Claim · model-written summary
Lucerne plant height and stem diameter responded quadratically to N rate, peaking at intermediate N and then declining.
- Taxon
- Lucerne
Medicago sativat0 - Treatment
- elevated nitrogen (N) application ratese0
- Outcome
- Plant height and stem diametere0
- Direction
- peaking at intermediate N levels before declining with further increasese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Lucerne”
e0“Plant height and stem diameter exhibited a quadratic response to elevated nitrogen (N) application rates under identical planting patterns, peaking at intermediate N levels before declining with further increases”
Title
Minhua Yin; Yuanbo Jiang; Yi Ling; et al. Agriculture 2025. doi:10.3390/agriculture15080845
Other claims from this paper (14)
- Intervention effect Ridge planting with film mulching significantly promoted lucerne growth compared with conventional flat planting.
- Intervention effect Ordinary plastic film had a stronger growth-promoting effect on lucerne than biodegradable film.
- Intervention effect Ridge planting with ordinary or biodegradable film plus an appropriate N rate improved lucerne yield and quality.
- Intervention effect The PMN2 treatment gave the highest lucerne yield, 14,600 kg/ha, significantly better than other treatments.
- Intervention effect The PMN2 treatment gave the highest crude protein, 19.19%, significantly better than other treatments.
- Intervention effect The PMN2 treatment gave the highest relative feed value, 124.18, significantly better than other treatments.
- Intervention effect The PMN2 treatment gave the lowest ADF, 29.63%, significantly better than other treatments.
- Intervention effect The PMN2 treatment gave the lowest NDF, 48.86%, significantly better than other treatments.
- Intervention effect WUE, IWUE and PFPN followed the order ridge-furrow ordinary mulch > biodegradable mulch > flat planting.
- Intervention effect ANUE followed the order ridge-furrow ordinary mulch > biodegradable mulch > flat planting.
- Intervention effect With increasing N rates, WUE, IWUE and ANUE first rose then declined, peaking at N2.
- Intervention effect PFPN decreased with increasing N rate and was greatest at N1.
- Intervention effect Principal component analysis showed ridge planting with ordinary plastic film plus 160 kg/ha N (PMN2) optimized lucerne performance, with balanced gains in yield, forage quality and water and N use efficiency.
- Recommendation The authors recommend PMN2 as the optimal lucerne cultivation strategy in the Gansu Yellow River Irrigation Region and similar ecoregions.