Wyniki wyszukiwania

1

Co-ordination of the classification of soils in the lowland areas of Poland and of the former German Democratic Republic

100%

Kowalkowski A., Kopp D., Jager K. D.

Quaestiones Geographicae. Zeszyt Specjalny

|

1992

|

tom 03

2

Determination of phosphate fertilizers effectiveness, in soil solution systems

100%

Fotyma M., Gosek S., Fardeau J. C.

Polish Journal of Soil Science

|

2000

|

tom 33

|

nr 1

3

Sulphur contamination of soils: a threat to agroecosystems

100%

Motowicka-Terelak T., Terelak H.

Polish Journal of Soil Science

|

2000

|

tom 33

|

nr 2

4

Cadmium and lead in Polish soils exposed to contamination

100%

Uminska R.

Annals of Agricultural and Environmental Medicine

|

1994

|

tom 01

|

nr 2

5

Effects of single liming of sandy soils not limed for more than 40 years in the light of results of long-term fertilizing experiment

84%

Szymanska M., Korc M., Labetowicz J.

Polish Journal of Soil Science

|

2008

|

tom 41

|

nr 1

105-114

Polish agriculture, as distinct from the European one, has struggled with the problem of excessive soil acidification for many years. Thus, in times of strong competition on the agricultural market it is important to look for efficient and also cheap methods to ensure an improvement of acidity of Polish soils. The aim of the present study was to determine if the negative effects of acidification were of a durable nature and if these effects could be removed by single applications of relatively small doses of lime. This aim was achieved based on soil material from a long-term fertilizing experiment situated in Łyczyn, central Poland. This experiment comprises of fertilizing treatments constituting all combinations of basic nutrients used in fertilization N, P, K, Ca in only mineral fertilization system and in the system of mineral fertilization with farmyard manure (FYM). The experiment was carried out on the grey-brown podzolic soil. The chosen experimental objects were not limed since 1960 and the yields grown on these treatments were very low. As a result of a single liming, significant increase of potato, spring barley and rye yield was observed. The soil pH increase resulted in statistically proven growth of available and active phospohrus, which is evidence of the soil reserve phosphorus activation. The study results indicate that it is very easy to disturb the ion balance of sandy soil and thus reduce its productivity in unstable nutrient management conditions. On the other hand, it is possible to restore the productive value of soil with little financial input.

6

The origin and age of silt deposits in the Sandomierz Basin

84%

Wojtanowicz J.

Biuletyn Peryglacjalny

|

1998

|

tom 37

7

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Heavy metal pollution of Polish soils

84%

Glinski J., Turski R.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1993

|

tom 400

Sources of heavy metal emission; examples of heavy metal concentrations and distribution in soils; and the consequences of chemical degradation of agricultural land in Poland are disscused in this paper.

8

Diversity and numbers of root-nodule bacteria [Rhizobia] in Polish soils

84%

Martyniuk S., Oron J., Martyniuk M.

Acta Societatis Botanicorum Poloniae

|

2005

|

tom 74

|

nr 1

Using a sand pouch-plant infection method, populations of several species of root-nodule bacteria (rhizobia) were enumerated in eighty soils collected throughout Poland. Rhizobium leguminosarum bv. viciae (symbionts of pea, faba bean, vetch) and R. leguminosarum bv. trifolii (symbionts of clover) were detected in 77 and 76 soils, respectively. Most of these soils contained moderate and high numbers of these species of the rhizobia. Symbionts of beans, R. leguminosarum bv. phaseoli, were assessed in 76 soils; of this number 15 soils had no detectable populations of bean rhizobia and in 40 soils high or moderate numbers of these bacteria were found. Bradyrhizobium sp. (Lupinus), root-nodule bacteria of lupine and serradella, were absent in 19 soils, out of 80 tested, and 34 soils were colonised by high or moderate populations of bradyrhizobia. Sinorhizobium meliloti, rhizobia nodulating alfalfa, were sparse in the examined soils; with 56 soil containing no detectable numbers of S. meliloti and only 6 soils harbouring high or moderate populations of this species. The estimated numbers of the rhizobia in the studied soils were also related to some physical and chemical properties of these soils.

9

Charakterystyki hydrofizyczne gleb brunatnych i płowych Polski wytworzonych ze skał masywnych

67%

Walczak R., Witkowska-Walczak B., Slawinski C.

Acta Agrophysica

|

2001

|

tom 57

10

Three-year studies on competition among Rhizobium leguminosarum bv.viciae for nodulation in Polish and Ukrainian soil

67%

Kowalczuk E., Lis N., Lorkiewicz Z.

Acta Microbiologica Polonica

|

1997

|

tom 46

|

nr 2

11

The surface properties of humic acids extracted from chernozem and grey-brown podzolic soils

67%

Flis-Bujak M., Ksiezopolska A., Stawinski J., Turski R.

International Agrophysics

|

1995

|

tom 09

|

nr 2

Ograniczanie wyników

Co-ordination of the classification of soils in the lowland areas of Poland and of the former German Democratic Republic

Determination of phosphate fertilizers effectiveness, in soil solution systems

Sulphur contamination of soils: a threat to agroecosystems

Cadmium and lead in Polish soils exposed to contamination

Effects of single liming of sandy soils not limed for more than 40 years in the light of results of long-term fertilizing experiment

The origin and age of silt deposits in the Sandomierz Basin

Heavy metal pollution of Polish soils

Diversity and numbers of root-nodule bacteria [Rhizobia] in Polish soils

Charakterystyki hydrofizyczne gleb brunatnych i płowych Polski wytworzonych ze skał masywnych

Three-year studies on competition among Rhizobium leguminosarum bv.viciae for nodulation in Polish and Ukrainian soil

The surface properties of humic acids extracted from chernozem and grey-brown podzolic soils