Search

Sheep were grazed at a high stocking rate for a few days 3 times each summer in a Sitka spruce plantation in Co. Antrim from 1970 to 1974 (7th to 11th...

Cattle urine, labelled with ¹⁵N urea, was applied in August 1987 at a rate equivalent to 74 g N/m² to a series of confined microplots, at Hurley, UK, ...

The productivity of economically valuable focal trees in mixtures is often improved by inclusion of lower-value nursing species, but the mechanisms un...

Nitrogen (N) loss from agricultural fields and urban areas to stream and groundwaters is a world-wide environmental problem. Excessive nitrogen loadin...

Iceland has vast areas of mobile sand resulting from volcanic glacier bursts and erosion. Seeds of the coastal, dune-building grass Leymus arenarius a...

In field trials at Kjettslinge near Uppsala in 1980-85, annual C and N budgets were calculated for the following systems: (a) barley without fertilize...

The numbers and distribution of lesser snow-geese (Chen caerulescens) and their effects on plant communities were studied in a 40 × 200 km area roughl...

Yield responses of various grasses to ammonium-N and nitrate-N were investigated in pot trials. Yields with nitrate-N as a percentage of those with am...

Annual meadow grass Poa annua is the most problematic weed within sports turf in temperate climates. It is so abundant that herbicides cannot be used ...

Vine mealybug Planococcus ficus is an invasive pest of vineyards in many areas of the world. In California, USA, it infests all plant subunits and has...