Kaynaklar

Kaynaklar

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46. Davis, D.R., Epp, M.D. & Riordan, H.D. (2004). Changes in USDA food composition data for 43 garden crops, 1950 to 1999. J. Am. Coll. Nutr. 23(6): 669–682.
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Görseller: Toprak katmanı dokuları, iki avuç, gübre, tuz, erozyonlu yamaç ve Bacillus görselleri yapay zekâ ile üretilmiş canlandırmalardır. Gerçek fotoğraflar Wikimedia Commons'tan: USDA (kamu malı), Cjrufe (CC0; toprak profili), snarlingbunny (CC0), USFS Region 5 (kamu malı), pfly (CC BY-SA 2.0; solucan), J. Schlaghecken (CC BY-SA 4.0; kök tüyleri), D. Blenkinsopp (CC BY-SA 2.0; kireçli toprak), Lynn Betts / USDA NRCS (kamu malı; oyulmuş tarla).