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Seeds of calabrese, carrot, onion and sugar beet were sown in the field on successive occasions. Soil integral impedance (work done in penetrating the...

The soils and vegetation of horse tracks which passed through Pteridium aquilinum or Calluna vulgaris dominated sites, with underlying podsols, were s...

Several successional trends towards woodland were identified. A greater number of species was present in a felled wood than in an abandoned arable fie...

This study was conducted to examine the distribution of C. juncea in relation to various environmental conditions in the western Mediterranean where t...

In three experiments, begun in successive years, seeds of twenty species of annual weeds were mixed with 15 cm of soil confined in cylinders sunk in t...