Temat: soil drought - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analiza susz atmosferycznych i glebowych jako kryterium potrzeby nawodnień w danym regionie
Analiz atmosfernykh i pochvennykh zasukh kak kriterijj neobkhodimosti oroshenija
Analysis of atmospheric and soil drought as a criterion of irrigation needs
Autorzy:: Zakowicz, S.
Hewelke, P.
Powiązania:: https://bibliotekanauki.pl/articles/795923.pdf
Data publikacji:: 1990
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: analiza
susza glebowa
susza atmosferyczna
nawodnienia
regiony
analysis
soil drought
atmospheric drought
irrigation
region
Opis:: В работе представлена методика определения необходимости орошения в данном районе страны на основании анализа атмосферных и почвенных засух, а также определения допустимого промежутка времени между атмосферными осадками или отдельными поливами (Тmax). Методика позволяет также определять для данного периода Тmax величины снижения урожая и возможности экономического анализа для оценки районирования орошения сельскохозяйственных культур.
The methodics of determination of irrigation needs in a selected region of the country on the basis of the atmospheric and soil drought analysis as well as the method of calculation of the maximum missible period between the consecutive precipitation sums of irrigation rates (Tmax) is presented in the paper. The presented methodics provides facilities for estimation of the drop of yiled increments for the given value of Tmax which consequently enables to perform the economic analysis and to estimate the regionalization of the irrigation needs of crops.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1990, 387
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Influence of Drainage Devices and Post-Bog Soil Changes on Water Retention in Drained Lower Supraśl River
Autorzy:: Kiryluk, Aleksander
Powiązania:: https://bibliotekanauki.pl/articles/125025.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: soil drought
retention of water
drainage devices
post-bog soils
irrigation
Opis:: Water shortages occurring in the natural environment are the result of progressing climate changes, including the decreasing amount of atmospheric precipitation. In Poland, during the vegetation periods, droughts occur every 4-5 years, which causes losses in the field production and in forest communities. Reducing the negative effects of drought is possible by retention of water within a catchment. This method of improving the water balance has been included in the provisions of the Water Framework Directive and Water Law. On the meliorated valley objects, there are melioration devices that enable regulation of the moisture content, including irrigation during periods of drought. Drainage ditches can also retain water in the early spring periods with high flows in rivers. The studies carried out on the Lower Supraśl river site showed that about 40% of drainage devices used for water damming (dams and ramps), as well as for water distribution (feeders and detailed ditches) are not technically efficient and do not fulfil the function of moisture content regulation. Fibrous-muck soils occurring on this object, due to the lack of rainfall and irrigation, reduced the water retention capacity by approximately 30%. Modernization and reconstruction of drainage devices on valley objects will enable increasing the retention within individual catchments.
Źródło:: Journal of Ecological Engineering; 2019, 20, 8; 120-128
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Występowanie okresów z niedostateczną wilgotnością gleby w Polsce na podstawie ocen szacunkowych
Vybrannye periody s deficitom vlazhnosti pochvy v Polshe na osnove ocenok
Selected periods with soil moisture deficiencies in Poland on the basis of estimations
Autorzy:: Przedpelska, W.
Powiązania:: https://bibliotekanauki.pl/articles/802352.pdf
Data publikacji:: 1990
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: wystepowanie
okres niedostatecznej wilgotnosci gleby
oceny szacunkowe
Polska
occurrence
soil drought
evaluation
Polska
Opis:: Рассматривались повтор и мости в Польше декад с дефицитом влажности почвы в период апрель - октябрь за 1966/1967 - 1980/1981 годы. Основой анализа были оценки состояния увлажнения верхнего слоя почвы, проводимые наблюдателями агрометеорологической сети Института метеорологии и водного хозяйства. Установлено, что недостаточное увлажнение почвы имеется на территории всей страны. Оно выступает во всех декадах анализируемого периода, но чаще встречается в июле-сентябре. Наибольшая опасность появления почвенных засух существует в западных, северо-западных и северных районах. С 30-40% а местами даже до 50% декад в июле и августе районах недостаточным увлажнением почвы.
Repeatability of ten days with moisture deficiency in the period April-October of 1966/67-1980/81 has been analyzed on the basis of observations of the moistening degree of the upper soil layer, carried out by observers of the agrometeorologic natework. It has been proved that an insufficient soil moisture occurs all over the Poland’s territory. It can be observed in all ten-day intervals of the period analyzed, but most often in July-September. The greatest threat of soil droughts occurs in western, north-western and northern regions. In these regions an insufficient moistening of soil occurred in 30-40% and over 50% of ten das in July and August of the period analyzed.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1990, 387
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Different effects of soil drought on soluble carbohydrates of developing Lupinus pilosus and Lupinus luteus embryos
Autorzy:: Piotrowicz-Cieslak, A I
Michalczyk, D.J.
Adomas, B.
Gorecki, R.J.
Powiązania:: https://bibliotekanauki.pl/articles/57870.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: plant physiology
carbohydrate
cyclitol
raffinose family oligosaccharide
soil drought
soil humidity
seed
Lupinus luteus
Juno cultivar
Lupinus pilosus
drought
lupin
embryo
galactosyl cyclitol
Opis:: The aim of this study was to compare the accumulation of soluble carbohydrates in embryos of two lupin species: cultivated Lupinus luteus (cv. Juno) and wild L. pilosus, developing on plants grown under normal soil humidity and soil drought. All analysed seeds accumulated soluble carbohydrates, including: monosaccharides, sucrose, cyclitols, galactosyl cyclitols and raffinose family oligosaccharides. Soil drought caused a nearly two-fold increase of soluble carbohydrate contents in both species. L. pilosus embryos however, responded to water deficiency by increasing the accumulation of cyclitols and galactosyl cyclitols, whereas L. luteus embryos enhanced accumulation of cyclitols and raffinose family oligosaccharides.
Źródło:: Acta Societatis Botanicorum Poloniae; 2007, 76, 2
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Antioxidant defence in maize cultivars triggered by the two-spotted spider mite attack and soil drought – a comparative study
Autorzy:: Czapla, A.
Grudkowska, M.
Miazek, A.
Zagdanska, B.
Kielkiewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/80869.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
antioxidant defense
maize cultivar
two-spotted spider mite
Tetranychus urticae
soil drought
oxidative stress
ascorbate peroxidase
catalase
glutathione reductase
peroxidase
polyphenol oxidase
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Wplyw stresu suszy na rozwoj i plonowanie dwoch genotypow bobiku
Autorzy:: Podlesny, J
Kocon, A
Powiązania:: https://bibliotekanauki.pl/articles/807888.pdf
Data publikacji:: 2006
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: wilgotnosc gleby
genotyp
rozwoj roslin
wzrost roslin
kwitnienie
zawiazywanie strakow
plonowanie
susza glebowa
fotosynteza
bobik
soil moisture
genotype
plant development
plant growth
flowering
pod setting
yielding
soil drought
photosynthesis
faba bean
Opis:: Badania prowadzono w Instytucie Uprawy Nawożenia i Gleboznawstwa w Puławach, w wazonach Mitscherlicha. Czynnikiem I rzędu były dwa genotypy bobiku: ‘Nadwiślański’ - typ tradycyjny i Tim’ - typ samokończący, a czynnikiem II rzędu była wilgotność gleby: 30, 50 i 70% p.p.w, którą zróżnicowano w okresie kwitnienie-dojrzewanie. Zmniejszenie zawartości wody w glebie silnie ograniczało rozwój i plonowanie obydwu odmian bobiku. Bobik odmiany Tim’ był bardziej wrażliwy na niedobór wody w glebie niż odmiana 'Nadwiślański’. Obniżka plonu nasion uzyskanego z roślin rosnących w warunkach niższej wilgotności gleby wynikała z mniejszej obsady strąków na roślinie i mniejszej liczby nasion na roślinie.
The study was conducted in Mitscherlich pots at the Institute of Soil Science and Plant Cultivation in Puławy. The first row factor in this experiment were two morphologically different cultivars of faba bean: ‘Nadwiślański’ - traditional type and ‘Tim’ - determinate type, and the second row factor was the soil moisture: 30, 50 and 70% field water capacity, which was differentiated in the period from flowering to maturity. The decreased water content of the soil strongly reduced both the development and yielding of faba bean. Faba bean ‘Tim’ cultivar was more susceptible to water deficit in the soil than was ‘Nadwiślański’ cultivar. The reduction of seed yield, found for plants grown under the conditions of low soil moisture, resulted from a lower pod density per plants as well as a lower number of seeds per plant.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 2006, 509; 125-131
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Monitoring of the Dendrometric Changes Influenced by Soil Water Content
Autorzy:: Kišš, Vladimír
Bárek, Viliam
Novotná, Beáta
Tátošová, Lucia
Powiązania:: https://bibliotekanauki.pl/articles/123039.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: drought
dendrometer
irrigation
soil moisture
Opis:: Drought is generally associated with the persistence of low precipitation amount, decreased soil moisture and water availability relative to the normal levels in a designated area. The effects of drought, range from the morphological to molecular levels, and are evident at all phenological stages of the plant growth, at whatever stage the water deficit occurs. Determination of the surface water demands for irrigation purposes comes out from the assumption of hydrologic processes stationarity. This paper shows our research prerequisite that water stress participates in an important part on the volume changes of over ground parts, which is predictive for the irrigation demand. Malus domestica var. Yellow Transparent was chosen for the measurement of volume changes of the surface plant parts. Our measurements were realised by the Diameter dendrometer small (DD-S) from 24.08. to 13.09.2017. One tree was irrigated by the dose of 50 mm. We compared the dendrometric changes to soil moisture and rainfall on both irrigated and non-irrigated trees. The experiment showed the differences between the irrigated apple tree (the diameters of the branches fluctuated between 11.9 and 12.1 mm) and the non-irrigated apple tree (the diameter of the branches increased after three-day rain from 8.35 to 8.61 mm), in order to determine the water stress of plants based on dendrometric changes and optimize irrigation during the drought period.
Źródło:: Journal of Ecological Engineering; 2019, 20, 1; 34-38
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The Relationships of Texture and Hydrophysical Properties in Soil Profiles Under Selected Exotic Trees in the Context of Climate Change in Central Europe
Autorzy:: Polláková, Nora
Šimanský, Vladimír
Jonczak, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/1838319.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: available water
drought
porosity
soil aeration
soil texture
wilting point
Opis:: Suitable soil and environmental conditions are the main prerequisites for successful growth of plants. Generally, all soil properties are substantially affected by textural composition. Therefore, the objective of the study was to test the interrelationships between particle size distribution and such physical soil properties, which usually predetermine the survival/death of plants, since they significantly affect the content and availability of water and air. Textural composition and physical soil properties were studied in profiles under monocultures of selected exotic trees in Arboretum Mlyňany, Slovakia. The results showed that medium-textured dominated in topsoils, whereas heavy-textured classes were dominant in luvic and stagnic horizons. Evaluation of entire profiles had confirmed standard, expected relationships between the individual grain fractions and soil physical properties. However, differences have occurred when the correlations between texture and physical properties in individual horizons were evaluated. Considering entire soil profiles, increased sand content significantly supported drainage of rainwater and soil aeration; silt contributed to increase the total porosity and aeration as well as available water capacity; clay contributed to the decrease in the available water capacity, total, and particularly coarse porosity and aeration, and to rise water retention, as well as the values of the wilting point. The results showed silt as key fraction providing suitable hydrophysical properties for the survival and growth of trees introduced in Arboretum. In compacted luvic and stagnic horizons, silt was significantly involved in the formation of total, and particularly coarse porosity and thereby increase soil aeration, while conversely, in loose topsoils just silt fraction significantly contributed to the reduction of coarse pores and increase of fine capillary pores and therefore water retention. In loose eluvial horizons, the silt contributed to significant increases in capillary porosity and water availability, which is essential in terms of meeting the plant needs.
Źródło:: Journal of Ecological Engineering; 2021, 22, 6; 244-252
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The Relationships of Texture and Hydrophysical Properties in Soil Profiles Under Selected Exotic Trees in the Context of Climate Change in Central Europe
Autorzy:: Polláková, Nora
Šimanský, Vladimír
Jonczak, Jerzy
Powiązania:: https://bibliotekanauki.pl/articles/1838349.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: available water
drought
porosity
soil aeration
soil texture
wilting point
Opis:: Suitable soil and environmental conditions are the main prerequisites for successful growth of plants. Generally, all soil properties are substantially affected by textural composition. Therefore, the objective of the study was to test the interrelationships between particle size distribution and such physical soil properties, which usually predetermine the survival/death of plants, since they significantly affect the content and availability of water and air. Textural composition and physical soil properties were studied in profiles under monocultures of selected exotic trees in Arboretum Mlyňany, Slovakia. The results showed that medium-textured dominated in topsoils, whereas heavy-textured classes were dominant in luvic and stagnic horizons. Evaluation of entire profiles had confirmed standard, expected relationships between the individual grain fractions and soil physical properties. However, differences have occurred when the correlations between texture and physical properties in individual horizons were evaluated. Considering entire soil profiles, increased sand content significantly supported drainage of rainwater and soil aeration; silt contributed to increase the total porosity and aeration as well as available water capacity; clay contributed to the decrease in the available water capacity, total, and particularly coarse porosity and aeration, and to rise water retention, as well as the values of the wilting point. The results showed silt as key fraction providing suitable hydrophysical properties for the survival and growth of trees introduced in Arboretum. In compacted luvic and stagnic horizons, silt was significantly involved in the formation of total, and particularly coarse porosity and thereby increase soil aeration, while conversely, in loose topsoils just silt fraction significantly contributed to the reduction of coarse pores and increase of fine capillary pores and therefore water retention. In loose eluvial horizons, the silt contributed to significant increases in capillary porosity and water availability, which is essential in terms of meeting the plant needs.
Źródło:: Journal of Ecological Engineering; 2021, 22, 6; 244-252
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Parameterization of drought vulnerability assessment in agriculture
Autorzy:: Łabędzki, L.
Powiązania:: https://bibliotekanauki.pl/articles/101351.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: drought
agriculture
vulnerability
crop water deficit
soil
Opis:: The aim of the present study has been an attempt at the assessment of agricultural drought vulnerability. The paper presents the proposal of the methodology and the preliminary results. The assessment is performed for the voivodships and the regions in Poland and takes into account two factors: the crop water deficit in the growing season and the share of light and very light soil area in the overall arable soil area. The vulnerability is evaluated for five crops with the largest area of cultivation in Poland. A differentiation of vulnerability to drought between crops and a spatial differentiation for each crop are determined. A spatial differentiation is similar for all crops. The most vulnerable region is the central and central-western part of Poland. The results indicate that late potato is the most vulnerable crop to be damaged by drought among all studied crops, whereas winter rape is the least vulnerable crop.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, II/1; 535-544
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Reakcja odmian i diallelicznych mieszancow pszenicy ozimej na dzialanie suszy glebowej i obnizona zawartosc azotu. Czesc II.Dziedziczenie cech korzeni
Autorzy:: Gorny, A G
Grzesiak, M T
Grzesiak, S
Powiązania:: https://bibliotekanauki.pl/articles/796658.pdf
Data publikacji:: 2006
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: niedobor pierwiastkow
azot
pszenica ozima
dlugosc korzenia
mieszance dialleliczne
korzenie
sucha masa
niedobor azotu
rozgalezianie sie korzeni
susza glebowa
dziedziczenie cech
odmiany roslin
element deficiency
nitrogen
winter wheat
root length
diallel hybrid
root
dry mass
nitrogen deficiency
branching
soil drought
trait inheritance
plant cultivar
Opis:: Dziedziczenie szeregu morfologicznych cech systemu korzeniowego analizowano w diallelicznym układzie krzyżowań (Ps + F₂s) pszenicy ozimej. W czynnikowym doświadczeniu wazonowym, przeprowadzonym w fitotronowej komorze wzrostowej, rośliny rosły w specjalnych wazonach (tzw. 'root box’) w warunkach kontrolnych (K), suszy (D) i obniżonego zaopatrzenia w azot (N). W stadium krzewienia (stadium 21/22 Zadoksa) korzenie oddzielono od podłoża przez delikatne wymywanie, a ich cechy zmierzono przy pomocy specjalnego systemu pomiarowego. Efekty GCA okazały się najistotniejsze dla wariancji większości cech, z wyjątkiem całkowitej długości korzeni (TLR) i stopnia rozgałęzienia korzeni (BRA), wariancji których była głównie związana z efektami SCA. W przypadku niektórych cech, a zwłaszcza suchej masy korzeni (RDM), stosunku R : S i specyficznej długości korzeni (SRL) w warunkach suszy, zanotowano indukowany stresem wzrost proporcji GCA/SCA. Zastosowane niedobory wody i azotu na ogół nie wpływały na znak i zakres efektów GCA, ale istotność takich interakcji GCA- typ podłoża stwierdzono dla TLR i długości korzeni bocznych. Rzadziej notowane interakcje SCA-typ podłoża dotyczyły głównie TLR, a w mniejszym stopniu - stosunku R : S i długości korzeni bocznych. Analiza genetycznych komponentów wariancji wykazała, że efekty addytywnego działania genów miały decydujące znaczenie dla długości korzeni bocznych typy L i TLR, natomiast nieaddytywne działanie genów - dla RDM, SRL i BRA. Odziedziczalność w wąskim sensie większości cech korzeni była bardzo niska (0,01-0,34) i tylko TLR oraz długość korzeni bocznych typy L okazały się cechami o wyższej odziedziczalności (0,27-0,59 i 0,36-0,82). Ten znaczący udział nieaddytywnego działania genów może utrudniać selekcję zmierzającą do poprawy sposobu ukorzeniania się wśród mieszańcowego potomstwa badanej kolekcji pszenicy ozimej.
Inheritance of several morphological characteristics of the root system was investigated in a diallel crossing set (Ps + F₂s) of winter wheat. In a factorial pot-experiment done in a fully conditioned growth cabinet, plants were grown in special pots ('root box’) under the control (K), drought (D) and low nitrogen (N) conditions. At the 21/22 Zadoks’ stage, roots were separated from the growth medium by careful washing and measured using a image analysis system. GCA effects were found to exhibit a prevailing importance for the variance in most characters, excepting for the total length of root systems (TLR) and degree of root branching (BRA) for which a preponderance of SCA effects appeared. For some characters, GCA/SCA ratios tended to increase under stress, especially for the root dry matter (RDM), R : S ratio and specific root length (SRL) under drought stress. Usually, the used water and N shortages did not affect the sign and magnitude of GCA effects, but such significant GCA-treatment interactions were noticed for TLR and length of laterals. The SCA-treatment interactions were less common and altered the sign and magnitude of SCAs mainly in TLR, and less frequently - those in R : S ratio and length of laterals. Analysis of genetic components of variation indicated that additive gene effects were of major importance for the length of L-laterals and TLR, while RDM, SRL and BRA were greatly influenced by non-additive gene action. For most root characters, extremely low narrow-sense heritabilities (0.01-0.34) were found, and only TLR and length of L-laterals exhibited higher heritabilities (0.27-0.59 and 0.36-0.82). The considerable contribution of non-additive gene action should not facilitate selection efforts to improve rooting capacity among the hybrid progenies of the examined winter wheat collection.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 2006, 509; 111-124
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: The impact of drought stress on the production of spring barley in Poland
Autorzy:: Bartosiewicz, Beata
Jadczyszyn, Jan
Powiązania:: https://bibliotekanauki.pl/articles/2147736.pdf
Data publikacji:: 2021-06
Wydawca:: Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:: spring barley
grain yield
soil retention
drought
stress
climate change
Opis:: Recently, the incidence of droughts in Poland has clearly increased. This is a result of the observed climate change, which, according to the most likely scenarios, will have a signifi-cantly perceptible influence on agricultural production. Amongst the observed changes, particularly noticeable is the conspicuous tendency towards an increase in air temperature, solar radiation and wind speed, along with the decrease in precipitation inthe spring–summer period, i.e., in the period of peak water demand. The short growing season and the shallow root system make spring barley sensitive to drought stress. Both the quantity and quality of the yield of this crop depend on the volume and distri-bution of rainfall during the growing season. The water storage capacity of the soil and the plant genotype are equally important. Studies on the influence of drought on the spring barley yields carried out in various scientific centres have demonstrated that the best yields of this cereal are obtained on loamy and silty soils, while the size of the yield is largely limited by water shortage at the end of the vegetative development stage and the beginning of the formation of generative organs. The aim of this work was to summarize the current state of knowledge on the impact of drought stress on the production of spring barley in Poland and to indicate measures compensating for yield losses in drought con-ditions.
Źródło:: Polish Journal of Agronomy; 2021, 45; 3-11
2081-2787
Pojawia się w:: Polish Journal of Agronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Effects of tillage alteration on soil water content, maize crop water potential and grain yield under subtropical humid climate conditions
Autorzy:: Chen, J.
He, Y.
Li, P.
Powiązania:: https://bibliotekanauki.pl/articles/2082993.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: soil penetration resistance
occasional deep tillage
no-till
seasonal drought
Opis:: Seasonal drought stress is common in farmland even under humid climate conditions. Low soil water content and high penetration resistance in clayey soil are both factors that limit crop growth, which is significantly affected by tillage. In a twoyear (2014-2015) field experiment conducted in Hubei, China, the effects of conventional tillage, along with occasional deep tillage and no-till, on the soil water content and penetration resistance values of red soil and on the crop water potentials of the maize crop (Zea mays L.) were tested. Compared to conventional tillage, deep tillage reduced the difference in the soil water characteristic curve between 0-40 cm soil layers, resulting in a more loose and homogeneous topsoil. The deep tillage significantly (p<0.05) decreased soil penetration resistance, increased soil-available water content and soil water content during the dry period, promoted an increase in maize root density by 11.4~31.6%, and increased the water potential of the maize root and leaf during most growth stages. In contrast, the effect of no-till was opposite to that of deep tillage, reducing maize grain yield by 25.3~26.3%. The results confirmed that no-till is not appropriate for the clayey red soil but rather that tillage is needed. This suggests that occasional deep tillage is helpful in mitigating seasonal crop drought stress under the conditions of a humid climate.
Źródło:: International Agrophysics; 2021, 35, 1; 1-9
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Spatial and Temporal Variability of Moisture Condition in Soil-Plant Environment using Spectral Data and Gis Tools
Autorzy:: Grzywna, H.
Dąbek, P. B.
Olszewska, B.
Powiązania:: https://bibliotekanauki.pl/articles/123280.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: drought
soil moisture
NDVI
Sentinel-2
satellite data
remote sensing
Opis:: The studies on agricultural droughts require long-term atmospheric, hydrological and meteorological data. On the other hand, today, the possibilities of using spectral data in environmental studies are indicated. The development of remote sensing techniques, increasing the spectral and spatial resolution of data allows using remote sensing data in the study of water content in the environment. The paper presents the results of the analysis of moisture content of soil-plant environment in the lowland areas of river valley using the spectral data from Sentinel-2. The analyses were conducted between February and November 2016. The spectral data were used to calculate the Normalize Differential Vegetation Index (NDVI) which provided the information about the moisture content of the soil-plant environment. The analyses were performed only on grasslands, on 22 objects located in the research area in the Oder river valley between Malczyce and Brzeg Dolny, Poland. The NDVI values were correlated with the hydrological and meteorological parameters. The analyses showed spatial and temporal variability of the moisture conditions in the soil-plant environment showed by the NDVI variability and existence some relationships between the climatic and spectral indices characterizing the moisture content in the environment.
Źródło:: Journal of Ecological Engineering; 2018, 19, 6; 56-64
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Reconstruction of retention capacity of small river basins as a protection measure against floods and droughts
Autorzy:: Mioduszewski, W.
Powiązania:: https://bibliotekanauki.pl/articles/25974.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: flood
soil retention
Polska
protection
river flow
drought
water retention
small river
Źródło:: International Agrophysics; 1998, 12, 4
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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