Effect of nitrogen application rate on t
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M Ashraf; Qasim Ali; Zafar Iqbal
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Article
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2006
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John Wiley and Sons
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English
β 120 KB
π 2 views
## Abstract A field experiment was conducted to study the effect of nitrogen fertility level on the content and composition of oil, essential oil and minerals in black cumin (__Nigella sativa__ L.) seeds. Sixtyβthreeβdayβold plants were supplied with varying levels of N, i.e., 0, 30, 60, and 90 kg