Potato yielding and infestation under the conditions of differentiated level of agrotechnics on the light soil
2003
Derylo, S. | Szymankiewicz, K. (Akademia Rolnicza, Lublin (Poland). Katedra Ogolnej Uprawy Roli i Roslin)
A strict field experiment was conducted at the Experimental Farm Uhrusk (Poland) in the years 1995-97. 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, 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 percent, 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 percent. 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 percent, while in their air dry mass over ninefold
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