Journal Article 673 Research Support, Non-U.S. Gov't 140 Physiology 127 physiology 112 Review 95 Biology 72 059QF0KO0R 52 mehr ... Water 52 Soil 49 Diseases 41 climate change 41 Plant Proteins 40 Antioxidants 39 Research Support, U.S. Gov't, Non-P.H.S. 37 Developing Countries 28 Family Planning 27 photosynthesis 27 Research Methodology 25 1406-65-1 24 Chlorophyll 24 Nitrogen 24 7440-44-0 23 Carbon 23 Health 23 N762921K75 23 Contraception 22 Demographic Factors 22 Population 22 142M471B3J 20 Carbon Dioxide 20 weniger ...