**Integrated Use of Phosphorus, Animal Manures and Biofertilizers Improve Maize Productivity under Semiarid Condition**

Dr. Amanullah and Shah Khalid

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/62388

#### **Abstract**

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Phosphorus unavailability and lack of organic matter in the soils under semiarid condition are the major reasons for low crop productivity. Field trial was conducted to investigate the impact of different animal manures (poultry, cattle, and sheep manures) and phosphorus levels (40, 80, 120, and 160 kg P2O5 ha−1) on yield and yield components of hybrid maize (CS-200) with (+) and without (−) phosphate-solubilizing bacteria (PSB) seed treatment at the Agronomy Research Farm of The University of Agriculture Peshawar, during summer 2014. Our results confirmed that the application of poultry manure significantly (P ≤ 0.05) increased yield and yield components of maize. Phosphorus applied at the rate of 120 kg P2O5 ha−1 increased ear length, grains ear−1, and shelling percentage, while the highest rate of 160 kg P ha−1 increased grains weight, grain yield, and harvest index. Maize seeds treated with PSB (+) before sowing had produced higher yield and yield components than untreated seeds (−). We concluded from this study that com‐ bined application of 160 kg P2O5 ha−1 + poultry manure and seed treatment with PSB (+) could improve crop productivity and profitability under semiarid condition.

**Keywords:** *Zea mays* L, hybrid, yield components, phosphate-solubilizing bacteria, an‐ imal manures, phosphorus levels, semiarid climate
