1. Amanullah, Khalid S. Integrated use of phosphorus, animal manures and biofertilizers improve maize productivity under semiarid condition. In: Larramendy ML, Soloneski S, editors. Organic Fertilizers–From Basic Concepts to Applied Outcomes. Rijeka, Croatia: InTech; 2016. pp. 137-155
2. Amanullah, Iqbal A, Irfanullah, Hidayat Z. Potassium management for improving growth and grain yield of maize (Zea mays L.) under moisture stress condition. Scientific Reports. 2016a;6:34627. DOI: 10.1038/srep34627
3. Amanullah, Khan F, Muhammad H, Jan AU, Ali G. Land equivalent ratio, growth, yield and yield components response of mono-cropped vs. inter-cropped common bean and maize with and without compost application. Agriculture and Biology Journal of North America. 2016b;7(2):40-49
4. Amanullah, Saleem A, Iqbal A, Fahad S. Foliar phosphorus and zinc application improve growth and productivity of maize (Zea mays L.) under moisture stress conditions in semi-arid climates. Journal of Microbial and Biochemical Technology. 2016c;8:433-439. DOI: 10.4172/1948-5948.1000321
5. Amanullah, Iqbal A, Ali A, Fahad S, Parmar B. Nitrogen source and rate management improve maize productivity of smallholders under semiarid climates. Frontiers in Plant Science. 2016d;7:1773. DOI: 10.3389/fpls.2016.01773