha^-1, respectively). While, the highest agronomical nitrogen use efficiency (25.1 kg grain yield kg^-1 applied N) was registered under the treatment 50% N of GRD and full dose of P, K + Rhizobium strain-2 (T₃).