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N fixation rates associated with various plant spp. growing on china clay waste materials were estimated using the acetylene reduction technique. Rate...
Read moreLarge-scale trials, using applications of organic materials and pulverized fuel ash on Zn smelter waste, were set up in the Lower Swansea Valley, UK, ...
Read moreSuccession on an organic tundra soil in interior Alaska was monitored for 10 growing seasons following removal of vegetation. Exotic grasses (reed can...
Read moreThe construction and calibration of a sensor for measuring light interception in crop canopies are described.
Read moreSamples of aphids and predators were taken from 10 spring barley and winter wheat fields in southern UK between May and September in 1972-77. The guts...
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