Temat: irrigation level - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Impact of different irrigation water levels on yield and some quality parameters of lettuce (Lactuca sativa L. var. Longifolia cv.) under unheated greenhouse condition
Autorzy:: Senyigit, U.
Kaplan, D.
Powiązania:: https://bibliotekanauki.pl/articles/60108.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: irrigation water
water level
yield
quality parameter
lettuce
Lactuca sativa var.longifolia
plant cultivar
greenhouse condition
evapotranspiration
Opis:: The experiment was carried out to determine the effects of different irrigation water levels on yield and some quality parameters of lettuce (Lactuca sativa L. Var. Longifolia cv.) under greenhouse conditions. Irrigation water was applied through drip irrigation method with 7 days interval during the total growing season. Irrigation treatments consisted of six different water levels (I1: non-irrigation, I2: 25 %, I3: 50 %, I4: 75 %, I5: 100 % and I6: 125 % of cumulative evaporation measured from Class A pan). The amount of irrigation water ranged between 0 and 106.3 mm among the treatments. Evapotranspiration (ET) values varied from 69.1 to 158.5 mm for the treatments. The highest yield was obtained from the I5 followed by I4. A significant polynomial relation (R2=0.77) was obtained between the yield and irrigation water, and linear relation (R2=0.99) was obtained between the yield and ET. This indicated that when irrigation water increased, yield also increased to a certain point. However, when the amount of irrigation water exceeded the plant water requirement, lettuce yield decreased. Yield response factor (Ky) was determined as 1.97. Since Ky ˃ 1, lettuce was very sensitive to water deficiency. In addition, the highest water use efficiency (WUE) and irrigation water use efficiency (IWUE) values were calculated in the I5 with 0.60 t ha.mm-1 and 0.96 t ha.mm-1 respectively. The best plant quality parameters which were plant weight (239.11 g), plant height (26.30 cm), plant diameter (44.82 cm), root weight (17.31 g), root length (9.02 cm), root diameter (10.04 cm) and leaf number (49) were also obtained in I5. As a result, it was suggested that I5 can be the most appropriate irrigation water level for lettuce with higher WUE, IWUE, yield and quality under greenhouse conditions.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2013, 2/IV
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Long-term Changes in the Stability of Agricultural Landscapes in the Areas of Irrigated Agriculture of the Ukraine Steppe Zone
Autorzy:: Pichura, Vitalii
Potravka, Larisa
Domaratskiy, Yevhenii
Vdovenko, Nataliia
Stratichuk, Natalia
Baysha, Kira
Pichura, Ivan
Powiązania:: https://bibliotekanauki.pl/articles/24201644.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: irrigation
sustainability
agricultural landscape
groundwater level
climate
fertilizer
export potential
national security
Opis:: Spatio-temporal assessment of the sustainability of agricultural landscapes over a long period (1892–2020 – 130 years) was carried out on the basis of archival spatial data for the territory of the Dnieper district of the Tauride province and modern data from the State Agency for Water Resources of Ukraine. Taking into account the historical patterns of the development of agriculture on the territory of the Dnieper district and the results of spatial modeling in 1892, territories with low (4.1 thousand hectares – 0.3% of the total area) and medium (310.3 thousand hectares – 23.8%) level of sustainability of agricultural landscapes, which are located in the lower reaches of the Dnieper, were identified. However, the large-scale development of the territory for agricultural land and the development of irrigated agriculture have led to the activation of land degradation processes, soil fertility and the deterioration of the stability of agricultural landscapes over large areas. As a result of spatial modeling, the state for 2020 in the irrigation zone recorded significant areas of agricultural land and adjacent territories with low (179.1 thousand hectares – 13.7% of the total area) and medium (419.0 thousand hectares – 32.1%) stability level. A comparative analysis of the stability of agrolandscapes for two time periods (1892 and 2020) showed that large-scale agricultural land development and an imbalanced land-use culture lead to constant and almost irreversible processes of reducing the stability of agrolandscapes in the areas of irrigation reclamation.
Źródło:: Journal of Ecological Engineering; 2023, 24, 3; 188--198
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Onion crop response to regulated deficit irrigation under mulching in dry Mediterranean region
Autorzy:: Mubarak, I.
Hamdan, A.
Powiązania:: https://bibliotekanauki.pl/articles/2155.pdf
Data publikacji:: 2018
Wydawca:: Instytut Ogrodnictwa
Tematy:: onion
bulb
yield
water productivity
clay loam soil
soil cover
irrigation level
straw mulching
dry matter
Mediterranean region
Źródło:: Journal of Horticultural Research; 2018, 26, 1
2300-5009
Pojawia się w:: Journal of Horticultural Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of Supplemental Irrigation on Crop Yields: Case Study Kales (Brassica Oleracea) Crop
Autorzy:: Maina, Jedidah
Wandiga, Shem
Gyampoh, Benjamin
Gachene, Charles
Powiązania:: https://bibliotekanauki.pl/articles/125115.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: supplemental irrigation
rainfed
crop yields
level of significance
Opis:: The aim of this study was to investigate the effects that supplemental irrigation (SI) has on the Kale (Brassica Oleracea) crop yields as compared to the wholly rain-fed crop. The experiments were conducted in Kieni, Central Kenya where the rainfall pattern was bimodal. The planting for rain-fed crops was done in three blocks, each measuring 10×1 m with a spacing of 30 cm between plants and 45 cm between the rows of plants; the procedure was repeated for the crops receiving SI. The average weekly yields were computed for both crops for each season comprised of 14 weeks. The average weekly yields were subjected to Analysis of Variance (ANOVA) to determine whether the average yields from the rain-fed and supplemental irrigated crops were statistically different. This was done with MS Excel 2016 spread sheets by setting a statistical level of significance of 5%. The F value was 17.94 higher than the critical value of 4.01 while the P-value of 9×10^–5 was lower than the 5% level of confidence meaning that there was a significant difference in the yield means of the rain-fed and SI crops. The total rain-fed crop yields for the period was 147.0 Kgs and that of the one under SI was 238 Kgs, an increase of about 62%. Therefore, supplemental irrigation can be adopted in the areas where rainfall trends are declining to increase the crop yields when all other factors remain constant for farmers – to increase resilience.
Źródło:: Journal of Ecological Engineering; 2020, 21, 2; 209-213
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Determination of vegetative and generative characteristics of different cotton varieties under drought stress
Autorzy:: Demirel, E.
Ödemiş, B.
Powiązania:: https://bibliotekanauki.pl/articles/101412.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: cotton
irrigation level
drought
drought tolerance
growth periods
Opis:: The research was carried out to determine the effect of different irrigation water requirements of different irrigation levels (mm), on the evapotranspiration seed yield (kg da-1) with vegetative and generative properties of two cotton types (drought tolerant, BA 525) and (drought susceptible, Lydia), in the Eastern Mediterranean region (Turkey). Drought or water deficit stress elicits many different phenological responses in plants. The study of vegetative features included the fresh and dry weight of plant (g), leaf area (cm2 ), number of leaves (number plant-1), number of fruit branches (number plant-1), number of bud formation (number plant-1) and number of node (number plant-1).This result indicates that water stress in plants limit the phenological development significantly and the average of all measurements made after flowering has been observed to decrease.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1169-1177
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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