Organic lettuces. Farmer tending to a field of young organically-grown lettuces (Lactuca sativa). Organic farming is that which excludes the use of artificial fertilisers,pesticides and genetically modified (GM) crops. This is done to ensure the food is not chemically contaminated in any way,and that the immediate environment is not harmed. Lettuces are a good source of vitamin C and the minerals potassium and iron | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Fermariello, Mauro |
Bildgröße: | 2480 px × 3715 px |
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