Effect of Different Levels of Nitrogen Alone and in Combination with Constant Doses of Phospohorus and Potassium on Grwoth and Yield of Okra (Abelmoschus esculentus L.) Cv. T-13 under the Agro-climatic Conditions of Mingora, Swat

Humayun Khan, Mazullah Khan, Khalid Rasul, Abdul Majeed and Fayaz Ahmad Safi

Pakistan Journal of Biological Sciences 3 ( 12 ): 2101 - 2104 , 2000