Microbial and biochemcial changes induced by rotation and tillage in a soil under barley production

alkaline phosphatase aradura biological activity in soil biologie du sol biomasa biomass biomasse calidad carbohidratos carbohydrates carbon carbone carbono cero-labranza chimie du sol conservation tillage enzimas enzyme enzymes enzymic activity flora del suelo flore du sol fosfatasa alcalina glucide hordeum vulgare labour labranza manejo del suelo mise en valeur du sol organic matter phosphatase alcaline ploughing quality quebec rotation culturale rotational cropping soil soil biology soil chemistry soil flora soil management sol suelo tillage travail du sol travail du sol de conservation trifolium pratense zero tillage