Muhammad Ali Khan, Shahida N. Khokhar, Rizwan Ahmed and Aftab Afzal
Abstract
A wheat (GA 2002) field inoculation trial was carried out to evaluate an indigenous formulation comprising of Rhizobium( PAC-19/1) Azospirillum (ZS1) and P-solubilizing Pseudomonas (Psm-na) in single, dual and tripartite combination as supplement to chemical fertilizers. The effect on growth and yield indices was compared with full recommended dose of Nitrogen (N) and Phosphorus (P) at NARC experimental field area during 2006-07. The bacteria have previously been studied in laboratory. The treatments were, uninoculated control with starter N and P; Rhizobium with half N and full P; Azospirillum with half N and full P; Pseudomonas with full N and half P; Rhizobium+ Azospirillum with half N and half P; Azospirillum + Pseudomonas with half N and half P; Rhizobium + Azospirillum + Pseudomonas with half N and half P; Full (recommended) N and P (100kg urea-N & 80kg P2 O5-P ha-1 ). Recommended dose of K (@ 75kg ha-1was applied to all the treatments. All the inoculated treatments except Rhizobium+ Azospirillum + ½ N + ½ P, produced significantly higher grain yield than un-inoculated control. Tripartite inoculation in the presence of half of recommended dose of N and P, brought 27% increase in grain yield over the uninoculated control, and it did not differ significantly from that where full dose of recommended N and P was given. The tripartite inoculation saved 50 % N and P without compromising on grain yield.
Muhammad Ali Khan, Shahida N. Khokhar, Rizwan Ahmed and Aftab Afzal. (2009) WHEAT GROWTH AND YIELD IN RESPONSE TO COINOCULATION OF RHIZOBIUM, AZOSPIRILLUM AND PSEUDOMONAS UNDER RAINFED CONDITIONS, , Volume 6, Issue 4.
