Navua sedge (Cyperus aromaticus) is threatening crops, pasture species and natural ecosystems in Pacific Island countries northern Queensland, Australia. To aid future management efforts of this exotic invasive weed, research was conducted to understand the soil seed bank dynamics pastures invaded by sedge. Six grazing properties were chosen across two landscapes, coastal inland/upland, with ar...

Isolated wetlands embedded within longleaf pine savannas support a high proportion of regional biodiversity including many amphibian species. Today, remnant isolated are often overgrown and hydrologically altered due to fire exclusion or incompatible, cool season regimes. In the absence warm fires when dry, shrubs trees succeed herbaceous plants, which alters wetland productivity via effects on...

Abstract Weed species composition has been assessed for major crops such as rice, rubber, and oil palm but not cash in Malaysia. In this study, we determine the associations between maize yields weed species, density, mean temperature, rainfall. Annual field surveys of weeds were conducted (Zea mays L.) a former tin-mining land Malim Nawar, Perak, Malaysia, during June 2017, 2018, 2020 to effec...

The technology and the installation of acid mine water treatment by bioaccumulation, is realized in three distinct stages, namely: primary stage, consisting raw capture, with neutralizing coagulating chemical reagents, solid phase settling sludge treatment, [I, II , IV, V], secondary removal heavy metals neutralization acidity passing effluent first through a battery phytoextraction cells, [III...

Navua sedge is a difficult-to-control perennial in north Australian farming systems, including fallow fields, pastures, and along roadsides fencelines. A set of pot trials were conducted to evaluate the performance different herbicides when used alone or mixtures on sizes plants, adjuvant treatments rainfastness halosulfuron-methyl. Glyphosate at 1080 g·ha−1, halosulforon-methyl 49 paraquat 600...

A 1977 tundra fire burned a hillslope where prefire soils and vegetation ranged from poorly drained moist tussock-shrub tundra on the lower slopes to well-drained dwarf shrub tundra on the back slope and very poorly drained wet sedge meadow on the flat crest. We sampled the vegetation on this slope before the fire and at 8 sites following the fire at irregular intervals from 1 yr to 25 yr. Duri...