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Lolium perenne cv. S23, Trifolium repens cv. S184 and T. repens cv. Olwen were grown in the glasshouse as monocultures and as mixtures. Drought condit...

The results of the first 4 years of an experiment which has involved frequent applications of ammonium sulfate within a 1-km² tract of nitrogen-poor d...

The effects of applications of locust insecticides on birds were studied in the savannah of northern Senegal in 1989. The insecticides studied were fe...

The input and output of water, Na, K, Ca, P and N were measured over a 14 month period in a 45 m² watercress bed containing 6927 kg of a soil/gravel m...

In laboratory experiments mineral nutrients, particularly K, were readily dissolved from the ash left when heather was burnt but the rate of solution ...

The seasonal patterns of aerial biomass and biochemical composition of live graminoids, forbs, rushes, dwarf shrubs and dead plant material were exami...

The effective internal supply of specific nutrient elements in the seeds of 7 grass and 5 legume pasture species was quantified by growing newly germi...

Salt-marsh microcosms containing the halophyte Spartina alterniflora were maintained in a greenhouse for 2 years and given daily dosages of a hydrocar...

The effect of copper sulphate as an algicide is reviewed briefly. In experiments in which Anabaena flos-aquae and Scenedesmus quadricauda were exposed...

Populations of A. odoratum were collected from contrasting plots of the Park Grass Experiment, Rothamsted, grown under identical conditions for 6-18 m...