The organic amendments increased the non-plant-parasitic nematode and decreased the parasitic nematode populations, as seen by the increased TFLN : TPPN ratios compared with the controls, particularly in the final spring samples after a period of relatively high rainfall.
and TPPN populations in the relatively dry winter season 2, although the TFLN : TPPN ratio remained unchanged.
For asymptomatic grapevines, composted cow manure and composted green waste increased the ratio TFLN : TPPN by 11.
2]) was weakly correlated with microbial activity, TFLN and microbial biomass C (r=-0.
There was also some evidence of this in the summer rainfall zone, with a weak correlation between exchangeable K and both TFLN and microbial activity (r = 0.
Cu concentrations at most of our surveyed sites were above this value, and yet there was a weak correlation between Cu levels and both TFLN and microbial activity (r = 0.