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Wyświetlanie 1-10 z 680
Tytuł:
Efficacy of microelement applied to fibre flax
Autorzy:
Tsyganov, A
Kukresh, S
Khodyankova, S
Duktov, V
Tematy:
boron
environment protection
microelement
fibre flax
zinc
crop quality
crop
crop quantity
Pokaż więcej
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Powiązania:
https://bibliotekanauki.pl/articles/795941.pdf  Link otwiera się w nowym oknie
Opis:
Badania przeprowadzone w północno-wschodniej Białorusi wykazały wysoką efektywność cynku i boru użytych jako nawozy uzupełniające zastosowane dolistnie w fazie tworzenia pędów lnu włóknistego. Nawozy te zwiększyły przeżywalność roślin i obniżyły występowanie chloroz. Ponadto cynk i bor zwiększyły cechy ilościowe i jakościowe zebranego plonu.
Research done on a sward-podzolic light-loamy soil of north-eastern Belarus showed high effectiveness of using on fibre flax ecologically safe complexonants of microelements (zinc and boron), synthesized from polylignols, in foliar supplemental fertilizing during the full-sprout stage. Its usage will help to increase the plant survival up to the harvesting time parallel to decreasing calcium chlorosis lodging and ensure an increase of quality and quantity of fibre flax yield under the condition that soil reaction is close to neutral.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problems of crop rotation experiments in researches of Professor Tadeusz Przybysz
Problemy doświadczeń płodozmianowych w pracach profesora Tadeusza Przybysza
Autorzy:
Bronowicka-Mielniczuk, U.
Wesolowska-Janczarek, M.
Tematy:
crop rotation
experiment
research
Przybysz Tadeusz
mathematical model
crop test
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Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Katedra Zastosowań Matematyki i Informatyki
Powiązania:
https://bibliotekanauki.pl/articles/9831.pdf  Link otwiera się w nowym oknie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sulphur as a fertiliser component determining crop yield and quality
Autorzy:
Skwierawska, M.
Benedycka, Z.
Jankowski, K.
Skwierawski, A.
Tematy:
sulphur
fertilizer component
crop yield
crop quality
macroelement
microelement
organic compound
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Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Powiązania:
https://bibliotekanauki.pl/articles/13931.pdf  Link otwiera się w nowym oknie
Opis:
The aim of this paper was to review 100 years of Polish studies on sulphur fertilisation and its effects on the growth and development of plants, the chemical composition and impact of sulphur compounds on the health of plants, and its fungicidal activity. In the reviewed studies sulphur deficiency generally delayed vegetative growth, caused the dying out of the growth cone, yellow discolouration of the generative and vegetative organs and delayed maturation. Observations of plants have demonstrated that sulphur is essential for normal photosynthetic functions. Plants suffering from a lack or shortage of sulphur had pale green or yellowish, narrow, short and small leaves, and a smaller than normal root system, which was associated with reduced chlorophyll synthesis. The availability of sulphur was found to enatil an improved uptake of nitrogen by plants, thus affecting their quality and optimising the N:S ratio. Fertilisation with sulphur increased the total content of sulphur and sulphates in plants. Findings from studies on the effect of sulphur on the content of macroelements in tested plants are inconclusive. Sulphur used in excess disturbed the ionic balance in plants and indirectly affected the intensity and level of uptake of other nutrients. The results of studies investigating the impact of sulphur on changes in the content of heavy metals were ambiguous and demonstrated either synergistic or antagonistic interactions. Generally, sulphur fertilisation increased the content of glucosinolates in plants and improved their nutritional value. Most studies also showed that sulphur fertilisation improved the disease resistance of plants. Some studies have also demonstrated an increased content of glucosinolates in plants fertilised with sulphur, which stimulated natural resistance to fungal infections.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodiversity of the crop structure on farms participating in the Polish FADN in terms of the requirements of the Common Agricultural Policy
Autorzy:
Madej, Andrzej
Tematy:
crop structure
crop diversity and uniformity
natural environment
Polish FADN
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Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Powiązania:
https://bibliotekanauki.pl/articles/2163437.pdf  Link otwiera się w nowym oknie
Opis:
The crops structure (or cropping pattern) of a farm is a production and economic feature of a farm. In addition, it is an element shaping the biodiversity of rural areas.The paper presents research on the diversity and uniformity of the structure of crops on farms of various production directions and economic size, participating in the Polish FADN network. We use three biodiversity indicators: the number of plant species cultivated on the farm, the Shannon-Wiener index (H’) and the Pielou equality index (J’).The research showed the differences of the biodiversity indicator of the crop structure and its uniformity. The greatest diversity (Shannon-Wiener index) (H’ = 1.59) and uniformity (J’ = 0.71) of crops were found on farms with permanent crops, where the share of arable lands did not exceed 25%. Farms with field crops with a high share of industrial plants and potatoes had lower values of the indicators (H’ = 1.42 and J’ = 0.63, respectively), Different results were recorded on farms with granivorous animals, with the lowest diversity (H’ = 0.93) and uniformity (J’ = 0.42). Those farms had also the highest share of cereals in crop structure (75.5%).In the analysis of farms in terms of economic size, the highest value of the crop structure diversity index (H’ = 1.51) was found on big farms (100≤thous. €<500), with the highest share of industrial plants and vegetables in field cultivation. The lowest diversity, decreasing with the economic size of farms, was characteristic for very small farms (2≤thous. €<8) with the highest (75.3%) share of cereals.Taking into account the requirements of crop diversification applicable under greening policy, the limit values of the indicators of diversity and uniformity of the crop structure were determined for farms with more than 10 ha of arable land. The comparison of the crop structure indexes obtained in the research with their limit values for farms with different production directions showed that for all compared groups of farms the diversity of the crop structure exceeded the limit value. On the other hand, the uniformity of the sown structure was at the level of the limit value only on farms with field crops, and in other cases it did not exceed the limit value. In the case of all groups of farms, depending on the economic size, the diversity of the crop structure exceeded the limit value, and in the case of its uniformity, this applied to farms with an economic size of more than 50 thousand €.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of companion crops and crop rotation systems on some chemical properties of soil
Autorzy:
Orzech, K.
Zaluski, D.
Tematy:
quality of soil
spring spring barley
crop rotation
preceding crop
companion crops
Pokaż więcej
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Powiązania:
https://bibliotekanauki.pl/articles/1192074.pdf  Link otwiera się w nowym oknie
Opis:
The aim of the experiment, conducted in 2005-2011, was to make an assessment of the influence of spring spring barley sowing technology (pure and with companion crops) in crop rotation sequences with 25, 50 and 75% shares of spring spring barley on chemical changes in the 0-20 cm soil horizon. In 2011, spring spring barley (pure sowing) on a stand where spring barley preceded spring barley in a crop rotation system with a 50% spring barley share was found to cause a decline in soil pH and a rise in the soil content of organic carbon (C org.) in comparison with the treatments where companion crops were undersown. Spring barley with the companion crop of Italian ryegrass on a spring barley after spring barley stand raised the pool of C org. in soil relative to the period before the experiment, but the opposite effect was observed when spring barley was undersown with red clover on a stand after potato. In the pure stand, after seven years of the experiment, the highest increase in the soil phosphorus (P) content was noted under the spring barley field following spring wheat, whereas on the plots with the Italian ryegrass companion crop in a sequence of spring barley after spring barley repeated twice the soil was richer in P than prior to the experiment. Once the experiment was terminated in 2011, more potassium (K) was determined in soil under pure spring barley than under spring barley with companion crops. Spring barley with Italian ryegress as a companion crop raised the content of K in soil, but a reverse situation was observed on plots with red clover undersown on a stand of spring barley after potato in comparison with the crop rotation sequences of spring barley after spring wheat and after spring barley. In the case of the soli pH and phosphorus, a positive correlation was noted in the sequence of spring barley undersown with red clover on a stand after spring barley in the crop rotation system with a 75% of spring barley.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Greenhouse gas and ammonia emissions in modelled cereal crop production under Polish agricultural conditions : An example spring barley
Autorzy:
Konieczna, Anita
Koniuszy, Adam
Tematy:
agriculture
air pollution
barley crop
crop technology
GHG emission
NH3 emission
Pokaż więcej
Wydawca:
Instytut Technologiczno-Przyrodniczy
Powiązania:
https://bibliotekanauki.pl/articles/58906949.pdf  Link otwiera się w nowym oknie
Opis:
Based on the analysis of statistical data, the average area under cultivation and average yields of barley in Poland in 2010-2020 were calculated. Barley is one of the most important cereals grown in Poland. Its cultivation area occupied an average of 920,595 ha in these years, with average yields of 3.66 Mg∙ha-1. Barley is a cereal grown mainly as a spring cereal. The average area under spring species in these years accounted for 95% (875,771 ha) of the total area under this cereal, and the average yield of spring varieties was 3.60 Mg∙ha-1. In order to estimate emissions of greenhouse gases (GHG) and ammonia (NH3), the sources of emissions - inorganic fertilisers, fuel consumption - were analysed for selected barley cultivation technologies, differentiated by yield level, and variant model production technologies were developed to obtain projected yields. Emissions were calculated for individual greenhouse gases (N2O, CH4 and CO2) and they were recalculated according to the greenhouse potential of each gas (GWP - global warming potential) to be able to compare the total amount of greenhouse gas emissions for the analysed variants. Greenhouse gas emissions for cultivation technology ranged from 134.53 to 136.48 kg CO2 eq for 1 Mg yield. A more accurate Tier 2 method was used to estimate NH3 emissions, taking into account soil conditions and climate zone. The estimated ammonia emissions from the application of mineral fertilisers were from 0.99 kg to 2.35 kg for 1 Mg yield.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teoreticheskoe issledovanie vlijjanija parametrov poseva na poteri sakharnojj massy v processe otdelenija botvy sakharnojj svekly
Theoretical research of influence of parameters of sowing is on losses of sugar-bearing mass in the process of separation of tops of sugar beets
Autorzy:
Boris, N.
Strel'chuk, A.
Grubiy, V.
Tkachenko, E.
Tematy:
sugar-beet
mathematical model
statistical characteristics
crop
weight loss
root crop
Pokaż więcej
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Powiązania:
https://bibliotekanauki.pl/articles/76895.pdf  Link otwiera się w nowym oknie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drivers of Cereal Production Efficiency Improvement in Kazakhstan – the Case of the Kostanay Region
Autorzy:
Uteulin, Valentin
Zhientaev, Sansyzbay
Tematy:
cereal production
food security
crop yield
food insecurity
cereal crop
wheat
Pokaż więcej
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:
https://bibliotekanauki.pl/articles/2202149.pdf  Link otwiera się w nowym oknie
Opis:
The COVID-19 outbreak has seriously affected the global food security at a time when it was significantly compromised by the effects of climate change and armed conflicts. The impact of the pandemic and quarantine restrictions imposed in response to the deadly virus brought humanity face-to-face with a new threat – that of food insecurity – which contributed to a high social demand for state-of-the-art methods of improving the cereal production efficiency. The aim of the study is to develop and implement a methodological approach to enhancing the cereal production efficiency. The methodology of the study relies on time series that made it possible to determine the main trends in regional cereal production and make projections. Application of the suggested approach in the Kostanay region revealed that this region was among the key cereal producers in the country. In 2019, the region was affected by extreme weather, which caused a sharp decline in cereal production. The present study, however, projects large opportunities for cereal production growth in the region and a significant increase in cereal production in the future. In addition, the paper suggests the following action plan to improve efficiency of the cereal production sector in the Kostanay region: streamlining of state support arrangements for cereal producers; development of affordable crop insurance products; systemic steps to increase cereal yields; development of logistic infrastructure; comprehensive monitoring of cereal production to develop a system of rapid response to changes in the external environment.
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 680

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