Wyniki wyszukiwania - AGRO

1

Weed emergence in different parts of carrot ridge profile

100%

Vanhala P., Kallela M.

Vegetable Crops Research Bulletin

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2002

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tom 57

2

Interspecific competition in barley and oats mixtures depending on soil conditions

88%

Noworolnik K.

Fragmenta Agronomica

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1995

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tom 12

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nr 2

3

The effect of regeneration technology of sward and nitrogen fertilisation on yielding of postboggy meadow

75%

Kulik M., Baryla R., Ciesielski D.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

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2015

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tom 18

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nr 4

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Use of porous tubes for measuring water extraction by roots and simultaneous maintaining of soil water potential in growth chamber experiments

75%

Nosalewicz A., Iijima M., Lipiec J., Krol A.

Acta Agrophysica

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2011

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tom 18

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nr 2[193]

The efficiency of a system based on porous tubes in maintaining soil water potential during water extraction by plants in growth chamber experiment was evaluated. The effect of porous tubes area, soil type and density on water flow through porous tubes as induced by various water potentials was evaluated. The rate of change of soil water potential in response to pressure change depends strongly on the area of ceramic tubes per soil volume. If rapid changes or precise control of soil water potential are needed, the area of ceramic tubes per soil volume should be large. Experiments in which porous tubes are used for maintaining water potential should reach a compromise between plant water demands and permissible disturbance caused by the presence of porous tubes in the soil environment.

5

Changes in the floristic composition and nitrogen concentration in meadow communities and soil under conditions of differentiated fertilization

75%

Niczyporuk A.

Annals of Warsaw Agricultural University. Agriculture

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1999

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nr 35

39-47

6

The balance of phosphorus in the agriculture of Poland

75%

Tujaka A., Terelak H.

Polish Journal of Agronomy

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2012

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nr 09

7

Diatoms as indicators of soil conditions in oil production regions

75%

Dorokhova M. F.

Oceanological and Hydrobiological Studies

|

2007

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tom 36

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nr Suppl.1

8

Effect of pre-treatment and post-treatment of growth hormones [kinetine and abscisic acid] on germination and growth of fodderbeet and seabeet under saline soil conditions

75%

Niazi B. H., Rozema J., Athar M.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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2002

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tom 50

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nr 4

9

Effect of cool soil conditions on hormonal balance in maize roots

75%

Janowiak F., Dorffling K.

Biological Bulletin of Poznań. Supplement

|

1997

|

tom 34

10

Irrigation effects of red beet [Beta vulgaris L.] under sandy soils conditions as affected by rainfall during the critical periods

75%

Rolbiecki S., Rolbiecki R.

Przegląd Naukowy Wydziału Melioracji i Inżynierii Środowiska

|

1998

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nr 15

11

Effect of the soil type on the molecular structure, properties and conditions of occurrence of humous acids

75%

Ksiezopolska A.

Acta Agrophysica

|

2000

|

tom 35

The study presented here concentrates on the characteristics of the humous compounds of humic and fulvic acid fractions of ß-humus, originating from the typologically differentiated soils (podzolic soil and chernozem). The soils were chosen so as to emphasize differences between chemical structure and degree of aromatic nucleus condensation in the humous acids isolated from them. It was found that the structure of the humous substances isolated from the podzolic soil is characterised by the lowest degree of condensation of the aromatic nucleus and the lowest polymerisation, while the humous acids from the chernozem are characterised by the highest degree of condensation of the aromatic nucleus and the strongest polymerisation.

12

Intensity of tillage of wet soil and the effects on soil structural condition

75%

Watts C. W., Dexter A. R.

Bibliotheca Fragmenta Agronomica

|

1997

|

tom 2B

13

Experiments with direct drilling in Hungary - impacts on soil condition, weed infestation and crop yields

75%

Birkas M., Nyarai F., Szalai T.

Bibliotheca Fragmenta Agronomica

|

1997

|

tom 2A

14

Accumulation of macroelements in plants on newly established fallows

75%

Zarczynski P., Sienkiewicz S., Krzebietke S.

Journal of Elementology

|

2008

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tom 13

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nr 3

In spring 1996, four types of fallows were established on good wheat complex soil (classified as IIIa in the Polish soil classification system): sown with oriental goat’s rue (Galega orientalis, Lam.), traditional fallow, seeded with a mixture of oriental goat’s rue (Galega orientalis Lam) and smooth brome (Bromus inermis) and under smooth brome (Bromus inermis). This paper documents the results obtained in 2000-2004. Plant samples (4 x 1 m2) were taken from the fallows once every year at the same plant growth and development stage. The content of macroelements in the plant material was determined using conventional methods. The statistical elaboration of the results was based on the analysis of regression and correlation. The results proved that fallow under perennial plants is superior in activating and cycling nutrients to traditional fallow, overgrown with wild plants. On the other hand, when fallow soil is covered exclusively with a papilonaceous plant (e.g. oriental goat’s rue), it is more likely to experience transfer of nitrates (V) to ground waters. A good solution to this problem could be sowing fields which are set aside as fallows sown with a mixture of oriental goat’s rue and smooth brome. Soil protected by these two plants remains fertile and does not create an ecological risk caused by migrating N-NO3.

15

Methanotrophic bacteria and the impact of soil physical conditions on their activity

75%

Stepniewski W., Rozej A.

International Agrophysics

|

2000

|

tom 14

|

nr 1

16

Performance of winter rye in different agroecological conditions

75%

Sadowski T., Krzeslak S.

Fragmenta Agronomica

|

1995

|

tom 12

|

nr 2

17

Theoretical bases for determination of the complex assessment of the work of soil tillage implements

75%

Nugis E.

Bibliotheca Fragmenta Agronomica

|

1997

|

tom 2B

18

Expert system for selecting tillage techniques suitable to different soil site conditions in Romania

75%

Canarache A., Cojocaru G., Siletchi C.

Bibliotheca Fragmenta Agronomica

|

1997

|

tom 2A

19

Malacocenoses of calcareous and silicaceous dumps in the Swietokrzyskie Mts. on the background of soil and vegetation conditions

63%

Barga-Wieclawska J.

Folia Malacologica

|

1998

|

tom 06

|

nr 1-4

20

Identification of driving factors for presence of endemic species in the Aglasun district of the Mediterranean Region, Turkey

63%

Ozkan K.

Polish Journal of Ecology

|

2012

|

tom 60

|

nr 2

This study was addressed to environmental factors significantly influencing the habitat preferences of endemic species and to obtain a model of their common habitat preferences in the Aglasun district. The district, covering an area of 55,000 hectares, is located in the lakeland subregion of the Mediterrranean region, Turkey. Data were collected from 199 sample plots (20 × 20 m ) and in total 40 endemic taxa was recorded in 124 plots which include minimum one endemic species. Wilcoxon rank-sum statistic and Pearson chisquared tests were used for continuous and categorical explanatory variables, respectively. The factors playing important roles in habitat preferences of endemic species were following: altitude, radiation index, soil texture, landscape position and landform. Generalized additive model was used for modelling the habitat preferences of endemic taxa. To obtain the best model, all significant environmental factors were evaluated by selecting stepwise option. Finally, the best model was obtained (training AUC = O.816, and crossvalidation AUC = 0.800) by using altitude and landform variables.

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