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In order to predict the optimum weeding period, a realistic estimate is needed of the size, timing and duration of a flush of weed emergence in a crop...Read more
This management plan provides information about the regulatory framework for the sustainable harvesting and cultivation of protected plants used in th...Read more
This management plan provides information about the regulatory framework for the sustainable harvesting and cultivation of protected plants for the wh...Read more
The composition and size of the germinable seed populations of undisturbed heathland soils in SE Dorset were compared to those of adjacent farmland wh...Read more
Yield determinations were made during Apr.-May and Aug.-Sept. on vegetative swards of Arrhenatherum elatius, Cynosurus cristatus, Festuca arundinacea,...Read more
This compilation comprises 4 chapters, which introduces the background context and rationale for a new global strategy for the conservation and use of...Read more
Linseed and lucerne seeds were sown broadcast over a 100 m2 field which was then ploughed twice at right angles to 20 cm and harrowed to a fine tilth....Read more
Seedling emergence patterns of triazine-susceptible and triazine-resistant Solanum nigrum plants were studied in the field at Wageningen, the Netherla...Read more
Studies were made in the Tavetsch Valley in the subalpine region of central Switzerland, of the day-active Lepidoptera faunas in different types of cu...Read more
The principle threats for sustainable production of wild collected medicinal plants are related to ecological factors, such as endemism, and botanical...Read more