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The influence of intercrop plants and the date of their ploughing-in on weed infestation of root chicory (Cichorium intybus L.) var. sativum (Bisch.) Janch.

100%

Blazewicz-Wozniak M., Konopinski M.

Acta Agrobotanica

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2009

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tom 62

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nr 1

The field experiment was carried out in 2006-2008 in the Felin Experimental Farm (University of Life Sciences in Lublin) on podzolic soil developed from dusty medium loam. Root chicory (Cichorium intybus L.) var. sativum (Bisch.) Janch. cv. Polanowicka was involved in the experiment. The experimental factors were 3 species of intercrop plants: common vetch (Vicia sativa), phacelia (Phacelia tanacetifolia), oat (Avena sativa) and 2 dates of ploughing-in: pre-winter and spring. In total, 26 taxons characteristic for vegetable plantations were identified in chicory weed infestation. Monocarpic species dominated, among which Senecio vulgaris, Chenopodium album, Lamium amplexicaule, Galinsoga ciliata, and Capsella bursa-pastoris were predominant. The date of ploughing-in did not significantly affect the status and size of weed infestation of chicory plots. Short-lived species occurred after pre-winter ploughing-in, while perennial – after spring ploughing-in. The application of intercrops significantly reduced chicory weed infestation as compared to the cultivation with no intercrop. The ploughing-in of Avena sativa biomass appeared to be the most efficient. The intercrop plants reduced the occurrence of Senecio vulgaris and Capsella bursa-pastoris which were the most numerous in the treatment without intercrops. Biomass of Vicia sativa favored the growth of Chenopodium album and Lamium amplexicaule. The secondary weed infestation did not depend on agrotechnical factors applied during the experiment.

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Influence of the date of autumn harvesting on the quality of discharged waters

100%

Kolasa-Jaminska B.

Electronic Journal of Polish Agricultural Universities. Series Fisheries

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2003

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tom 06

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nr 2

The rearing of carp K2-3 in polyculture with a grass- carp, silver carp and European catfish was carried out within 1995- 1997, in six (1995-1996) or in seven (in 1997) variants of ponds differed in stocking densities as well as in kind of feed fed. The objective of the present paper was to verify if the change of harvest date from September into November can affect the quality of discharged waters. Estimation of discharged water quality was made on the basis of following chemical factors: dissolved oxygen, water pH, total suspended matter, chemical oxygen demand CODMn, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen and phosphates. The change of harvest date for 40 days improved markedly the quality of discharged water.

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Geographic information as an element determining the property market

80%

Cellmer R., Czerkies J.

Acta Academiae Agriculturae ac Technicae Olstenensis. Geodaesia et Ruris Regulatio

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1998

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nr 28

The paper presfcnts the features needed for real property assessment and sources of information about them in the Polish conditions. The proposal of on organizational scheme of real property market monitoring system and the activities needed to introduce it are shown as well. The paper also includes suggestions of the system aplication.

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Bakalie

61%

Sztyk A.

Żywność, Żywienie, Życie. Szkoła Główna Gospodarstwa Wiejskiego w Warszawie

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2002

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nr 3

23-24

Ograniczanie wyników

1 Acta Academiae Agriculturae ac Technicae Olstenensis. Geodaesia et Ruris Regulatio

1 Acta Agrobotanica

1 Electronic Journal of Polish Agricultural Universities. Series Fisheries

1 Żywność, Żywienie, Życie. Szkoła Główna Gospodarstwa Wiejskiego w Warszawie

1 Blazewicz-Wozniak M.

1 Cellmer R.

1 Czerkies J.

1 Kolasa-Jaminska B.

1 Konopinski M.

1 Sztyk A.

1 2009

1 2003

1 2002

1 1998

The influence of intercrop plants and the date of their ploughing-in on weed infestation of root chicory (Cichorium intybus L.) var. sativum (Bisch.) Janch.

Influence of the date of autumn harvesting on the quality of discharged waters

Geographic information as an element determining the property market

Bakalie