Above ground biomass and water use efficiency of crops at shallow water tables in a temperate climate

Mueller, Lothar; Behrendt, Axel; Schalitz, Gisbert; Schindler, Uwe

doi:10.1016/j.agwat.2004.12.006

Cited by 85 publications

(45 citation statements)

References 12 publications

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“…Similarly, CP production (kg/ha) increased in the first cuts and decreased in the regrowths (Tables 4 and 5) in response to the N application because of the negative effects of this fertilizer on the development of legumes (Honsova et al, 2007). Other authors have also observed increases in DM production (Keady & O´Kiely, 1998;Madakadze et al, 1999;Elliott & Abbott, 2003a;Aydin & Uzun, 2005;Comakli et al, 2005;Mueller et al, 2005) and CP production (McCaughey & Simons, 1998) in the first cuts in response to N fertilization. In agreement with our results (Table 5), McCaughey & Simons (1998) and Keady & O´Kiely (1998) reported no significant effects of N fertilization on DM herbage production in the regrowths.…”

Section: Resultsmentioning

confidence: 87%

Influence of harvest season, cutting frequency and nitrogen fertilization of mountain meadows on yield, floristic composition and protein content of herbage

et al. 2009

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-The aim of the present study was to investigate the influence of cutting frequency, harvest season and nitrogen fertilization on yield and floristic composition of the herbage harvested from a mountain meadow. The meadow was divided into 22 plots, each receiving a different N P K fertilization treatment. The study lasted seven years, and during the first three years (1985)(1986)(1987) each plot was harvested twice per year (June and September) according to a traditional harvest system, whereas in the years 1989-1991 each plot was harvested three times per year (spring, summer and autumn) following a more intensive harvest system. Nitrogen fertilizer favoured the development of the grasses in spring, thus reducing the proportion of legumes in the two cut harvest system, whereas grasses reached an advanced stage of maturity before the first cut in late June. However, the three cut harvest system entailed an earlier first cut in spring. As a result, the production of legume biomass was significantly increased both in the first cut and in the subsequent regrowths. No significant response in total herbage production to the N fertilizer was observed in the more intensive harvest system. Therefore, the three cut harvest system without nitrogen fertilization seemed to be the most suitable practice for the management of these botanically-complex mountain meadows. These results may contribute to design fertilization and management practices of mountain hay meadows to optimize their productivity and sustainability.Key Words: chemical composition, cutting frequency, floristic composition, herbage yield, nitrogen fertilization Influência da estação da colheita, freqüência de corte e fertilização nitrogenada de prados de montanha sobre o rendimento, a composição botânica e o conteúdo de proteína da forragem RESUMO -O objetivo neste estudo foi investigar a influência da freqüência de corte, da estação de colheita e da adubação nitrogenada no rendimento e na composição botânica da forragem recolhida de um prado de montanha. O prado foi dividido em 22 parcelas, cada uma com nível de fertilização N P K. O estudo durou sete anos e, durante os três primeiros (1985)(1986)(1987), cada parcela foi cortada duas vezes por ano (junho e setembro), seguindo um sistema de aproveitamento tradicional, ao passo que, nos anos 1989-1991, cada parcela foi cortada três vezes por ano (primavera, verão e outono), seguindo um sistema de aproveitamento mais intensivo. O fertilizante nitrogenado favoreceu o desenvolvimento das gramíneas na primavera, reduzindo a proporção de leguminosas no sistema de dois cortes anuais, de modo que as gramíneas alcançaram etapa avançada de maturidade antes do primeiro corte, ao final do mês de junho. No entanto, com o sistema de três cortes anuais, o primeiro corte foi realizado mais cedo, na primavera. Conseqüentemente, a produção da biomassa de leguminosas aumentou significativamente, tanto no primeiro corte como nos rebrotes subseqüentes. Nenhum efeito significativo na produção total de forragem em respost...

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Section: Resultsmentioning

confidence: 87%

Influence of harvest season, cutting frequency and nitrogen fertilization of mountain meadows on yield, floristic composition and protein content of herbage

et al. 2009

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“…Für den Wasserhaushalt von Kleingewässern spielt weniger die Verdunstung von der Wasseroberfl äche als vielmehr die Transpiration der Vegetation im Uferbereich eine entscheidende Rolle. Die Jahresraten der Evapotranspiration dichter Schilfbestände liegen in der Regel deutlich, teils bis zum Dreifachen über der Jahresniederschlagsmenge (Herbst & Kappen 1993;Behrendt et al 2001;Dannowski & Balla 2004;Müller et al 2005). Generell weisen Oberfl ächengewässer und Feuchtgebiete in der Region Brandenburg-Berlin eine negative Wasserbilanz in Höhe von ca.…”

Section: Landnutzungunclassified

Umweltwandel und die Folgen für den Landschaftswasserhaushalt

Germer

Köstner

Sukopp

et al. 2011

Globaler Wandel Und Regionale Entwicklung

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Section: Subirrigationmentioning

confidence: 99%

“…Subirrigation requires a flat field with a slope of less than 1-2% (Pajula & Triipponen, 2003) and sandy soil in which the capillary rise is high and soil permeability is sufficiently fast and uniform within a field (Geohring et al, 1995;Muellera et al, 2005). Optimum water table depth is related to soil type and crop grown on the field (Muellera et al, 2005). Gilliam & Skaggs (1986) listed five environmental benefits that derive from using subirrigation: 1) more complete use of fertilizers, 2) reduced nutrient losses, 3) reduced leaching of pesticides and herbicides, 4) stabilized crop production and 5) more food grown on flat land, thereby removing erosion-prone land from cultivation and increasing land area for forests, grasslands, wildlife habitats and recreational uses.…”

Section: Subirrigationmentioning

confidence: 99%