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Tytuł:
Evaluation of yield reductions in vineyards in connection with the soil nutrient content: the Rumi grape variety
Autorzy:
Gökçen, İ.S.
Powiązania:
https://bibliotekanauki.pl/articles/53830604.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
This study was conducted to determine the soil quality in vineyards where the Rumi grape variety is grown in Kilis Province. Low yields harvested in Kilis in recent years from the Rumi grape variety, which has high economic value, encouraged this study aiming to identify the cause. There is no fertilization in the vineyards submitted to the study, so the search for the reason for low yields was referred to the soil nutrient content. For this purpose, soil samples were taken from the soil in the vineyards at a depth of 0-30 cm. It was determined that the soil reaction varied from 7.19 to 8.34, 16.2% of the examined soils were neutral, and 83.8% were slightly alkaline. As regards the soil texture, 27% of the soils were loamy, 51% were clay loam, and 22% were textured clay. Although the lime content varied from 0.85% to 46.21%, 24.32% of the soil samples were found to be low calcareous, 16.21% were calcareous, 16.21% were found moderately calcareous, 24.32% were high in calcium and 18.91% were very highly calcareous. The organic matter content of the examined soils was determined at the lowest 0.62% and the highest 3.40%, with 5.40% of soils having very low, 35.13% – low, 51.35% – moderate and 8.10% – high organic matter content. The phosphorus content ranged from 1.04 kg da-1 to 6.86 kg da-1, and 29.72% of the soil were found contain very small, 67.56% – small, and 2.70% – moderate amounts of phosphorus. The potassium content ranged from 31.85 to 164 kg da-1, and it was found that 5.40% of the soils had sufficient K content and 94.59% had high K content. Significant relationships have been found between the physical and chemical properties of the soil. As a result of the study, it is recommended to apply farm manure or green fertilization in vineyards where vineyard soils are ideal in terms of texture but organic matter deficiency is determined, and phosphorous fertilization is recommended in the presence of high pH and high lime content. The current fertility of the soil should be maintained and improved over the years.
Źródło:
Journal of Elementology; 2023, 28, 3; 547-560
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth and cropping of two pear cultivars as affected by the type of nursery trees
Autorzy:
Sosna, I.S.
Powiązania:
https://bibliotekanauki.pl/articles/1080405.pdf
Data publikacji:
2016
Wydawca:
Instytut Ogrodnictwa
Tematy:
Pyrus communis
growth
cropping
nursery tree
pear
blooming intensity
yielding
fruit weight
Opis:
The study was conducted in 2001–2012 next to Wrocław (south-western Poland). The purpose of this research was to assess the influence of type of nursery trees of pear cvs ‘Carola’ and ‘Dicolor’ budded on quince S1 rootstock on growth and cropping, as well as fruit quality of two pear cultivars. The trees were planted in the spring of 2001 in 4 replications with 5 trees per plot. Trees were planted in rows with spacing 1.2 × 3.5 m (2381 trees per hectare). Three types of nursery trees, all without feathers, were planted: twoyear-old (3 years in a nursery), one-year-old maidens (2 years in a nursery) and annual grafts (only 1 year in a nursery). Tree canopies were formed as a spindle and were trained in the Güttingen-V system. Until the twelfth year after planting, growth and yield were significantly affected by the type of nursery trees. One-year-old maidens were characterized by the strongest vigor in orchard, while pears planted as twoyear-old trees grew rather weak (especially with ‘Dicolor’ cv.). Planting two-year-old trees didn’t have any clear positive influence on tree cropping in the orchard. The final results of the study proved that trees planted as annual grafts, irrespective of cultivar, yielded significantly worse. The type of nursery trees had no clear influence on mean fruit weight.
Źródło:
Journal of Horticultural Research; 2016, 24, 2; 77-82
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of herbicide-resistance status on populations of littleseed canarygrass (Phalaris minor Retz.) from southern Greece and suggestions for their effective control
Autorzy:
Travols, I.S.
Powiązania:
https://bibliotekanauki.pl/articles/64989.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
In 2010, a survey was conducted in the wheat fields of a typical cereal-producing region of Greece to establish the frequency and distribution of herbicide-resistant littleseed canarygrass (Phalaris minor Retz.). In total, 73 canarygrass accessions were collected and screened in a field experiment with several herbicides commonly used to control this weed. Most of the weed populations were classed as resistant (or developing resistance) to the acetyl-CoA varboxylase (ACCase)-inhibiting herbicide diclofop, while resistance to clodinafop was markedly lower. The results of the pot experiments showed that some of the canary populations were found to have a very high level of diclofop resistance (resistance index up to 12.4), while cross resistance with other herbicides was also common. The levels of resistance and cross resistance patterns among populations varied along with the different amounts and times of selection pressure. Such variation indicated either more than one mechanism of resistance or different resistance mutations in these weed populations. The population which had the highest diclofop resistance level, showed resistance to all aryloxyphenoxypropinate (APP) herbicides applied and non-ACCase inhibitors. Alternative ACCase-inhibiting herbicides, such as pinoxaden remain effective on the majority of the tested canarygrass populations, while the acetolactate synthase (ALS)-inhibiting herbicide mesosulfuron + iodosulfuron could also provide some solutions. Consequently, there is an opportunity to effectively control canarygrass by selecting from a wide range of herbicides. It is the integration of agronomic practices with herbicide application, which helps in effective management of P. minor and particularly its resistant populations.
Źródło:
Journal of Plant Protection Research; 2012, 52, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zachód stawia na opozycję : Waszyngton i Warszawa sądzą, że tylko przy ich pomocy na Białorusi można zbudować prawdziwą demokrację
Autorzy:
Czieriepachin, Wiktor.
Powiązania:
Forum 1998, nr 20, s. 14
Współwytwórcy:
(is). Tłumaczenie
Data publikacji:
1998
Tematy:
Organizacja Bezpieczeństwa i Współpracy w Europie polityka Białoruś
Polityka zagraniczna
Opis:
Tł. art. zamieszcz. w "Niezavisimaja Gazeta". -- 1998, 16 IV.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Source enhanced linear prediction of speech incorporating simultaneously masked spectral weighting
Autorzy:
Lukasiak, J.
Burnett, I.S.
Powiązania:
https://bibliotekanauki.pl/articles/309562.pdf
Data publikacji:
2001
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
linear prediction
psychoacoustics
masking
LPC
Opis:
Linear prediction is the cornerstone of most modern speech compression algorithms. This paper proposes modifying the calculation of the linear predictor coefficients to incorporate a weighting function based on the simultaneous masking property of the ear. The resultant prediction filter better models the perceptual characteristics of the source and results in the removal of more perceptually important information from the input speech signal than a standard LP filter. When employed in a low rate speech codec the net effect is an improvement in subjective quality, with no increase in transmission rate and only a modest increase in computational complexity.
Źródło:
Journal of Telecommunications and Information Technology; 2001, 3; 15-23
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nietoperz to nasz znak : poufna rozmowa z oficerami GRU (Gławnoje Razwiedywatielnoje Uprawlenije -- Główny Zarząd Wywiadowczy) [Nikołajem i Aleksiejem]
Powiązania:
Forum 1998, nr 45, s. 10-11
Współwytwórcy:
Żylin, Aleksander. Opracowanie
(is). Tłumaczenie
Data publikacji:
1998
Tematy:
GRU (wywiad wojskowy)
Wywiad wojskowy Rosja
Informacja wojskowa (służba) Rosja
Opis:
Fot.; Tł. art. zamieszcz. w "Moskovskije Novosti". -- 1998, 30 VIII.
Dostawca treści:
Bibliografia CBW
Artykuł
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