%0 Journal Article
%T Nitrogen and phosphorus management strategy for better growth and yield of sunflower (Helianthus annuus L.) hybrid
%A Amjed Ali and Ijaz Rasool Noorka
%J Soil & Environment
%D 2013
%I Soil Science Society of Pakistan (SSSP)
%X This study conducted during autumn season, 2010 investigated the effect of nitrogen and phosphorus on sunflower hybrid Hysun-33. The experiment was planned in randomized complete block design (factorial arrangement), with three replication, having net plot size of 3 x 7 m. The experiment comprised of 9 treatments, three levels of nitrogen and phosphorus, viz., 85, 135, 185 kg N ha-1, and 50, 75, 85 kg P ha-1. Nitrogen affected all estimated characters significantly, except plant population, while, phosphorus did not show significant effect on plant population and plant height. All other parameters, as leaf area plant-1, head diameter, 1000- achene weight and achene yield were affected significantly by different nitrogen and phosphorus levels. Interactive effects of nitrogen and phosphorus were significant in all these cases. The highest achene¡¯s yield (2584 kg ha-1) was obtained with the application of 135-75 kg NP ha-1as against the lowest (1491kg ha-1) at 85-50 kg NP ha-1.
%K Growth
%K hybrid
%K leaf area
%K sunflower
%K yield
%U http://www.se.org.pk/File-Download.aspx?publishedid=212