Copper and zinc competitive adsorption in schistic and granitic acid soils
1998
Mesquita, M.E. (Estacaio Agronomica Nacional, Oeiras (Portugal). Dept. de Pedologia)
إنجليزي. The behaviour in adsorption-desorption reaction of copper and zinc was studied in two acid soils, a schistic and a granitic soil. Cu and Zn were added to soil samples by Cu, Zn or Cu + Zn solutions. Adsorption data fitted the Langmuir type isotherms. More Cu than Zn was adsorbed, mainly on specific sites and Zn on non specific sites. Cu and Zn adsorption was depressed by mutual competition to the adsorption sites and this competition was studied by distribution coefficients and the competitive Langmuir equation
اظهر المزيد [+] اقل [-]إيطالي. [In due suoli acidi, un suolo scistico e uno granitico, e' stato studiato il comportamento in assorbimento-rilascio di rame e zinco. Cu e Zn venivano aggiunti ai campioni di terreno da soluzioni di Cu, Zn e Cu + Zn. I dati di assorbimento coincidevano con le isoterme di tipo Langmuir. Veniva assorbito piu' Cu di Zn, soprattutto su siti specifici e Zn su siti non specifici. L'assorbimento di Cu e Zn veniva ridotto dalla competizione reciproca nei siti di assorbimento e questa competizione e' stata studiata mediante i coefficienti di distribuzione e l'equazione competitiva di Langmuir]
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
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