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vol. 11, nr. 3 (2008)
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Yielding of potato under varied tillage conditions
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Dorota Gawęda
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Department of Soil and Plant Cultivation, University of Life Sciences, ul. Akademicka 13, 20-950 Lublin |
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vol. 11 (2008), nr. 3,
pp. 623-632
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abstract:
The study was aimed at evaluating the influence of tillage systems in combination with varied cultivation depth on potato yielding, yield structure, and starch content in tubers. The experiment, carried out in 2001-2003, included three-field crop rotation: potato – winter wheat – soybean. In no-tillage system, ploughing was replaced with harrowing and soil pulverizing. Depending on tillage system, ploughing or pulverizing was made at different depths. The three-year study could not reveal the influence of tillage system on potato yielding. Only a tendency of its increase in ploughing as compared to no-tillage system was observed. Under conditions of shallow tillage, the tuber yield was lower by 10.3% than in objects with deep tillage. Tillage systems applied in the experiment significantly modified the yields of < 3 cm, 3-4 cm, and 4-5 cm tuber fractions. Higher yields of those fractions were achieved on ploughing system objects. Tillage depth considerably modified yields of 3-4 cm, 4-5 cm, and > 6 cm tubers. Studied experimental factors had no influence on starch percentage in tubers.
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keywords:
plough system, ploughless system, deep ploughing, shallow ploughing, potato yielding
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original in:
Polish
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