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The mean nitrate reductase activity (NRA) of leaf tissue, from various nitrogen environments, was four times greater in Sporobolus pyramidalis than in...
Read moreMineral nitrogen concentrations were greater in acid spoils (pH<5) than in limed or neutral spoils. In acid spoils, the predominant form was NH4-N....
Read moreNormal field populations of deep-burrowing or shallow-working earthworms were inoculated into small plots that had been sterilized with dichloropropan...
Read moreLosses of nutrients from young grass/clover swards in an establishing phase and older swards in a maintenance phase on china clay wastes were examined...
Read moreThe effects of bush clearing, cultivation and crop protection with DDT on surface casting activity and populations of earthworms were monitored over a...
Read moreThe effects of various environmental factors on the ditch bank vegetation in peat areas in the western Netherlands were studied to find the best manag...
Read moreIn the basement complex country of the area, ranges of rocky hills are separated by a deeply weathered pedeplain dissected by seasonal watercourses. I...
Read moreTemperatures were measured in a perennial ryegrass crop in the field and an attempt was made to relate temperature to growth. The instruments used are...
Read moreThe mathematical models of Gardner (1960) and Cowan (1965) are developed to show that the soil matric potential at which rhizosphere resistance become...
Read moreIn many grasslands, some ants act as ecological engineers to produce long-lasting soil structures which have a considerable influence on the patterns ...
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