Evaluation of Nitrogen and Potassium Uptake and Efficiency of Two Rice Varieties Cultivated on an Acid Soil

Shajarutulwardah Mohd Yusob, Osumanu Haruna Ahmed, Wan Asrina Wan Yahaya and Nik Muhamad Ab. Majid

American Journal of Agricultural and Biological Sciences 2 ( 3 ): 130 - 135 , 2007