Reaction of some winter wheat varieties to cultivation in the organic system
Jarosław Stalenga
iung@iung.pulawy.plZakład Systemów i Ekonomiki Produkcji Roślinnej, Instytut Uprawy Nawożenia i Gleboznawstwa — PIB, Puławy (Poland)
Krzysztof Jończyk
Zakład Systemów i Ekonomiki Produkcji Roślinnej, Instytut Uprawy Nawożenia i Gleboznawstwa — PIB, Puławy (Poland)
Abstract
The aim of investigations was to evaluate the reaction of some winter wheat varieties to cultivation in the organic crop production system. The studies included analyses of the following features: yielding, dry matter accumulation, nitrogen nutrient status and the Leaf Area Index (LAI). The data came from the field experiment, which was set up in 1994 at the Experimental Station in Osiny (Lublin province) to compare different crop production systems. The investigations were carried out in 2003–2005 in the winter wheat field. Six varieties of common winter wheat (Mewa, Roma, Kobra, Sukces, Zyta and Korweta) and one variety of spelt winter wheat (Schwabenkorn) were evaluated. In 2005, three “old” winter wheat varieties (Ostka Kazimierska, Kujawianka Więcławicka and Wysokolitewka Sztywnosłoma) were additionally included. The highest yields were recorded for the varieties Mewa (4.27 t/ha) and Sukces (4.21 t/ha). The common varieties yielded by about 2 t/ha higher than the “old” ones. Var. Zyta and spelt wheat accumulated the largest amounts of dry matter. The “old” winter wheat varieties and spelt wheat were characterised by the highest LAI values. Variety Mewa was found to be in the best nitrogen nutrient status. This variety seems to be the most useful in organic farming. Also vars. Zyta and Sukces and spelt wheat, seem to have good perspectives. The efficiency of nitrogen utilization seems to be an interesting test to examine the usefulness of cereal varieties in organic farming.
Keywords:
organic farming, variety selection, winter wheatReferences
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Authors
Jarosław Stalengaiung@iung.pulawy.pl
Zakład Systemów i Ekonomiki Produkcji Roślinnej, Instytut Uprawy Nawożenia i Gleboznawstwa — PIB, Puławy Poland
Authors
Krzysztof JończykZakład Systemów i Ekonomiki Produkcji Roślinnej, Instytut Uprawy Nawożenia i Gleboznawstwa — PIB, Puławy Poland
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