Claim · model-written summary
Farmyard manure gave cabbage with lower total N, nitrate and oxalic acid contents than mineral fertilisers.
- Taxon
- cabbage plants
Brassica oleracea var. capitatae2 - Treatment
- farmyard manuree2
- Outcome
- total N, nitrate, and oxalic acid contentse2
- Direction
- lowere2
- Comparator
- mineral fertiliserse2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“farmyard manure was much more suitable than mineral fertilisers for plant quality according to lower total N, nitrate, and oxalic acid contents of cabbage plants”
t0“ion content of cabbage”
Title
Metin Turan; Figen Sevimli New Zealand Journal of Crop and Horticultural Science 2005. doi:10.1080/01140671.2005.9514356
Other claims from this paper (14)
- Intervention effect Cabbage head weight was generally greater with mineral fertiliser than with organic fertiliser.
- Intervention effect Potassium nitrate at 400 kg N/ha gave cabbage yields 66% higher than no added fertiliser.
- Intervention effect Ammonium nitrate at 400 kg N/ha gave cabbage yields 61% higher than no added fertiliser.
- Intervention effect Ammonium sulphate at 400 kg N/ha gave cabbage yields 40% higher than no added fertiliser.
- Intervention effect Urea at 400 kg N/ha gave cabbage yields 49% higher than no added fertiliser.
- Intervention effect Farmland manure at 400 kg N/ha gave cabbage yields 44% higher than no added fertiliser.
- Intervention effect Ammonium nitrate at 342 kg N/ha gave higher cabbage plant yields than other fertiliser applications in the regression analysis.
- Association Organic anion accumulation in cabbage plants increased with increasing NO3 nutrition.
- Association Cation concentration in cabbage increased in parallel with organic anion accumulation.
- Observation Total inorganic anion levels in cabbage were relatively constant.
- Intervention effect Increasing NO3 nutrition stimulated organic anion accumulation (glutamate, malate, oxalate) far more than ammonium.
- Association Nitrate content of cabbage increased with increasing N application, especially with nitrate fertiliser.
- Intervention effect The increases observed in cabbage were highest with potassium nitrate and lowest with no added fertiliser.
- Recommendation Ammonium sulphate at 250 kg N/ha is the most suitable rate for cabbage quality, given its lower yield risk for human nutrition.