Effect of sampling date on chemical indices of the mineralizable nitrogen in soil

Fonseca, Telmo; Arrobas, Margarida; Parada, Maria João; Rodrigues, M.A.

http://hdl.handle.net/10198/3016

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Abstract(s)

In the 1960s and 1970s there was great emphasis on selecting simple laboratory methods to estimate the potentially available soil N that could be routinely used as a method for the N recommendations systems (Keeney and Breniner, 1966; Stanford and Smith, 1976). Many chemical extractants were investigated (acids alkali, salts, water…) as possible tools for assessing how much N may be mineralized, varying the concentration of the extractant, temperature and time of extractions.

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http://hdl.handle.net/10198/3016

Citation

Fonseca, Telmo; Arrobas, Margarida; Parada, Maria; Rodrigues, Manuel (2010). Effect of sampling date on chemical indices of the mineralizable nitrogen in soil. In AGRO2010 the XIth ESA Congress, Montpellier