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Non-timber forest products (NTFP) are harvested by millions of people for their livelihood. To define sustainable harvest limits it is critical to und...
Read moreTwo interrelated experiments at Basel on the effect of root herbivory by the moth Agapeta zoegana on C. maculosa, under various competitive environmen...
Read moreDetailed measurements of the growth and development of a crop of barley cv. Proctor were used to study the processes determining ear number/unit field...
Read moreWhen weather was favourable (warm, dry) for ovi-position by O. frit, the combined activity of predators and parasites was found to be inadequate to pr...
Read moreIn competition experiments the suppression of Early Hybrid by F1 Selma was not eliminated by increasing nutrient supply levels up to several times the...
Read moreLoss of short-wave radiation by reflection from an irrigated maize crop grown for forage averaged 0.18 of the incident total short-wave radiation rece...
Read moreWeight and nutrient losses from fresh roadside cuttings were studied in the field in the Netherlands during a 6-week period between 24 May and 6 July ...
Read moreInvestigations were made of arthropods in a silty, poorly drained, gray soil under dry grassland, irrigated sugar cane, and under natural grassland re...
Read moreAgricultural intensification has led to the loss of most natural wetlands from human-dominated landscapes but, in recent decades, wetland restoration ...
Read moreConcerns about loss of biodiversity and structural complexity in managed forests have recently increased and led to the development of new management ...
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