Response of maize to liming and ameliorative phosphorus fertilization.
Received 21 February 2013 Revised form 25 February 2013 Accepted 27 February 2013 Available online 25 March 2013 The field experiment of liming (0 and 10 t ha-1 of powdered hydrated lime) and phosphorus fertilization (monoammonium phosphate or MAP: 12% N + 52% P2O5) were conducted on Mahovljani acid soil in November 2008. The rates of P on basic fertilization were as follows: 0, 500, 1000 and 1500 kg P2O5 ha-1. Basic plots of liming and P fertilization were 640 m2 and 40 m2, respectively. The average yield of maize grain was 8.03 t ha-1. The yield of maize was increased by liming 32% (3-year averages: 6.90 and 9.12 t ha-1, for the control and liming, respectively) with differences of liming effects among the years by 18% to 47%. The differences of yields were nonn-significant among three rates of P applications, while increases of yields were 5% (2009), 6 % (2010) and 18% (2011) respectively by comparing these treatments with the control. Protein and oil contents were independent on liming and P fertilization in maize grain, while effects of these treatments on starch contents found only in 2009 growing season: as affected by liming starch contents were increased by 1.3%, while P fertilization resulted by decreases of starch contents by 0.9%. 2013 KnowledgesPublisher Ltd. All rights reserved.