Response of Wheat to Phosphorus, Zinc and Iron in Loamy Sand Soils

A field experiment entitled ¿Response of wheat (Triticum aestivum L.) to phosphorus, zinc and iron in Loamy Sand Soils of Western Rajasthan¿ was conducted on loamy sand soil at Agronomy Farm, College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, Bikaner during rabi seasons of 2009-10 and 2010-11. The experiment comprising 4 levels of phosphorus (0, 20, 40 and 60 kg ha-1) and 3 levels of zinc (0, 3 and 6 kg ha-1) in main plots and 3 levels of iron (0, 3 and 6 kg ha-1) in sub plots. A total of 36 treatment combinations were evaluated in split plot design with three replications. The soil of the experimental field was loamy sand in texture, with low to medium fertility status (i.e. 90.1 and 95.0 kg N, 14.2 and 15.9 kg P2O5, 160.4 and 157.7 kg K2O, 0.34 and 0.38 mg kg-1 Zn and 2.90 and 2.98 mg kg-1 Fe) with pH 8.43 and 8.45 during 2009-10 and 2010-11. Wheat variety Raj-3077 was sown at 22.5 cm row spacing using seed rate of 120 kg ha-1.