Pakistan Journal of Nutrition1680-51941994-7984Asian Network for Scientific Information10.3923/pjn.2013.1070.1074Ullah SadozaiGhazanfar FarhadMuhammad KhanMuhammad Ayyaz KhanEjaz Ahmad NiamatullahMuhammad BalochMuhammad Safdar KhakwaniAbdul Aziz WasimKashif 1220131212The experiment was conducted to study the effect of various phosphorous levels
on the yield and yield components of sunflower variety Hysun-33
at the Agronomic Research Area, Faculty of Agriculture, Gomal University, Dera
Ismail Khan during the year 2010. The phosphorous levels studied were 0 (N :P2O5:
K2O), 0 (P2O5), 10, 20, 30, 40, 50, 60 P2O5 Kg/ha. The results showed significant
effect of P2O5 @ 50 kg/ha and 60 kg/ha as compare to lower doses of phosphorous.
All varying levels of phosphorous affected the head diameter, number of seeds
per head, 1000-seeds weight, achenes yield and achenes oil content
but significant positive effect was observed where P2O5 @ 60 kg/ha N @ 50 kg/ha
and K2O 15 kg/ha was applied. However, number of plants, remained non-significant.
It is, therefore, recommended to apply phosphorous @ 60 kg/ha for obtaining
higher yield of sunflower.]]>AOAC.,199516th Edn.,Agrawal, M.M., B.V. Singh and C. Kumar,2000Helianthus annuus).]]>45184187Ali, H., H.A. Randhawa and M. Yousaf,2004Helianthus annuus L.) as influenced by planting dates and nitrogen application.]]>6410412Amanullah and M.W. Khan,201020674680Anonymous,20092009Anonymous,20102010Arif, M., K.M. Kakar and G.M. Kakar,2003276366Aslam, M., M.A. Khan, I.U. Awan, E.A. Khan, A.A. Khan and G. Jilani,201110640646Aulakh, M.S. and N.S. Pasricha,199623247252Bhagat, G.J., A. Hamid, S.P. Bonde, M.D. Giri and M. Sajid,2005Helianthus annuus L.) as influenced by irrigation and sulphur levels.]]>303036Brady, N.C. and R.R. Weil,20022002Brennan, R.F. and M.D.A. Bolland,20044410251029Cheema, M.A., M.A. Malik, A. Hussain, S.H. Shah and A.M.A. Basra,2001Brassica napus L.).]]>186103110Fagundes, J.D., G. Santiago, A.M. Mello, R.A. Belle and N.A. Streck,2007Helianthus annuus L.): Sources and rates of nitrogen.]]>37987993Gahoonia, T.S., F. Asmar, H. Giese, G. Gisel-Nielsen and N.E. Nielsen,200012281289Khalil, I.A. and A. Jan,20103rd Edn.,Pages: 250Pages: 250Kumar, S., A.K. Singh and A.K. Vyas,1995Helianthus annuus L.).]]>16513514Kumaresn, M.A., V.S. Shanmugasundaram and T.N. Balasubramanian,2001Zea mays)-sunflower (Helianthus annuus)-cowpea (Vigna unguiculata) fodder cropping system.]]>46404409Lickfett, T., B. Matthaus, L. Velasco and C. Mollers,199911293299Malik, M.A., M.F. Saleem, M. Sana and A. Rehman,2004Helianthus annuus L.).]]>6240242McKenzie, R.H., E. Bremer, L. Kryzanowski, A.B. Middleton and E.D. Solberg et al.,200383431441Muralidharudu, Y., I.Y.L.N. Murthy, K.P.C. Reddy, B.N. Reddy and H.T. Chandranath,2003Helianthus annuus L.) to phosphorus application in vertisols.]]>26147154Nandhagopal, A., K.S. Subramanian and A. Opalan,1995828083Nawaz, N., G. Sarwar, M. Yousaf, T. Naseeb, A. Ahmad and M.J. Shah,20032561562Sadiq, S.A., M. Shahid, A. Jan and S. Nooruddin,20003338339Saleem, M.F. and M.A. Malik,2004Helianthus annuus L.).]]>42261270Sarkar, R.K., A. Chakraborty and B. Bala,199540657659Shaheen, A., M.A. Naeem, G. Jilani and M. Shafiq,201114196201Shenoy, V.V. and G.M. Kalagudi,200523501513Singh, J., K.P. Singh and S.S. Yadav,1998Helianthus annuus L.) as influenced by azotobacter, farmyard manure, nitrogen and phosphorus.]]>43474479Steel, R., J. Torrie and D. Dickey,19993rd Edn.,Turk, M.A. and A.M. Tawaha,2002Vicia faba L. Minor) in the absence of moisture stress.]]>6171178Sawan, Z.M., S.A. Hafez, A.E. Basyony and A.E.E.R. Alkassas,200626674