Yields nutrient intake and soil fertilizing in 40 years fertilizer trials |
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Authors: | Jan Baier Vera Baierová Z Barto?ová D Ledvinková |
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Institution: | Research Institute of Crop Production, Praha‐Ruzyne , Drnovská 507, Praha 6, 161 06, Czech Republic |
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Abstract: | The set of twenty long‐term field nutrition trials starting from 1957 at five sites. The sites differed by their altitude (from 180 m to 620 m) with average daily temperatures (from 6,8°C m to 9°C m) and soil type (from chernozem to brown podsolic soil) Provided mainly the following results: ? The geonomic division to the fertile sugarbeet region and less fertile potato region did not strictly differentiate the influence of fertilizer and climatic effects to the crop yields. ? The effect of fertilizing was dependent on the nutrient content and on the conditions of releasing and binding of the nutrients in soil. ? The precipitation regime has a strong influence on the effect of the nitrogen escalated doses. ? The facts concerning the nutrient intake are very precious knowledge. These facts have not been examined yet during the long‐term trials. ? The site effect, particularly its climatic conditions, on the nutrient intake is often more obvious compared to the fertilizing effect. ? Very interesting impulses for further research monitoring during the long‐term trials was contributed by “mapping”; of soil capacity to provide nutrients to plants at various sites and under different climate. |
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Keywords: | Long‐term field experiment Soil fertility Fertilization Yield Nutrient uptake |
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