Abstract
A field experiment was conducted in the period of 2004-2006 to investigate the effect of green manure treatments on the yield and yield quality of spring wheat. In the experiment, different green manure crops were compared for amounts of N, C and organic matter applied into soil and their effect on the yield and yield quality of succeeding cereals. The amount of organic matter applied into soil was dependent on the cultivated crop. The highest amount of organic matter was applied with hybrid lucerne, the lowest, with unfertilised oats. With sowings of red clover, lucerne and hybrid lucerne, 4.91-7.70 Mg C ha -1 and 341.9-379.1 kg N ha -1 were added to soil with green material and roots. The yield of spring wheat on unfertilised soil was 2.12 Mg ha -1 , but the treatment with hybrid lucerne as a preceding crop gave an extra yield of 1.45 Mg ha -1 . Green manure crops did not have a unilateral effect on the quality of spring wheat. Grain yield grew with the increased norm of mineral nitrogen, but there was no significant improvement in quality indicators.
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Claims 9
Claim · model-written summary
The highest amount of organic matter was applied to soil with hybrid lucerne as the green manure.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- hybrid lucernee1
- Outcome
- amount of organic mattere1
- Direction
- higheste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e1“The highest amount of organic matter was applied with hybrid lucerne, the lowest, with unfertilised oats”
Claim · model-written summary
The lowest amount of organic matter was applied to soil with unfertilised oats.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- unfertilised oatse1
- Outcome
- amount of organic mattere1
- Direction
- loweste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e1“The highest amount of organic matter was applied with hybrid lucerne, the lowest, with unfertilised oats”
Claim · model-written summary
Sowings of red clover, lucerne and hybrid lucerne added 4.91-7.70 Mg C ha-1 to soil.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- sowings of red clover, lucerne and hybrid lucernee2
- Outcome
- added to soile2
- Direction
- increaseinferrede2
- Value
- 4.91-7.70 Mg C ha -1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e2“With sowings of red clover, lucerne and hybrid lucerne, 4.91-7.70 Mg C ha -1 and 341.9-379.1 kg N ha -1 were added to soil with green material and roots”
Claim · model-written summary
Sowings of red clover, lucerne and hybrid lucerne added 341.9-379.1 kg N ha-1 to soil.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- sowings of red clover, lucerne and hybrid lucernee2
- Outcome
- added to soile2
- Direction
- increaseinferrede2
- Value
- 341.9-379.1 kg N ha -1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e2“With sowings of red clover, lucerne and hybrid lucerne, 4.91-7.70 Mg C ha -1 and 341.9-379.1 kg N ha -1 were added to soil with green material and roots”
Claim · model-written summary
Spring wheat yield on unfertilised soil was 2.12 Mg ha-1.
- Taxon
- spring wheat
Triticum aestivume3 - Outcome
- yield of spring wheate3
- Value
- 2.12 Mg ha -1e3
- Qualifier
- unfertilised soile3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“The yield of spring wheat on unfertilised soil was 2.12 Mg ha -1”
Claim · model-written summary
Hybrid lucerne as a preceding crop gave an extra spring wheat yield of 1.45 Mg ha-1 compared with unfertilised soil.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- hybrid lucerne as a preceding crope4
- Outcome
- yielde4
- Direction
- increaseinferrede4
- Value
- 1.45 Mg ha -1e4
- Comparator
- unfertilised soile3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e3“The yield of spring wheat on unfertilised soil was 2.12 Mg ha -1”
e4“but the treatment with hybrid lucerne as a preceding crop gave an extra yield of 1.45 Mg ha -1”
Claim · model-written summary
Green manure crops had no unilateral effect on the quality of spring wheat.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- Green manure cropse5
- Outcome
- quality of spring wheate5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e5“Green manure crops did not have a unilateral effect on the quality of spring wheat”
Claim · model-written summary
Grain yield of spring wheat grew with the increased norm of mineral nitrogen.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- increased norm of mineral nitrogene6
- Outcome
- Grain yielde6
- Direction
- grewe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e6“Grain yield grew with the increased norm of mineral nitrogen”
Claim · model-written summary
The increased norm of mineral nitrogen gave no significant improvement in quality indicators of spring wheat.
- Taxon
- spring wheat
Triticum aestivume0 - Treatment
- increased norm of mineral nitrogene6
- Outcome
- quality indicatorse7
- Direction
- no significant improvemente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“on the yield and yield quality of spring wheat”
e6“Grain yield grew with the increased norm of mineral nitrogen”
e7“but there was no significant improvement in quality indicators”
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