نتایج جستجو برای: pasture trees
تعداد نتایج: 97767 فیلتر نتایج به سال:
Tropical beef cattle production involving animals grazing in a shaded and biologically diverse environment, surrounded by high-quality edible biomass, is achievable through silvopastoral systems (SPSs). However, it necessary to assess the effects of presence trees on forage animal performance over time. In Brazilian Cerrado, we evaluated 2 densities eucalyptus SPSs (8 years age - SPS22: 227 tre...
‘Tree-pasture’ silvopastoral systems have the potential to become transformative multifunctional landscapes that add both environmental and economic value pastoral farms. Nevertheless, no published study has found increased pasture production under mature trees in New Zealand hill country. This takes a novel approach research Zealand, investigates genus similar bio-physical attributes other glo...
Boron deficiency was first recorded in Australia in the 1930s in apple trees growing in Tasmania and New South Wales. Subsequently the deficiency was found in a wide range of pasture and crop plants. Crops with higher boron requirements such as lucerne, sunflowers, rapeseed, cauliflower and apples are most likely to respond to boron. Pine trees, which are commonly used in tree lots and as windb...
BACKGROUND Hypoglycin A, found in seeds of Acer negundo, appears to cause seasonal pasture myopathy (SPM) in North America and is implicated in atypical myopathy (AM) in Europe. Acer negundo is uncommon in Europe. Thus, the potential source of hypoglycin A in Europe is unknown. HYPOTHESIS AND OBJECTIVES We hypothesized that seeds of Acer pseudoplatanus were the source of hypoglycin A in Europ...
Question: Are contemporary herb and tree patterns explained by historic land use practices? If so, are observed vegetation patterns associated with lifehistory characteristics, soil properties, or other environmental variables? Location: Southeastern Ohio, USA. Methods: Using archival records, currently forested sites were identified with distinct land use histories: cultivated, pasture (but no...
Early-successional vegetation is often a major factor that limits recovery of tropical forest in abandoned pastures by outcompeting seedlings of forest trees. The goal of this study was to compare the effects of aboveand below-ground competition of pasture grasses and shrubs on the growth of tree seedlings in abandoned tropical pasture in Costa Rica. Seedlings of Calophyllum brasiliense were pl...
Natural grasses in semiarid rangelands constitute an effective protection against soil erosion and degradation, are a source of natural food for livestock and play a critical role in the hydrologic cycle by contributing to the uptake and transpiration of water. However, natural pastures are threatened by land abandonment and the consequent encroachment of shrubs and trees as well as by changing...
1. Ecophysiological characteristics of eight rainforest species established in mixed-species plantings –Catherine Drane (PhD submitted 1995) 2. Physiological aspects of growing cabinet timber species in plantations – Amanda Snell (PhDsubmitted 1996) 3. Pasture productivity below rainforest trees : an agroforestry trial – Oliver Woldring (BSc Honours1995) 4. Mycorrhizae of tropical r...
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