26 research outputs found
Testowa metoda oceny podatnosci na utlenianie materii organicznej gleb
No full textPrzedstawiono propozycję metody oznaczania podatności materii organicznej gleb na utlenianie w środowisku kwaśnym. Metoda polega na określeniu ilości węgla próbki ulegającej w ciągu 2 godz. utlenieniu 0.005M roztworem KMnO₄ o pH = 2.5-2.6.A method of determination of soil organic matter susceptibility to oxidation at acid reaction has been described. Susceptibility to oxidation is expressed as amount of soil carbon oxidable during 2 hours with 0.005M KMnO₄, at pH = 2.5-2.6
Effects of different wheat straw returning modes on soil organic carbon sequestration in a rice–wheat rotation
No full text
Straw mulching with fertilizer nitrogen: An approach for improving crop yield, soil nutrients and enzyme activities
No full text
Disponibilidade de nitrogênio pela oxidação do carbono lábil com permanganato de potássio
No full text
