Abstract
Abstract A greenhouse research was conducted to determine the effects of soil application of humus on dry matter and some nutrient element uptake of maize grown under calcareous soil conditions. Agricultural lime was used to obtain five CaCO3 doses (0, 5, 10, 20 and 40%). Three doses of solid humus (0, 1 and 2 g kg−1) were applied to soil one month before planting. Although the dry weight and N, P, K, Ca, Mg, Fe, Cu, Mn, Zn and Na uptake of the plants were affected negatively, especially at 20 and 40% of lime levels, the soil application of humus had statistically significant effect on dry weight, N, Fe, Na (p < 0.05) K, Mg, Cu, Zn and Mn (p < 0.01) except P and Ca uptake of maize plant. The highest mean of dry weight, N, P, Ca, Mg, Fe, Zn and Mn uptake were obtained from 1 g kg−1 humus treatment. In contrast, the highest mean of K, Cu and Na uptake was determined at 2 g kg−1 doses of humus treatment, respectively. The interaction effect between lime and soil humus was also found statistically significant on dry weight, and the uptake of N, P, Ca, Mg, Fe, Cu and Mn (p < 0.01). Keywords: calcareous soilhumusmaizenutrient elementsplant growth Acknowledgement This work was supported by the Research Fund of The University of Uludag Project Number: 2003/92 and The Scientific and Technical Research Council of Turkey (TOVAG 105 0 345). We also thank Mrs Mine Uzun, from English Language studies, University of Wollongong, Australia for her critical reading of the manuscript.
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Claims 9
Claim · model-written summary
High lime levels negatively affected maize dry weight and mineral uptake.
- Treatment
- 20 and 40% of lime levelse0
- Outcome
- dry weight and N, P, K, Ca, Mg, Fe, Cu, Mn, Zn and Na uptakee0
- Direction
- affected negativelye0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although the dry weight and N, P, K, Ca, Mg, Fe, Cu, Mn, Zn and Na uptake of the plants were affected negatively, especially at 20 and 40% of lime levels”
t0“maize”
Claim · model-written summary
Humus significantly affected maize dry weight and N, Fe and Na uptake.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil application of humus had statistically significant effect on dry weight, N, Fe, Na (p < 0.05) K, Mg, Cu, Zn and Mn (p < 0.01) except P and Ca uptake of maize plant.”
t0“maize”
Claim · model-written summary
Humus significantly affected K, Mg, Cu, Zn and Mn uptake.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil application of humus had statistically significant effect on dry weight, N, Fe, Na (p < 0.05) K, Mg, Cu, Zn and Mn (p < 0.01) except P and Ca uptake of maize plant.”
t0“maize”
Claim · model-written summary
Humus did not significantly affect P and Ca uptake.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil application of humus had statistically significant effect on dry weight, N, Fe, Na (p < 0.05) K, Mg, Cu, Zn and Mn (p < 0.01) except P and Ca uptake of maize plant.”
t0“maize”
Claim · model-written summary
One gram per kg humus gave highest dry weight and N, P and Ca uptake.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mean of dry weight, N, P, Ca, Mg, Fe, Zn and Mn uptake were obtained from 1 g kg−1 humus treatment.”
t0“maize”
Claim · model-written summary
One gram per kg humus gave highest Mg, Fe, Zn and Mn uptake.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest mean of dry weight, N, P, Ca, Mg, Fe, Zn and Mn uptake were obtained from 1 g kg−1 humus treatment.”
t0“maize”
Claim · model-written summary
Two grams per kg humus gave highest K, Cu and Na uptake.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest mean of K, Cu and Na uptake was determined at 2 g kg−1 doses of humus treatment”
t0“maize”
Claim · model-written summary
Lime and humus interacted significantly for maize dry weight and N, P and Ca uptake.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction effect between lime and soil humus was also found statistically significant on dry weight, and the uptake of N, P, Ca, Mg, Fe, Cu and Mn (p < 0.01).”
t0“maize”
Claim · model-written summary
Lime and humus interacted significantly for Mg, Fe, Cu and Mn uptake.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction effect between lime and soil humus was also found statistically significant on dry weight, and the uptake of N, P, Ca, Mg, Fe, Cu and Mn (p < 0.01).”
t0“maize”
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