Influence of moisture levels and liming on N-transformation in an unfertilized and N-fertilized acid soil [in West Bengal]

abonos nitrogenados acid soils analytical methods azote azoto bengala occidental bengala occidentale bengale occidental calcitazione chaulage contenido de agua en el suelo contenuto d'acqua del suolo encalado essai liming metodi analitici nitrogen nitrogen fertilizers prove pruebas soil water content sol acide solubilisation solubilizing solubilizzazione suoli acidi technique analytique teneur en eau du sol trials west bengal