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vol. 13, nr. 1 (2009)
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The effect of rolling up the ridges after potato planting in conditions of spring drought in 2007
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Stanisław Włodek, Andrzej Biskupski, Jan Pabin
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Department o Weed Science and Tillage systems, Wrocław Institute of Soil Science and Plant Cultivation – National Research Institute, Pulawy ul. Orzechowa 64, 50-540 Wrocław |
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vol. 13 (2009), nr. 1,
pp. 273-280
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abstract:
In 2007 an experiment was carried out with rolling up the ridges after potato planting. The experiment was run under soil-climatic conditions of Lower Silesia on grey-brown podzolic soil formed out of loamy sand. The research was aimed at determining the influence of rolling up the ridges on the density, moisture and temperature of soil as well as on the level and structure of potato tuber yield. In that year, spring was characterised by very small amount of precipitation and much higher air temperatures than those of multi-year monthly average. In the beginning of May physical properties of the soil were determined in 0-5 and 5-10 cm layers. The superficial soil layer appeared to be very dry, while in the rolled ridges the soil moisture was significantly higher. There were also observed differen¬ces in the soil temperature. Soil compaction was found to have contributed to a decrease in the amplitude of soil temperature changes in the rolled ridges, in which the temperature measured in morning hours was higher. In afternoon hours it was the other way round - soil temperature in the rolled ridges was lower. The yield of potato tubers grown in the rolled ridges was significantly higher; it contained several times more tubers fraction of 100 g and less of them in small fractions 70 g.
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keywords:
potato, rolling, drought
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original in:
Polish
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