Abstract
Due to increasing size of Danish organic dairy farms uniform grazing of all cropped land becomes inexpedient due to long distance to the milking facilities. We investigated nutrient dynamics and feed production in two dairy crop rotations with internal differences in proportion of grazing and cutting. One six year crop rotation represents close to the farm buildings (barley [Hordeum vulgare L.] undersown with grass-clover [Lolium perenne L.–Trifolium repens L.] - 4 years of grass-clover - spring barley/catch crop) and another represents further away (barley undersown with grass-clover, 2 years of grass-clover -barley/catch crop - maize [Zea mays L.]/catch crop - lupin [Lupinus angustifolius]/catch crop). In each of the crop rotations was made five treatments concerning grazing/cutting strategy and manure application. Results from the first experimental year shows that herbage production was high in year 1-4 of grass-clover. Nitrate leaching in the crop rotations were highest in grazed and manured 2-4 years old grasslands, but also following maize and lupin considerable losses occurred despite the presence of catch crops. Following grassland cultivation, a barley silage crop undersown with Italian ryegrass [Lolium multiflorum L.] reduced leaching to a minimum.
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Claims 5
Claim · model-written summary
Grass-clover herbage production was high in years 1–4.
Verbatim
e0“Results from the first experimental year shows that herbage production was high in year 1-4 of grass-clover.”
Claim · model-written summary
Nitrate leaching was highest in grazed and manured grasslands aged 2–4 years.
Verbatim
t0“organic dairy grass-arable crop rotations”
e0“Nitrate leaching in the crop rotations were highest in grazed and manured 2-4 years old grasslands, but also following maize and lupin considerable losses occurred despite the presence of catch crops.”
Claim · model-written summary
Considerable nitrate losses followed maize despite catch crops.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate leaching in the crop rotations were highest in grazed and manured 2-4 years old grasslands, but also following maize and lupin considerable losses occurred despite the presence of catch crops.”
Claim · model-written summary
Considerable nitrate losses followed lupin despite catch crops.
LupinusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate leaching in the crop rotations were highest in grazed and manured 2-4 years old grasslands, but also following maize and lupin considerable losses occurred despite the presence of catch crops.”
Claim · model-written summary
Barley silage undersown with Italian ryegrass reduced leaching to a minimum after grassland cultivation.
- Taxon
- barley
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Hordeum vulgaree0 - Treatment
- undersown with Italian ryegrass [Lolium multiflorum L.]e0
- Outcome
- leachinge0
- Direction
- reducede0
- Qualifier
- Following grassland cultivatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Following grassland cultivation, a barley silage crop undersown with Italian ryegrass [Lolium multiflorum L.] reduced leaching to a minimum.”
The same questions in other papers
Lolium multiflorum · environment: emissions · Hordeum vulgare (barley)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.