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Gewählte Master / Diploma Thesis:

Alexander Böck (2015): Ertragsentwicklung und Stickstoffdynamik von Weizen und Erbse im Gemengeanbau.
Master / Diploma Thesis - Abteilung Pflanzenbau, BOKU-Universität für Bodenkultur, pp 50. UB BOKU obvsg

Data Source: ZID Abstracts
Abstract:
Wheat and pea intercropping may have yield advantages compared to monocrops, as they can better use the growth factors light, water and nutrients. The aim of this study was to test the effects of sowing time and sowing ratio on plant growth, yield and yield components, nitrogen (N)-contents in the above-ground dry matter (AGDM) and in the soil as well as the N yields in intercrops of wheat and pea grown in the Pannonian area of Eastern Austria. Autumn-sowing resulted in a faster development of crops and thus in higher AGDM, grain and grain N yield and higher harvest indices and thousand kernel weights (TKW). Whereas spring-sown crops had higher N contents in residues. In the intercrops, the TKW and the grain N content of wheat increased with a decreasing wheat share because of a relatively higher amount of soil mineral N (Nmin) for individual plants. Wheat was the more dominant crop, whereas the pea was suppressed by wheat competition. The pure stand of wheat had the lowest crop stand height, which increased in the mixtures with decreasing sowing ratio of wheat. The pure stands of pea had higher AGDM and grain yields than the wheat monocrop. The Land Equivalent Ratios of intercrops were > 1 for grain and grain N yields; thus, intercrops could achieve a yield advantage over monocrops. Nmin was generally lowest in the wheat monocrops and increased with higher share of pea on the sowing ratio. During the vegetation period, higher Nmin values were found in the spring-sown treatments than in the autumn-sown ones; whereas, no differences in Nmin were observed at harvest. The higher grain and grain N yields of intercrops than for monocrops indicate that intercropping may represents an interesting cropping system, especially for low-input agricultural systems.

Beurteilende(r): Kaul Hans-Peter
1.Mitwirkender: Neugschwandtner Reinhard

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