Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Abstract
A strict field experiment was conducted at the Experimental Farm Uhrusk, a part of the Agricultural University in Lublin in the years 1995-1997. The experiment was set on the podzolic soil formed from coarse sandy soils, a good rye complex. The research dealt with the yielding and infestation of potato canopies grown at varied agrotechnical levels. The highest potato tuber yield 34.63 t ha-1, starch content in tubers and the total yield were obtained in the objects of high level of agrotechnics. In the case of starch the increase by 5.2% and 17.2%, respectively, was reported. The decrease of agrotechnical level resulted in potato tuber diminution and increase of tubers of under 4 mm in diameter by around 27.6%. Potato infestation understoodas weed number and biomass was significantly higher in the objects of low level of agrotechnics. The rise in the number of weeds number was 27.3%, while in their air dry mass over ninefold
