Abstract
Abstract Simplified cereal-based crop rotations are widely grown due to economic reasons, leading to the cultivation of wheat after wheat and associated yield losses. In this study, a crop rotation trial was conducted in Northern Germany on a Stagnic Luvisol from 2006 to 2018 with winter wheat after the four most widely used preceding crops in the region (sugar beet, winter wheat, silage maize and winter oilseed rape) in different crop rotations to evaluate potential benefits of different preceding crops. Additionally, the effects of two different sowing dates (2016–2018) and higher crop residue input (whole period) were investigated. While the pre-preceding crop had no effect, preceding crops winter oilseed rape and sugar beet led to a significantly higher yield of about 1.00 and 0.43 t/ha, respectively, compared to wheat after wheat. This was not modified by crop rotational diversity, including wheat monoculture. Wheat yield tended to be higher for the late sowing date after sugar beet, maize and wheat, while there was no effect of sowing date after oilseed rape. Higher crop residue input led to a significantly higher yield (0.30 t/ha) in wheat after wheat (after pre-preceding crop sugar beet). Overall, sugar beet and winter oilseed rape were found to be favourable preceding crops for winter wheat under the given site conditions. The effect of sowing date on yield and potential modifications of the preceding crop effect by sowing date needs further research in appropriate long-term trials.
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Claims 8
Claim · model-written summary
The pre-preceding crop had no effect on winter wheat yield.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- pre-preceding crope0
- Outcome
- yielde0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat”
e0“the pre-preceding crop had no effect, preceding crops winter oilseed rape and sugar beet led to a significantly higher yield”
Claim · model-written summary
Winter oilseed rape as preceding crop led to significantly higher winter wheat yield, by about 1.00 t/ha, than wheat after wheat.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- winter oilseed rapee0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 1.00e0
- Comparator
- wheat after wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat”
e0“preceding crops winter oilseed rape and sugar beet led to a significantly higher yield of about 1.00 and 0.43 t/ha, respectively, compared to wheat after wheat”
Claim · model-written summary
Sugar beet as preceding crop led to significantly higher winter wheat yield, by about 0.43 t/ha, than wheat after wheat.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- sugar beete0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 0.43 t/hae0
- Comparator
- wheat after wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“winter wheat”
e0“preceding crops winter oilseed rape and sugar beet led to a significantly higher yield of about 1.00 and 0.43 t/ha, respectively, compared to wheat after wheat”
Claim · model-written summary
The preceding crop effect on wheat yield was not modified by crop rotational diversity, including wheat monoculture.
- Taxon
- wheatTriticum aestivume0
- Treatment
- crop rotational diversitye0
- Outcome
- higher yielde1
- Direction
- not modifiede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This was not modified by crop rotational diversity, including wheat monoculture”
e1“preceding crops winter oilseed rape and sugar beet led to a significantly higher yield”
Claim · model-written summary
Wheat yield tended to be higher with the late sowing date after sugar beet, maize and wheat.
- Taxon
- WheatTriticum aestivume0
- Treatment
- late sowing datee0
- Outcome
- yielde0
- Direction
- highere0
- Qualifier
- tendede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat yield tended to be higher for the late sowing date after sugar beet, maize and wheat”
Claim · model-written summary
There was no effect of sowing date on wheat yield after oilseed rape.
- Taxon
- WheatTriticum aestivume0
- Treatment
- sowing datee0
- Outcome
- Wheat yielde0
- Direction
- no effecte0
- Qualifier
- after oilseed rapee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat yield tended to be higher for the late sowing date after sugar beet, maize and wheat, while there was no effect of sowing date after oilseed rape”
Claim · model-written summary
Higher crop residue input led to a significantly higher yield, by 0.30 t/ha, in wheat after wheat.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Higher crop residue inpute0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 0.30 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher crop residue input led to a significantly higher yield (0.30 t/ha) in wheat after wheat”
Claim · model-written summary
Sugar beet and winter oilseed rape are recommended as favourable preceding crops for winter wheat under the given site conditions.
- Taxon
- winter wheatTriticum aestivume0
- Outcome
- favourable preceding cropse0
- Qualifier
- under the given site conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sugar beet and winter oilseed rape were found to be favourable preceding crops for winter wheat under the given site conditions”
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