According to Comparative Investigation of Concentrations of Major and Trace Elements in Organic and Conventional Danish Agricultural Crops. (Allium cepa Hysam). They analyzed different chemical properties and they found 2 different cultives of onion fruit if they are grown in ecological or in conventional conditions: Ca (Calcium): Showed 142mg/kg ± 55,6 in organic onions and 197mg/kg ± 84,1 in conventional onions. The autors p < 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. Fe (Iron): Showed 3,2mg/kg ± 0,746 in organic onions and 2,65mg/kg ± 0,798 in conventional onions. The autor determinate that p > 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. K (Potassium): Showed 1830mg/kg ± 1180 in organic onions and 1640mg/kg ± 935 in conventional onions. The autor determinate that p > 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. Mg (Magnesium): Showed 109mg/kg ± 18,2 in organic onions and 102mg/kg ± 16,9 in conventional onions. The autor determinate that p < 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. Na (Sodium): Showed 159mg/kg ± 54,4 in organic onions and 214mg/kg ± 111 in conventional onions. The autor determinate that p > 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. P (Phosphorus): Showed 421mg/kg ± 80,4 i organic onions and 439mg/kg ± 74,7 in conventional onions. The autor determinate that p > 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. S (Sulfur): Showed 1210mg/kg ± 542 in organic onions and 1230mg/kg ± 558 in conventional onions. The autor determinate that p > 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. Si (Silicon): Showed 8,99mg/kg ± 3,39 in organic onions and 11mg/kg ± 7,11 in conventional onions. The autor determinate that p > 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. Zn (Zinc): Showed 3,5mg/kg ± 1,16 in organic onions and 3,36mg/kg ± 1,42 in conventional onions. The autor determinate that p > 0,05 and in I calculate student T test is knowing N=10. Using the previous data in the website Graphpad Student T test online. The author tell us that all of these chemical compositions are p < 0,05 and we can see that this afirmation is incorrect because we correct it whit the T Stundent table.
Comparative Investigation of Concentrations of Major and Trace Elements in Organic and Conventional Danish Agricultural Crops. (Allium cepa Hysam 2022)