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1

Environmental effects of spatially variable nitrogen application

100%
Walczykova M., Zagorda M.
Electronic Journal of Polish Agricultural Universities. Series Agricultural Engineering
|
2016
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tom 19
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nr 1
2

Enriched environment effects on visual system development and plasticity

100%
Sale A., Berardi N., Maffei L.
Acta Neurobiologiae Experimentalis
|
2005
|
tom 65
|
nr 5
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Implementing eco-innovations. Determinants and effects

100%
Kowalska A.
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
|
2014
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tom 16
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nr 3
The article aims to analyze the concept of eco-innovations emphasizing the motivations for implementing them, and effects of the eco-innovation process. The author presents the principal definitions of eco-innovations. Various motivations triggering eco-innovations are presented with a focus on regulatory and market factors. Entrepreneurs should be encouraged to adopt eco-innovations because they contribute to sustainable development which is the only way for a world that is challenged by global population growth, climate change, declining non-renewable resource stock, water shortages, and environmental degradation. The effects of eco-innovations can be both positive and negative. The main aim of eco-innovations is to decrease the environmental burdens of entrepreneurial activity. However, a new attitude towards eco-innovations emphasizes the role of economic returns and supplies security. The types of effects of environmentally friendly innovations discussed in the paper include environmental, technological, economic, social, cultural and managerial.
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Agri-environmental effects of changes in agricultural production in Poland

100%
Kopinski J.
Economic and Regional Studies
|
2015
|
tom 08
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nr 3
The paper presents results of analysis of the organizational and production changes occurring in Polish agriculture with concern of regions, and the assessment of potential effects of its influence on the environment with the use of standard agri-environmental indicators. The trends of changes in grounds exploitation, sown areas, animals stocking density and population, mineral fertilization, and gross nitrogen balance for Poland have been determined. The analysis included middle-term perspective of years 2000-2012. The changes occurring in particular regions have been compared in the period of time between 2002-2004 and 2010-2012. It has been established that existing natural factors, but mainly organizational and economic, significantly affect the changes occurring in agricultural sector leading to increasingly developing polarization, production specialization and concentration. The consequences of occurring processes are, regionally diversified, changes of standard agri-environmental indicators, implicating differential strength (pressure) of agricultural activity effects on the environment. The changes may have positive as well as negative consequences for the further working of the sector. There is an onward extensification of organization and agricultural production in the south-eastern provinces. The provinces’ levels of macro components consumption in mineral fertilizers, as well as animals stocking density in livestock buildings, are often twofold. There is an extensification of organization with simultaneous increase in its intensity in livestock production. The consequence of the organization extensification and its simultaneous increase is extension of environmental pressure on the areas of high concentration of livestock production (the Kuyavia-Pomerania, the Łódź and the Wielkopolska provinces) prominent in unbeneficial changes of agri-environmental indicators (e.g. nitrogen balance) resulting in i.a. deterioration in the quality of surface and ground water.
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Effect of genotype x environment on maize root traits

84%
Lipski S.
Zeszyty Problemowe Postępów Nauk Rolniczych
|
2002
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tom 481
|
nr 1
Root system quality is very important for maize growth, development and productivity. The maize breeding, generally, is focused on the performance of aboveground part of plant. It is interesting to compare the relationship between root and shoot of maize studied in divergent conditions. Results of the study of the effects of climatic regimes on variations among maize genotypes were described in paper. The genotype x environment interaction (GEI) are analysed through factorial regression models in order to explicate of the effects of environmental factors on root growth. Chosen statistical method is very helpful tool to evaluate the environmental effect on genetic variability of maize root traits. There was confirmed significant effect of GEI on the root traits. GxE interaction has simply interpretation, because it can be described by the use of linear relations among covariates. It concerns soil and air temperature and water availability (EVTP or rainfall amount).
6

A method study which is forest road construction environmental damages evolution by remote sensing ang GIS

84%
Aricak B., Acar H.
Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa
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2005
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tom 91
113-117
7

Genetic and environmental effects on body weight and fur hight in nutria [Myocastor coypus L.]

84%
Cholewa R., Pawliczak-Maj K., Szwaczkowski T.
Electronic Journal of Polish Agricultural Universities. Series Animal Husbandry
|
2006
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tom 09
|
nr 2
The objectives of the study were to estimate chosen effects (sex, color variety, farm and partitution) on body weight and hair layer hight characters as well as correlations between these traits. Furthemore, heritabilities of traits studied were also estimated. The research was carried on three reproductive farms keeping animals in four basic coat varieties: standard, Sapphire blue, Greenland and white. In the experimental group 919 young nutrias were included and the following steps were executed: – body weight was measured, – hight of underfur and guard hairs. Estimation of heritability was based on unitrait animal model. Standard errors of heritability estimates were approximated based on second order polynomials. The package program DFREML was employed. Correlation coefficients were estimated in the SAS system. Heritability estimates of hair traits were high. The highest estimate (h2 = 0.623) was obtained for lateral guard hairs height. The estimates of other three traits were slightly lower and ranged from 0.49 (lateral underfur) to 0.58 (dorsal underfur). Higher heritability was estimated for fur characters than for body weight. Linear correlations were estimated between all traits. Some of the estimates were close to zero. The highest correlation was recorded for the height of the same hair types.
8
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Fertilization and technological quality of wheat grain

84%
Sadowska J., Blaszczak W., Jelinski T., Fornal J., Borkowska H., Styk B.
International Agrophysics
|
2001
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tom 15
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nr 4
9

Variability in quality traits of traditional processed meat from young bulls - breed and environment effects

67%
Gigli S., Vincenti F., Iacurto M., Saltalamacchia F.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
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2007
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tom 03
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nr 4
309-315
10

Influence of agricultural landscape structure on diversity of insect communities

67%
Ryszkowski L., Karg J., Glura M.
Polish Journal of Ecology
|
2009
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tom 57
|
nr 4
697-713
Environmental effects of the intensification of agricultural production have a profound impact on the ecological carrying capacity of agricultural landscapes for biodiversity. The recent view of the relationship between biodiversity and landscape structural characteristics showed the importance of the vegetation patch composition, heterogeneity and fragmentation of the habitats, their connectivity and scale dimension for biodiversity protection. There are two kinds of habitat/vegetation diversity in the agricultural landscape: crop fields which form a sort of matrix and the network of semi-natural or perennial patches of vegetation like shelterbelts, small patches of forests, meadows or wetlands. The studies were carried in mosaic and uniform agricultural landscape in west Poland. In the mosaic landscape, small areas of arable fields are presented as well as numerous semi-natural ecosystems being refuges for plants and animals (shelterbelts, small water bodies, strips of meadows, channels etc.). In the uniform landscape, large areas of arable fields and small number of refugial ecosystems are presented. The importance of these two kinds of landscape diversity for the family diversity of aboveground insect communities was studied in the agricultural landscape (Turew area) in Poznan region of Western Poland. The landscape is composed of the large (up to 100 ha area) fields (wheat and corn mostly) and a network of shelterbelts (black locust, oak) planted in the past (XIX century) as well as recently (with more than 10 species of trees). The studies were carried up from 1984 to 2005 in the different vegetation patches, wheat fields and shelterbelts, as well as at different distances from the shelterbelts. Quick-trap method, with a base area of 0.25 m² was used to collect the above-ground insects. 10–20 samples were taken in each series. 133 families were recorded in the 1994–2005 period. The number of recorded families decreased with increasing distance from shelterbelt. This decrease is well described by negative exponential equation with fit measured by determination coefficient R² = 0.97. The mean number of families found in wheat field at the 100 m distance shelterbelt was equal to 52.0 and was higher than their number recorded in wheat fields of the uniform landscape which amounted to 40.9. Groups of occasionally occurring and residential families were also studied. In the mosaic landscape the share of occasionally occurring families in total number of recorded families was equal to 0.29 (36 vs 124). In the uniform landscape, contribution of occasionally occurring families was 0.37 (43 vs 115). The landscape structure had negligible effects on occasionally appearing insects, which can be distributed by wind as well as by other factors, or are on a long-distance migration. The main factors counteracting the decline of biodiversity in agroecosystems are the mosaic structure of the landscape and dispersal properties of insects. Refuges occurring in mosaic land scape counterbalance the loss of insect diversity due to intensification of agriculture production. The influence of landscape structure on recurrence of insect families in consecutive years is so strong that combined changes of climate and crop pattern do not seem to have the significant effect.
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