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Muhammad Amjad, Muhammad Akbar Anjum and Habib Ullah Malik, 1999. Effect of Nitrogen and Phosphorus on Seed Production of Three Onion (AIlium cepa L.) Cultivars. Pakistan Journal of Biological Sciences, 2: 752-754.
DOI: 10.3923/pjbs.1999.752.754
URL: https://scialert.net/abstract/?doi=pjbs.1999.752.754
DOI: 10.3923/pjbs.1999.752.754
URL: https://scialert.net/abstract/?doi=pjbs.1999.752.754