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The productivity of selected soybean cultivars grown using various cultivation methods

100%

Księżak J. , Bojarszczuk J.

Journal of Water and Land Development

2024

tom no. 62

88--96

Soybean is an important legume crop globally due to its rich protein, oil content, and functional components. The purpose of this study was to evaluate the yield of selected soybean cultivars depending on cultivation methods. The three-year field experiment, conducted from 2018 to 2020 at the Agricultural Experimental Station in Kępa-Puławy, Osiny farm (Institute of Soil Science and Plant Cultivation - State Research Institute in Puławy), investigated these variations. The first experimental factor was the soil cultivation method: A - conventional tillage, B - reduced tillage, and C - strip tillage. The second variable was soybean cultivar: ‘Aldana’ and ‘Merlin’. The soybean cultivars were selected for their differing maturity rates: ‘Aldana’ (000) is an early cultivar, while ‘Merlin’ (000++) semi-late cultivar. The field experiment utilised a split-plot design on Luvisol soil with sandy loam texture, belonging to a good rye complex, class IIIb-IVa, and was replicated four times. The study showed that the productivity (seed and protein yield) of the ‘Merlin’ cultivar grown in the central-eastern part of Poland was approximately 8% higher than that of the ‘Aldana’ cultivar. The cultivation method had a relatively minor influence on soybean yield, the content of selected nutrients, morphological features, and elements of the yield structure. The soil in strip-tillage method was more compact than the soil cultivated with a plough. After harvesting soybeans at a depth of 30, and 40 cm, the compactness of soil in strip-tillage or with reduced tillage was much lower than in spring, highlighting a positive effect of soybean cultivation on loosening the arable layer.

Impact of the projected climate change on soybean water needs in the Kuyavia region in Poland

86%

Kasperska-Wołowicz W. , Rolbiecki S. , Sadan H. A. , Rolbiecki R. , Jagosz B. , Stachowski P. , Liberacki D. , Bolewski T. , Prus P. , Pal-Fam F.

Journal of Water and Land Development

2021

tom no. 51

199--207

According to the SRES A1B climate change scenario, by the end of the 21st century temperature in Poland will increase by 2-4°C, no increase in precipitation totals is predicted. This will rise crop irrigation needs and necessity to develop irrigation systems. Due to increase in temperature and needs of sustainable agriculture development some changes in crop growing structure will occur. An increase interest in high protein crops cultivation has been noted last years and further extension of these acreage is foreseen. Identifying the future water needs of these plants is crucial for planning and implementing sustainable agricultural production. In the study, the impact of projected air temperaturę changes on soybean water needs, one of the most valuable high-protein crops, in 2021-2050 in the Kuyavia region in Poland was analysed. The calculations based on meteorological data collected in 1981-2010 were considered as the reference period. Potential evapotranspiration was adopted as a measure of crop water requirements. The potential evapotranspiration was estimated using the Penman-Monteith method and crop coefficient. Based on these estimations, it was found that in the forecast years the soybean water needs will increase by 5% in the growing period (from 21 April to 10 September), and by 8% in June-August. The highest monthly soybean water needs increase (by 15%) may occur in August. The predicted climate changes and the increase in the arable crops water requirements, may contribute to an increase in the irrigated area in the Kuyavia region and necessity of rational management of water resources.

Wpływ uprawy soi w monokulturze i zmianowaniu na skład chemiczny roślin i zasobność gleby w składniki pokarmowe

58%

Jakubus M. , Tatusko N. , Nawracala J. , Pluta M.

Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura

2015

tom 70

nr 3