Temat: crop irrigation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Electrosaving system of stable management of crop cultivation in highlands and lowlands
Autorzy:: Veranyan, G.
Mkhoyan, A.
Tokmajyan, V.
Bayunts, H.
Powiązania:: https://bibliotekanauki.pl/articles/2065410.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Częstochowska
Tematy:: crop
highland
lowland
irrigation
surface
river
uprawa
wyżyna
nizina
nawadnianie
powierzchnia
rzeka
Opis:: Agriculture is one of the strategic spheres of the economy in highland and lowland regions, the main impact of its development by farmers is the management of stable regimes of cultivating crops. Nowadays in Armenia and Artsakh, agriculture develops mainly due to enlarging mostly agricultural crop lands. As a means of solving the main task, one method of calculating the parameters of irrigation regimes is suggested in the case of drip and sprinkle irrigation.
Źródło:: Budownictwo o Zoptymalizowanym Potencjale Energetycznym; 2018, 7, 2; Bibliogr. 4 poz.
2299-8535
2544-963X
Pojawia się w:: Budownictwo o Zoptymalizowanym Potencjale Energetycznym
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Defining Irrigation Scheduling Based on Crop Water Stress Index and Physiological Parameters for Hybrid Corn in Semi-Arid Climate
Autorzy:: Ucak, Ali Beyhan
Saltuk, Burak
Rolbiecki, Roman
Atilgan, Atilgan
Powiązania:: https://bibliotekanauki.pl/articles/2174923.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: corn
crop water stress index
irrigation time
correlation
Opis:: The goal of this study is to determine the crop water stress index (CWSI) and irrigation scheduling based on CWSI values, as well as to examine the correlations between CWSI, physiological parameters and grain yield of hybrid corn P31A34 in semi-arid climate conditions. In 2014 and 2015, the upper limit (UL) temperatures at which plants were entirely exposed to water stress were 1.178°C and 2.38°C, respectively. When the corn grain yield began to decline, the CWSI threshold value was 0.34, indicating the yield limit. Grain yield, crop water consumption, crop water stress index, chlorophyll content, water use efficiency and leaf area index were found to have negative correlations (p ≤ 0.01) with CWSI values in both years of the study. The findings revealed that in semi-arid climate conditions, a maximum of 30% water deficit could be used during the growing period of the corn compared to full irrigation (I100) for water savings and that a water deficit greater than 30% results in considerable grain yield losses. In areas with limited water resources, the moderate water deficit (I70) may be a viable alternative to the I100.
Źródło:: Rocznik Ochrona Środowiska; 2022, 24; 231--245
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Derinkuyu dry bean irrigation planning in semi-arid climate by utilising crop water stress index values
Autorzy:: Uçak, Ali B.
Atılgan, Atılgan
Korytowski, Mariusz
Kocięcka, Joanna
Liberacki, Daniel
Stachowski, Piotr
Saltuk, Burak
Rolbiecki, Roman
Powiązania:: https://bibliotekanauki.pl/articles/28411640.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: dry bean
crop water stress index
CWSI
irrigation time
plant water stress index
Turkey
Opis:: This study was conducted to determine crop water stress index (CWSI) values and irrigation timing in the case of Derinkuyu dry bean (Phaseolus vulgaris L.). In 2017, dry beans were grown as the main crop according to the field design consisting of plots divided into randomised blocks. Irrigation treatment comprised full irrigation (I100) and irrigation issues with three different levels of water stress (I66, I33, I0). This study applied 602 mm of water under the I100 irrigation. The yield of Derinkuyu dry beans was equal to 3576.6 kg∙ha-1 in I100 irrigation. The lower limit (LL) value, which is not necessary for the determination of CWSI, was obtained as the canopy-air temperature difference (Tc - Ta) versus the air vapour pressure deficit (VPD). The upper limit (UL) value, at which the dry beans were wholly exposed to water stress, was obtained at a constant temperature. The threshold CWSI value at which the grain yield of dry beans started to decrease was determined as 0.33 from the measurements made with an infrared thermometer before irrigation in I66 irrigation treatment. As a result, it can be suggested that irrigation should be applied when the CWSI value is 0.33 in dry beans. Furthermore, the correlation analysis revealed a negative correlation between grain yield and crop water stress index and a positive correlation between yield and chlorophyll content. According to variance analysis, significant relationships were found between the analysed parameters at p ≤ 0.01 and p ≤ 0.05.
Źródło:: Journal of Water and Land Development; 2023, 59; 145--152
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Determination of irrigation requirements and crop coefficients using weighing lysimeters in perennial plants
Autorzy:: Treder, J.
Treder, W.
Klamkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/101548.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: ornamental nurseries
evapotranspiration
crop coefficient Kc
weighting lysimeter
automatic irrigation systems
Opis:: The increasing role of perennials in ornamental nurseries requires the elaboration of efficient and accurate irrigation control of this specific group of plants. The experiment was conducted in 2015 in Research Institute of Horticulture, in Skierniewice. The aim of the study was to determine the water requirements and designate the specific evapotranspiration crop coefficient Kc of several perennials, commonly grown in Polish ornamental nurseries. Water requirements of perennials were evaluated using weighing lysimeters. At the same time the recorded climate parameters allowed to calculate the potential evapotranspiration (ET0). Lysimeter measurements and meteorological data allowed determine specific to each species crop coefficient (Kc). The Kc values were determined by dividing ETc by ET0. The obtained results showed that irrespectively of plant growth phase there is strong correlation between climate parameters and real crop evapotranspiration (ETc) of six evaluated perennials: Anemone hupehensis ‚Prinz Heinrich’, Echinacea purpurea ‘Guava Ice’, Hemerocallis, ‘Sandra Elisabeth’, Salvia nemorosa ‘Mainacht’ and Veronica spicata ‘Royal Candles Glory’. The Kc coefficients of all species were changed during the growth season and increased according to plant development and percentage of ground coverage of soil in the lysimeter by leaves. The strong, positive correlation was shown for daily and hourly calculated crop evapotranspiration and potential evapotranspiration (ET0) obtained from weather station. Determination of crop coefficients for ornamental perennials is essential for precise calculation of water doses and irrigation controlling in the nurseries.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, III/2; 1213-1228
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Wpływ 6-letniej uprawy roślin w systemie ekologicznym z nawadnianiem na właściwości chemiczne gleby
The effect of a 6-year plant cultivation in organic system with irrigation on the soil chemical properties
Autorzy:: Trawczyński, C.
Powiązania:: https://bibliotekanauki.pl/articles/336298.pdf
Data publikacji:: 2013
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:: gleba lekka
właściwości chemiczne
płodozmian ekologiczny
ziemniaki
żyto
owies
gryka
łubin żółty
gorczyca biała
seradela
obornik
nawadnianie
azot
fosfor
potas
magnez
mangan
cynk
miedź
badania polowe
light soil
chemical properties
ecological crop rotation
potatoes
rye
oat
buckwheat
yellow lupin
sinapis
bird'sfoot
manure
irrigation
nitrogen
phosphorus
potassium
magnesium
manganese
zinc
copper
field experimentations
Opis:: Celem badań przeprowadzonych w latach 2007-2012 była ocena zmian właściwości chemicznych gleby lekkiej (odczynu, zawartości węgla organicznego, azotu ogólnego, przyswajalnych form fosforu, potasu, magnezu oraz manganu, cynku, miedzi, boru i żelaza) w płodozmianie ekologicznym. Zmianowanie obejmowało następujące gatunki roślin rolniczych: ziemniaki, żyto, owies, gryka i mieszanka strączkowo-zbożowa (łubin żółty z owsem). Źródłem składników pokarmowych dla roślin był obornik stosowany pod ziemniaki (25 t·ha-1) i pod owies (12,5 t·ha-1), przyorywana słoma i biomasa roślin międzyplonowych (peluszka, gorczyca biała, seradela), wapno węglanowe. Na połowie powierzchni doświadczenia prowadzone było nawadnianie roślin w okresach największej wrażliwości roślin na niedobór wody. Nawadnianie zbóż, łubinu z owsem i gryki wykonywano za pomocą zraszaczy, a ziemniaki przy wykorzystaniu linii kroplujących. Próbki glebowe z warstwy 0-20 cm pobierano jesienią każdego roku. Analizy chemiczne gleby wykonywano w laboratorium Stacji Chemiczno-Rolniczej. Stwierdzono poprawę odczynu gleby, ustabilizowany poziom azotu ogólnego oraz tendencję malejącą zawartości węgla organicznego. Zawartość magnezu w kolejnych latach wzrastała, a fosforu i potasu malała. Zawartości przyswajalnych form mikroelementów w glebie były ustabilizowane, natomiast poziom miedzi wzrastał. Stwierdzono wyższy odczyn oraz zawartości magnezu, manganu, cynku i miedzi na obiekcie nienawadnianym. Zawartości fosforu, potasu, żelaza, boru, azotu ogólnego i węgla organicznego w glebie nie różniły się istotnie pomiędzy obiektami nawadnianym i nienawadnianym.
The aim of investigation conducted in the years 2007-2012 was to estimate chemical properties in the light soil (reaction, content of organic carbon, total nitrogen, available forms of phosphorus, potassium, magnesium and manganese, zinc, copper, boron and iron) in organic crop rotation. The crop rotation covered following agricultural plant species: potato, rye, oat, buckwheat and leguminous-cereal mixture (yellow lupine with oat). The source of nutrient components was: manure in dose of 25 t.ha-1 applied before potato cultivation and manure in dose of 12,5 t.ha-1applied before oat cultivation, straw, biomass of intercrop plants (field pea, white mustard, serradella) and carbonate lime. The irrigation was used on a half of the area of experiment field in the highest sensitive period of water deficiency for plants. For irrigation of cereals, yellow lupine with oat and buckwheat by spraying water was applied and for potatoes by using drip lines. The samples were taken from soil layer 0 – 20 cm in autumn every year. The analysis of soil chemical properties was performed in laboratory of Chemical Station. The improvement of soil reaction, stable level of total nitrogen and tendency to decrease organic carbon content were stated. The content of magnesium in following years increased but phosphorus and potassium decreased. The content of available forms of microelements in soil were stable, but level of copper increased. The higher soil reaction and content of magnesium, manganese, zinc and copper on non irrigated object were stated. The content of phosphorus, potassium, iron, boron, total nitrogen and organic carbon in the soil on the object non irrigated in comparison to irrigated one was not significantly different
Źródło:: Journal of Research and Applications in Agricultural Engineering; 2013, 58, 4; 199-203
1642-686X
2719-423X
Pojawia się w:: Journal of Research and Applications in Agricultural Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Water productivity in the biosynthesis of Origanum vulgare L. essential oil and biomass
Autorzy:: Thaner dos Santos, Hugo
Alcarde Sermarini, Renata
Alejandra Moreno-Pizani, Maria
Angélica Alves Marques, Patricia
Powiązania:: https://bibliotekanauki.pl/articles/2163444.pdf
Data publikacji:: 2023-01-31
Wydawca:: Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:: oregano
crop management
water economy
dielec- tric properties
drip irrigation
Opis:: Oregano biomass and essential oil can be used in hu- man and animal nutrition, as well as in medicines’ production. Thus, it is necessary adopting rational water use in oregano pro- duction and accounting this use based on the water productiv- ity index to achieve proper irrigation management in oregano culture. Two experiments were carried out at 4×3+1 factorial ar- rangement, and 4 potential soil water matrices , 3 oregano phe- nological stages and 1 control treatment (soil at field capacity) were assessed. Based on the recorded results, water productivity in oregano culture is influenced by both cultivation season and deficient irrigation throughout the whole cultivation cycle, rather than just at some specific phenological stage. The best water pro- ductivity index based on essential oil biosynthesis was recorded when irrigation was managed at -60.8 kPa soil water matric po- tential (spring/summer). On the other hand, the best water pro- ductivity index due to dry biomass was recorded when irrigation management was carried out at -91.2 kPa (at both seasons)
Źródło:: Polish Journal of Agronomy; 2022, 51; 3-10
2081-2787
Pojawia się w:: Polish Journal of Agronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Optimal precipitation for field-cultivated vegetables
Autorzy:: Rolbiecki, S.
Chmura, K.
Powiązania:: https://bibliotekanauki.pl/articles/61530.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: optimal precipitation
field-cultivated vegetable
vegetable
irrigation
soil classification
temperature
vegetable crop
Opis:: Based on available literature, we collected and presented in tables the values of optimal precipitation (for some field-cultivated vegetables) which are still sometimes used in Poland. We also included a short summary of how they are defined and how the necessary corrections are introduced. Included optimal precipitation values have been developed by: Dzieżycet al., Grabarczyk, Klatt and Press. Therefore, it is possible to define (estimate) precipitation deficits for specific species of vegetables depending on the temperature or soil weight classification (light, medium, heavy) in various regions of Poland. By recognising optimal precipitation, we can plan, design or introduce irrigation and manage it. The formulas developed by Grabarczyk offer an additional possibility of calculating expected average increase (growth) of vegetable crops as a result of irrigation within various precipitation zones in Poland.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2014, IV/3
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Comparison between experimental and estimated crop evapotranspiration in Romania
Autorzy:: Paltineanu, C.
Powiązania:: https://bibliotekanauki.pl/articles/24630.pdf
Data publikacji:: 2005
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: Romania
crop coefficient
irrigation application
evapotranspiration
crop
Źródło:: International Agrophysics; 2005, 19, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Relationships between the De Martonne aridity index and water requirements of some representative crops: A case study from Romania
Autorzy:: Paltineanu, C.
Tanasescu, N.
Chitu, E.
Mihailescu, I.F.
Powiązania:: https://bibliotekanauki.pl/articles/26332.pdf
Data publikacji:: 2007
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: horticultural crop
Romania
water requirement
evapotranspiration
cereal
water conservation
irrigation
Źródło:: International Agrophysics; 2007, 21, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Simulation of the soil water regime for grassland irrigation
Autorzy:: Olszta, W.
Glinski, P.
Powiązania:: https://bibliotekanauki.pl/articles/24667.pdf
Data publikacji:: 1995
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: hydraulic conductivity
soil profile
grassland
moisture retention
Polska
crop production
evapotranspiration
water regime
water flow
climate
irrigation
GRAGRO model
Źródło:: International Agrophysics; 1995, 09, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: CropSyst model for wheat under deficit irrigation using sprinkler and drip irrigation in sandy soil
Model CropSyst do nawodnień pszenicy metodą deszczowania i metodą kroplową na glebach piaszczystych
Autorzy:: Noreldin, T.
Ouda, S.
Mounzer, O.
Abdelhamid, M. T.
Powiązania:: https://bibliotekanauki.pl/articles/293068.pdf
Data publikacji:: 2015
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: crop modeling
CropSyst model
deficit irrigation
drip irrigation
sprinkler irrigation
Triticum aestivum
water saving
model CropSyst
modelowanie plonów
nawodnienia deszczowniane
nawodnienia kroplowe
oszczędność wody
potrzeby nawodnień
Opis:: CropSyst (Cropping Systems Simulation) is used as an analytic tool for studying irrigation water management to increase wheat productivity. Therefore, two field experiments were conducted to 1) calibrate CropSyst model for wheat grown under sprinkler and drip irrigation systems, 2) to use the simulation results to analyse the relationship between applied irrigation amount and the resulted yield and 3) to simulate the effect of saving irrigation water on wheat yield. Drip irrigation system in three treatments (100%, 75% and 50% of crop evapotranspiration – ETc) and under sprinkler irrigation system in five treatments (100%, 80%, 60%, 40%, and 20% of ETc) were imposed on these experiments. Results using CropSyst calibration revealed that results of using CropSyst calibration revealed that the model was able to predict wheat grain and biological yield, with high degree of accuracy. Using 100% ETc under drip system resulted in very low water stress index (WSI = 0.008), whereas using 100% ETc sprinkler system resulted in WSI = 0.1, which proved that application of 100% ETc enough to ensure high yield. The rest of deficit irrigation treatments resulted in high yield losses. Simulation of application of 90% ETc not only reduced yield losses to either irrigation system, but also increased land and water productivity. Thus, it can be recommended to apply irrigation water to wheat equal to 90% ETc to save on the applied water and increase water productivity.
CrosSyst (ang. Cropping Systems Simulation) wykorzystano jako narzędzie analityczne do zarządzania wodą do nawodnień w celu zwiększenia produktywności pszenicy. Przeprowadzono dwa eksperymenty terenowe w celu: 1) kalibracji modelu CropSyst w odniesieniu do pszenicy uprawianej w warunkach nawodnień deszczownianych i kroplowych, 2) zastosowania wyników symulacji do analizy zależności między wielkością nawodnień a plonem i 3) symulacji wpływu oszczędności wody użytej do nawodnień na plon pszenicy. W eksperymentach zastosowano trzy warianty nawodnień kroplowych (100%, 75% i 50% ewapotranspiracji – ETc) i pięć wariantów nawadniania deszczownianego (100%, 80%, 60%, 40% i 20% ETc). Wyniki kalibracji wykazały, że wartość RMSE wynosiła 0,03 i 0,14 t·ha^–1 odpowiednio dla ziarna i biomasy. Model umożliwiał symulację dobowego stresu wodnego w ciągu całego sezonu wegetacyjnego. W wariancie 90% ETc nie tylko stwierdzono zmniejszenie strat plonu w każdym z systemów nawodnień, ale także zwiększenie produktywności wody. Dlatego można zalecić stosowanie dawki 90% ETc w celu oszczędności wody i zwiększenia jej produktywności.
Źródło:: Journal of Water and Land Development; 2015, 26; 57-64
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Harvest index of potato crop grown under different nitrogen and water supply
Współczynnik plonowania ziemniaka w zależności od zaopatrzenia w azot i wodę
Autorzy:: Mazurczyk, W.
Wierzbicka, A.
Trawczynski, C.
Powiązania:: https://bibliotekanauki.pl/articles/46802.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:: drip irrigation
harvest index
nitrogen fertigation
organic nitrogen
mineral nitrogen
potato crop
nitrogen supply
water supply
climate condition
potato plant
Opis:: On the basis of the field experiment carried out at the Experimental Station at Jadwisin (52o29’ N; 21o03’ E), Polish mid-early potato cultivar Triada was grown on sandy loam in years 2004 and 2005 in 6 treatments, which included the application of water and nitrogen: organic (cattle manure) and mineral. Water drip irrigation and nitrogen fertigation were scheduled by the Decision Support System (DSS). Diverse water supplies and organic or mineral nitrogen did not change harvest index (HI) values, which varied between 0.7 and 0.8 at the end of the growing period. Average tuber dry matter yield, about 11.0 t∙ha-1, in both years of the investigation was reached with different HI values: 0.78 for 2004, and 0.73 for 2005. Higher percentage of biomass distributed to tubers was found in 2004, which was characterized by lower cumulative thermal time and global radiation, as well as better water balance in comparison with the growing period of 2005.
Materiał do badań pochodził z doświadczenia polowego przeprowadzonego w IHAR Jadwisin (52o29’ N; 21o03’ E). Średnio wczesna odmiana Triada była uprawiana w latach 2004 i 2005 na 6 kombinacjach zróżnicowanych pod względem ich zaopatrzenia w azot organiczny i mineralny oraz wodę. Dawki wody oraz azotu mineralnego w postaci płynnej (fertygacja) ustalane były przy wykorzystaniu komputerowego programu wspomagania decyzji (DSS). Zróżnicowane zaopatrzenie roślin ziemniaka w azot i wodę nie zmieniło istotnie współczynnika plonowania, którego wartość mieściła się w zakresie od 0,7 do 0,8. W obu latach badań uzyskano zbliżony plon suchej masy bulw, około 11,0 t∙ha-1, przy zróżnicowanym współczynniku plonowania wynoszącym 0,78 w 2004 i 0,73 w 2005 roku. Zwiększona dystrybucja suchej masy do bulw wystąpiła w roku 2004, charakteryzującym się niższą sumą temperatur powietrza i promieniowania całkowitego oraz korzystniejszym bilansem wodnym w porównaniu z okresem wegetacji 2005 roku.
Źródło:: Acta Scientiarum Polonorum. Agricultura; 2009, 08, 4
1644-0625
Pojawia się w:: Acta Scientiarum Polonorum. Agricultura
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

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: 14.

Tytuł:: Impact of the projected climate change on soybean water needs in the Kuyavia region in Poland
Autorzy:: Kasperska-Wołowicz, Wiesława
Rolbiecki, Stanisław
Sadan, Hicran A.
Rolbiecki, Roman
Jagosz, Barbara
Stachowski, Piotr
Liberacki, Daniel
Bolewski, Tymoteusz
Prus, Piotr
Pal-Fam, Ferenc
Powiązania:: https://bibliotekanauki.pl/articles/2048516.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: climate change scenario
crop water needs
evapotranspiration
Glycine max L. Merrill
irrigation
precipitation
protein crops
Opis:: 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.
Źródło:: Journal of Water and Land Development; 2021, 51; 199-207
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Deficit irrigation under water stress and salinity conditions: fao-aquacrop model
Autorzy:: Kale Celik, Sema
Powiązania:: https://bibliotekanauki.pl/articles/2131647.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: aquacrop
crop yield
deficit irrigation
salinity
wheat
Opis:: In this research, estimation potential of Aquacrop model under deficit irrigation and salinity conditions were evaluated for winter wheat grown under arid and semi-arid climates. Five different irrigation strategies and irrigation water salinity levels (0.5, 5, 7.5, 10, 15 dS m-1 ) were taken with the model to estimate deficit irrigation and salinity scenarios. Wheat grain yield, biomass production and canopy cover were simulated under deficit and salinity stresses. According to estimation of the model; the deficit irrigation with water reduction of more than 75 % of full irrigation was applied at growth stages of wheat, revealed the significant reduction in grain yield, biomass and canopy cover as compared with full irrigation practice. The increase in irrigation water salinity caused a significant decrease in grain yield and biomass value. It was compared to the 0.5 dS m-1 salinity level, a low value of 3% was obtained for the 5 dS m-1 salinity level. Yield loss of 7.5, 10 and 15 dS m-1 salinity levels were found to be 18.97%, 42.5% and 85.6% respectively. Also, increasing irrigation water depth in saline treatments resulted in increased grain and biomass yield. For sustainable water management in agriculture area, using simulation model such as Aquacrop is useful tolls to estimate effect of applied water depth and quality of irrigation water on crop yield.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2022, nr I/1; 96-106
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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