The technique has given good results on high
base status soils with moderate fertility. However, on
acid and low fertility soils, where both hedgerow
species and associated crops tend to have shallow
and restricted root growth, below ground nutrient
competition between woody and crop species can
become a major problem (Evensen et al., 1991; Szott
et al., 1991). Results of trials in the semi-arid zone
have not been encouraging (Singh et al., 1989) as
moisture competition between hedgerows and crops
is a major problem.
The technique has given good results on highbase status soils with moderate fertility. However, onacid and low fertility soils, where both hedgerowspecies and associated crops tend to have shallowand restricted root growth, below ground nutrientcompetition between woody and crop species canbecome a major problem (Evensen et al., 1991; Szottet al., 1991). Results of trials in the semi-arid zonehave not been encouraging (Singh et al., 1989) asmoisture competition between hedgerows and cropsis a major problem.
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