Yazar "Pal-Fam, Ferenc" seçeneğine göre listele

Listeleniyor 1 - 4 / 4
  • Küçük Resim
    Öğe
    Effect of subsurface drip fertigation with nitrogen on the yield of asparagus grown for the green spears on a light soil in central Poland
    (2022) Rolbiecki, Roman; Sadan, Hicran; Rolbiecki, Stanislaw; Jagosz, Barbara; Szczepanek, Malgorzata; Figas, Anna; Atılgan, Atılgan; Pal-Fam, Ferenc; Panka, Dariusz
    Abstract: During the growing period of many agricultural and horticultural plants, the use of fertigation usually increases the yield; however, the response to this treatment may depend on the cultivar. The effect of subsurface drip fertigation with nitrogen on the yield of three asparagus (Asparagus officinalis) cultivars grown for green spears in light soil was studied. The multi-year (2011–2017) field experiment was carried out on sandy soil and was arranged in a split-plot design with four replications. The first factor was the method of fertilization with nitrogen: (1) control— spreading nitrogen fertilization without irrigation and (2) subsurface drip fertigation with nitrogen. The second factor was the genotype (a cultivar) of asparagus—the following cultivars were tested: Ramada, Rapsody and Ravel. Generally, subsurface drip fertigation with nitrogen increases the marketable yield of green spears and the number of spears produced by a single plant, as well single-spear weight. ‘Ramada’ achieved the best results with all yield parameters. A significant correlation coefficient between the sum of rainfall and irrigation rates and yield parameters of tested cultivars was also found. The studies showed a varied response of the tested asparagus cultivars to the fertigation treatment.
  • Küçük Resim
    Öğe
    Effect of the forecast air temperature change on the water needs of vines in the region of Bydgoszcz, Northern Poland
    (2022) Jagosz, Barbara; Rolbiecki, Stanislaw; Rolbiecki, Roman; Ptach, Wieslaw; Sadan, Hicran Asmin; Kasperska-Wolowicz, Wieslawa; Pal-Fam, Ferenc; Atılgan, Atılgan
    The climatic changes observed in Poland are manifested by an increase in air temperature, but not an increase in rainfall, which causes an increase in the water needs of plants, and hence the necessity to develop irrigation systems for crops. The aim of this study was to assess the water needs of grapevines in 2021-2050 in the Bydgoszcz region (northern Poland), an area with high requirements for supplementary irrigation. The calculations were based on the expected changes in air temperature according to the climate change scenario for Poland: the 4th Intergovernmental Panel on Climate Change-Special Report on Emissions Scenarios: balanced scenario (A1B). The average monthly temperature in 1981-2010 was used in the calculations. The water needs of grapevines were estimated using the reference evapotranspiration calculated using the Blaney-Criddle equation, and then using the crop coefficient and potential (crop) evapotranspiration. It was found that in 2021-2050, the water needs of grapevines, both during the growing season (May-September) and during the irrigation period (June-August), will increase by 6%. The highest and significant increase in water needs, by 10%, should be expected in August. The estimated increase in water needs of grapevines indicates the need to development sustainable irrigation systems for vineyards in northern Poland.
  • [ X ]
    Öğe
    Sustainable Water Management of Drip-Irrigated Asparagus under Conditions of Central Poland: Evapotranspiration, Water Needs and Rainfall Deficits
    (Mdpi, 2024) Rolbiecki, Stanislaw; Rolbiecki, Roman; Sadan, Hicran A.; Jagosz, Barbara; Kasperska-Wolowicz, Wieslawa; Kanecka-Geszke, Ewa; Pal-Fam, Ferenc
    Water is a valuable yet scarce resource in agriculture. Optimizing crop production relies on irrigation, but within the framework of sustainable agriculture, efforts should prioritize reducing irrigation water usage. Unfortunately, climate change increases plant water requirements, consequently heightening the need for irrigation. The aim of the research was to estimate the water needs of asparagus during the fern growth period (21 June-31 August) using the Blaney-Criddle method. The study also aimed to determine trends in changing water needs and estimate precipitation deficits. Calculations were carried out for the years 1981-2020 across four provinces in central Poland. The research indicated that water needs varied between 233 mm and 242 mm, depending on the province. Over the forty-year period, all provinces displayed an increasing trend in water needs, with a rise of 3.1 mm to 6.2 mm per decade. Between 21 June and 31 August, rainfall deficits occurred with varying intensity in all provinces during normal, medium dry and very dry years. The values of water needs and rainfall deficit, calculated as a result of the research, are of key importance in the design, construction, and management of drip irrigation systems for asparagus plantations in central Poland.
  • [ X ]
    Öğe
    Towards Water-Efficient Irrigation of Cup Plant (Silphium perfoliatum L.) for Energy Production: Water Requirements and Rainfall Deficit
    (Mdpi, 2024) Figas, Anna; Rolbiecki, Roman; Rolbiecki, Stanislaw; Jagosz, Barbara; Langowski, Ariel; Sadan-Ozdemir, Hicran A.; Pal-Fam, Ferenc
    The cup plant shows promise for biomass production and has significant potential for increasing biodiversity. This species primarily grows in habitats with high soil humidity. Precipitation deficits are common throughout Poland, especially in the central regions, necessitating crop irrigation. To design and manage resource-efficient irrigation for the cup plant, estimating water requirements and rainfall deficits is essential. This research aims to calculate water requirements, rainfall deficits, and irrigation demand and to assess their temporal and spatial variations for cup plants energy plantations from 1981 to 2020. The study, conducted using the Blaney-Criddle method, focused on the growing season (1 April-30 September) across four provinces in central Poland: Kuyavian-Pomeranian (18 degrees 01 ' E, 53 degrees 08 ' N), Greater Poland (16 degrees 50 ' E, 52 degrees 25 ' N), Masovian (20 degrees 59 ' E, 52 degrees 09 ' N), and Lodz (19 degrees 24 ' E, 51 degrees 44 ' N). The research revealed varying values of water requirements depending on the province, ranging from 445.9 mm in Lodz province to 465.2 mm in Kuyavian-Pomeranian province. The magnitude of water requirements also significantly depended on the month of the growing season, with the highest value occurring in July (from 103.6 mm in Lodz province to 108.9 mm in Kuyavian-Pomeranian province). Over the forty-year period, a notable upward trend in water requirements was observed across all provinces, ranging from 6.7 mm per decade to 12.5 mm per decade. On average, rainfall deficits during the growing season amounted to 125 mm in normal years, 237 mm in medium dry years, and 316 mm in very dry years. These findings are crucial for efficient irrigation management in central Poland, which, in line with sustainable agricultural development, will enable the maximization of yields of this plant while simultaneously conserving water resources.