RT Journal T1 Optimizing nitrogen levels combined with gibberellic acid for enhanced yield, photosynthetic attributes, enzyme activities, and artemisinin content of Artemisia annua A1 Tariq AFTAB, M. Masroor A. KHAN, Mohd. IDREES, M. NAEEM, MOINUDDIN PB Front. Agric. China FD 2011-03-05 YR 0 JF Frontiers of Agriculture in China JO Front. Agric. China VO IS SP 51 DO 10.1007/s11703-011-1065-7 K1 Artemisia annua L.;artemisinin;gibberellic acid;nitrogen;photosynthesis LK {https://academic.hep.com.cn/fag/EN/article/article_1807.shtml}