Claim · model-written summary
White mustard, tillage radish and hairy vetch had the highest autumn nitrogen uptake at 77-125 kg N/ha.
- Taxon
- white mustard, tillage radish and hairy vetche0
- Outcome
- Nitrogen uptakee0
- Direction
- higheste0
- Value
- 77-125 kg N/hae0
- Qualifier
- autumne0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSetting
Verbatim
e0“Nitrogen uptake in autumn was highest for white mustard, tillage radish and hairy vetch (77-125 kg N/ha)”
Title
Measurement and sensing of cover crop growth and nitrogen credits in conservation agriculture.
Luca Bechini; Mortadha Ben Hassine; Domenico Ditto; et al. Institutional Research Information System University of Ferrara (University of Ferrara) 2019
Other claims from this paper (19)
- Observation White mustard, tillage radish and black oat accumulated 1.5–3.0 t DM/ha by November.
- Observation Egyptian clover, hairy vetch and purple vetch reached 0.5–1.5 t DM/ha with lower growth rate.
- Association Non-legume cover crops controlled weeds better than legume cover crops.
- Observation Rye and black oat had intermediate nitrogen uptake.
- Observation Egyptian clover and purple vetch had the lowest nitrogen uptake at 35 kg N/ha.
- Observation Rye and hairy vetch survived winter.
- Observation White mustard was always killed by winter frost.
- Intervention effect Cover crops had no relevant effect on maize yield.
- Intervention effect Cover crops had no relevant effect on maize nitrogen uptake.
- Method / resource NDVI saturation above about 1 t DM/ha reduced its biomass prediction capacity.
- Method / resource CIg saturation above about 2 t DM/ha reduced its biomass prediction capacity.
- Method / resource An index using measured crop height improved biomass predictions with R2 0.64–0.86.
- Method / resource Vegetation indices poorly predicted cover crop nitrogen concentration.
- Method / resource Spectral predictions of nitrogen concentration from fresh samples were poor.
- Method / resource Dried, ground samples yielded better NIRS nitrogen predictions, with R2 0.86 for the bench instrument.
- Method / resource Dried, ground samples yielded R2 0.70 with the portable instrument.
- Method / resource Locally Weighted Regression improved bench instrument R2 to 0.90.
- Method / resource Locally Weighted Regression improved portable instrument R2 to 0.84.
- Observation Cultivation cost ranged from 112 €/ha for white mustard to 208 €/ha for rye.