Abstract
Tillage operations for different soils, sites and agroclimatic conditions can show different effects. We have studied for 3 years (2001-2003) the effects of three tillage systems on soil organic matter (OM) and nutrition of crops, in (Helianthus annuus L.) - barley (Hordeum vulgare L.) - Hungarian vetch (Vicia pannonica Crantz)+triticale mixture rotation, established in a loam soil (typic Xerofluvent) of passage zone between coastal belt and the continental climate of Central Anatolia in Turkey. Tillage treatments were chisel ploughing (C); chisel ploughing+ disc harrowing (CD) and chisel ploughing+combine harrowing (CH). Crops were not fertilized. Soil samples taken from 0-20 cm depths at four different periods of the experiment were used for OM and available nutrients (P, K, Fe, Zn). Plant nutrient analysis (N, P, K, Fe, Zn) were conducted on sunflower and Hungarian vetch+triticale samples at harvesting. In tillage treatments, there were no significant differences either for OM and available nutrients in soil depth studied nor nutrient contents of plants. Accordingly nutrient uptakes of plants depend on OM and available nutrient contents of soil, it seems that the mineralization rate of OM was lower in C treatment. It is concluded that the lack of clear differences could be associated with low OM content in relation to xeric soil moisture regime of experimental soil and the short-term of the experiment.
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Claims 3
Claim · model-written summary
Three tillage systems did not significantly differ in organic matter, available nutrients or plant nutrient contents.
- Taxon
- sunflower
Helianthus annuuse2 - Treatment
- tillage treatmentse1
- Outcome
- OM and available nutrientse1
- Direction
- no_changeinferrede1
- Qualifier
- nutrient contents of plantse1
- Comparator
- chisel ploughing (C)e3
- Setting
- Central Anatolia in Turkeye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In tillage treatments, there were no significant differences either for OM and available nutrients in soil depth studied nor nutrient contents of plants”
e2“Plant nutrient analysis (N, P, K, Fe, Zn) were conducted on sunflower and Hungarian vetch+triticale samples at harvesting”
e3“Tillage treatments were chisel ploughing (C); chisel ploughing+ disc harrowing (CD) and chisel ploughing+combine harrowing (CH)”
e4“established in a loam soil (typic Xerofluvent) of passage zone between coastal belt and the continental climate of Central Anatolia in Turkey”
Claim · model-written summary
The mineralization rate of organic matter seems lower under chisel ploughing (C) than under the other tillage systems (author interpretation).
- Taxon
- sunflowerHelianthus annuuse2
- Treatment
- C treatmente5
- Outcome
- mineralization rate of OMe5
- Direction
- lowere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“it seems that the mineralization rate of OM was lower in C treatment”
e3“Tillage treatments were chisel ploughing (C); chisel ploughing+ disc harrowing (CD) and chisel ploughing+combine harrowing (CH)”
e2“Plant nutrient analysis (N, P, K, Fe, Zn) were conducted on sunflower and Hungarian vetch+triticale samples at harvesting”
Claim · model-written summary
Plant nutrient uptake depends on soil organic matter and available nutrient contents (author interpretation).
- Taxon
- sunflowerHelianthus annuuse2
- Compound
- OM and available nutrient contents of soile6
- Outcome
- nutrient uptakes of plantse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Accordingly nutrient uptakes of plants depend on OM and available nutrient contents of soil”
e2“Plant nutrient analysis (N, P, K, Fe, Zn) were conducted on sunflower and Hungarian vetch+triticale samples at harvesting”
The same questions in other papers
tillage · nutrient: content · Helianthus annuus (common sunflower)Positive and negative results
5 reporting no difference from an alternative
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.