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A sward of perennial ryegrass cv. S23 grown during 1979-81 was treated on 20 April with 130 kg N/ha as ammonium nitrate doubly labelled with 15N, foll...
Read moreSoyabeans cv. Davis were grown in the field in open-top chambers ventilated with charcoal-filtered air, non-filtered air or non-filtered air to which ...
Read moreA. odoratum populations from 8 plots of a long-term experiment given N, P, NP or no fertilizer, with or without lime, were grown in sand culture at 5 ...
Read moreTheoretical considerations indicated that it was possible to increase the precision of estimation of vegetation cover by reducing the number of pins i...
Read moreIn a glasshouse experiment, galvanised iron wires or woven fibre-glass strands placed 3 cm below the soil surface constricted the tap roots of Quercus...
Read moreSince arable-dwelling wood mice feed on many of the plant and animal species known to benefit from conservation headlands (6-m strips around crop fiel...
Read moreA method for measuring food preference of captive red grouse (Lagopus lagopus scoticus) is described. Selection from heather (Calluna vulgaris) of dif...
Read moreIn a study on the distribution of weed seeds in soil, seeds of lucerne and oilseed flax, which differ markedly in size, shape and seed-coat properties...
Read morePatterns of leaf expansion, under various light and temperature régimes, were studied in races of L. perenne and D. glomerata representing the climati...
Read morePopulation models that are used to predict weed population dynamics or the impact of control measures on weed abundance typically ignore temporal vari...
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