Table of Contents
ISRN Agronomy
Volume 2012, Article ID 234656, 9 pages
http://dx.doi.org/10.5402/2012/234656
Research Article

Influence of Phosphorus Levels and Phosphorus Solubilizing Fungi on Yield and Nutrient Uptake by Wheat under Sub-Humid Region of Rajasthan, India

Department of Agricultural Chemistry and Soil Science, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur 313001, India

Received 21 October 2011; Accepted 30 November 2011

Academic Editors: W. J. Rogers, C. Tsadilas, and W. P. Williams

Copyright © 2012 Amita Sharma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of the present study was to assess the influence of phosphorus levels and phosphorus solubilizing fungi on yield and nutrient uptake by wheat. The dry matter production by wheat at tillering, ear emergence, and harvest was significantly higher with 90 kg P2O5 ha−1 and was at par with 60 kg P2O5 ha−1. Application of Aspergillus awamori gave the highest dry matter accumulation at tillering, ear emergence, and harvest stage of crop growth. Increasing levels of phosphorus increased the grain and straw yield significantly up to 60 kg P2O5 ha−1 of wheat crop. However, the maximum grain and straw yield were obtained at 90 kg P2O5 ha−1, which was at par with 60 kg P2O5 ha−1. The combined application of 60 kg P2O5 ha−1 with A. awamori recorded significantly higher grain and straw yield. Increasing level of P application (0 to 90 kg P2O5 ha−1) and inoculation with A. awamori and A. niger significantly increased uptake of N, P, and K in wheat at all stages of crop growth. The maximum nitrogen, phosphorus, and potassium uptake was recorded at harvest (grain and straw) followed by ear emergence and tillering when seeds were inoculated with Aspergillus awamori.