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The native grass D. fusca has become an important weed in rice fields in temperate Australia since rice cultivation began there in 1922. Field and gla...
Read moreIn a study of net above-ground productivity of the economically important woody weed, S. punicea, in S. Africa, with and without the introduced monoph...
Read moreAnnual determinations were made of the number of viable weed seeds in the soil on plots of a 9-year experiment with vegetable crops in which four prim...
Read moreThe size, composition and seasonal and depth-related variations in the soil seed bank of a former chalk grassland ley were determined at monthly inter...
Read moreThe effects of shoot and root competition in 23 studies including additive and replacement techniques, radial and linear layouts, several of methods o...
Read moreThe genetic structure of agricultural plant populations has long been recognized as an important factor in their vulnerability or resistance to diseas...
Read moreObservations on two burning regimes during a 3-year period in Machakos district (5200 ft. alt., rainfall 25 in./year) showed that these thickets can b...
Read moreEnclosures (4.5 m3) in a dense Potamogeton pectinatus community were enriched by weekly additions of NaNO3 and KH2PO4 at four rates (max. 1000 mu g N ...
Read moreGrowth of P. stratiotes at the southern-most tip of the man-made Volta Lake in Ghana was measured over 1 year. Biomass and relative growth rate remain...
Read moreA mechanistic physiological model for the growth of bracken has been developed which describes its yearly cycle in terms of three compartments: frond ...
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