The nitrogen content of potato (Solanum tuberosum L.) tubers in relation to nitrogen application—the effect on amino acid composition and yields

Effect of nitrogen application rate on t

Effect of nitrogen application rate on the content and composition of oil, essential oil and minerals in black cumin (Nigella sativa L.) seeds

✍ M Ashraf; Qasim Ali; Zafar Iqbal 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 120 KB 👁 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. Sixty‐three‐day‐old plants were supplied with varying levels of N, i.e., 0, 30, 60, and 90 kg