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	Provedor de dados Organic Eprints (2) Autor Kautz, Timo (2) Köpke, Ulrich (2) Küpper, Paul Martin (2) Perkons, Ute (2) Antar, Philipp Martin (1) Pries, Charlotte (1) Mais... Palavra-chave Crop combinations and interactions (1) Crop husbandry (1) Soil (1) Tipo do documento Conference paper, poster, etc. (2) Ano 2014 (1) 2013 (1) País Germany (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Rates of photosynthesis and transpiration of spring wheat and barley as influenced by fodder precrops and their cropping period Organic Eprints Küpper, Paul Martin; Perkons, Ute; Pries, Charlotte; Antar, Philipp Martin; Kautz, Timo; Köpke, Ulrich. Perennial fodder cropping as compared to rotations including annual ploughing can increase the number of medium and large sized biopores in the subsoil. This can result in potentially facilitated root growth followed by increased accessibility of water in the subsoil. Additional plant-available water can enable stands to cope with dry periods in early summer, which will take place more often in future due to climate change. In this context we investigated whether crop species or cropping period of forage cropping influenced rates of photosynthesis and transpiration as indicators for water availability of spring wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.). Tipo: Conference paper, poster, etc. Palavras-chave: Crop combinations and interactions. Ano: 2014 URL: http://orgprints.org/24174/1/24174_MM.pdf Pflanzenbauliche Nutzung von Bioporen im Unterboden Organic Eprints Perkons, Ute; Küpper, Paul Martin; Kautz, Timo; Köpke, Ulrich. Biopores act as pathways for the roots of following crops to access water and nutrients stored in the subsoil. Their role for nutrient management is especially important under the conditions of Organic Agriculture. In a field trial on Haplic Luvisol, chicory (Cichorium intybus L., tap root system) and tall fescue (Festuca arundinacea, fibrous root system) were grown as precrops. Effects on biopore density, root-length density (RLD), leaf area index (LAI), biomass, transpiration and photosynthesis of following winter barley (Hordeum vulgare L.) were measured. Biopore density and RLD declined with soil depth. In all depth levels biopore density was higher after chicory in comparison to fescue. Between 95 and 125 cm soil depth the difference was significant.... Tipo: Conference paper, poster, etc. Palavras-chave: Crop husbandry; Soil. Ano: 2013 URL: http://orgprints.org/21634/1/21634_Perkons.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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