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 How is this determined?
How is this determined?
| soil 47 grassland 28 water 25 nitrogen 16 corn 13 precipitation 12 beef 10 Soybean 8 Digestion 7 Nutrients 7 climate change 6 winter 6 Milk 5 summer 5 wheat 5 Glucose 5 Atrazine 5 ethanol 4 Nitrate 4 Sugar 4 Metolachlor 4 crops 4 CO2 4 Legume 4 soil moisture 4 Seeds 4 | Clover 3 drought 3 eggs 3 Phosphorus 3 environment 3 Fat 3 agriculture 3 herbicides 3 pregnancy 3 algae 3 sodium 3 sodium nitrate 3 global warming 3 Egg 3 Benomyl 3 Carbon dioxide 3 irrigation 3 sunflower seeds 3 Pea 3 Toxicity 3 pesticides 3 Petroleum 3 Lactose 3 Plague 3 carbon flux 3 |