University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Doctoral Thesis:
Mathias Gamerith
(2021):
Einfluss einer Kartoffeldammabdeckung auf ausgewählte boden- und pflanzenbauliche Kriterien bei Kartoffeln (Solanum tuberosum L.)sowie bei der Nachfrucht Winterweizen(Triticum aestivum L.).
Doctoral Thesis - Institut für Pflanzenbau,
BOKU-Universität für Bodenkultur,
pp 182.
UB BOKU
obvsg
FullText
- Abstract:
- Over the coming decades increasing periods of drought and extreme weather events are highly likely to occur. In order to combat undesirable effects on crop production, for instance yield reduction, an adaption of current crop management strategies is required. In addition to agricultural factors, protection of soil is of high socio-political significance. The objective of this dissertation was to use different materials in order to cover potato ridges and then test the influence of those materials regarding stability of the ridge, yield and quality of starch potatoes. Covering materials included grassland cut, hay, clover cut and rye cut in an output quantity of 10 to 50 tons per hectare. These variants were compared to check plots without any coverage material. To assess the effects of the coverage material on potatoes, components of yield as well as grain yield and protein content of the subsequent crops winter wheat were determined. In the field study carried out over a period of four years, it has been shown that an increasing amount of coverage material lead to a rise in tuber and starch yield. Across all test locations, grassland cut coverage of 50 tons per hectare reached – in contrast to check plots – an increase in tuber yield. Moreover, the type and quantity of coverage material neither influenced starch content nor did it promote infestation or diseases. Covering potato ridges lead to a reduction of extreme temperature minima and maxima in the ridge over the course of the day. Manual and photogrammetric measurements showed stability of the ridges. Different coverage material used in the field study provided additional supply of nutrients and thus, resulted in different amounts of residual nitrogen content of the soil after harvesting. Apart from that, previously applied grassland cut coverage of 50 tons per hectare showed an average additional winter wheat yield as opposed to check plots. Protein content of winter wheat was not influenced.
- Betreuer: Liebhard Peter
- 1. Berater: Bodner Gernot
- 2. Berater: Eitzinger Josef