Claim · model-written summary
The authors recommend low N rates, which meet the plant demand without risk on production.
- Taxon
- Sugar beet
Beta vulgaris subsp. vulgarise0 - Outcome
- low N ratese1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet plants were irrigated with 8 and 16 dS m-1 saline water”
e1“It means that low N rates meet the plant demand without risk on production and achieved the most benefits from the added doses”
Title
E. El-Hadidi; H. Abdel Aziz; M. Enab Journal of Soil Sciences and Agricultural Engineering /Journal of Soil Sciences and Agricultural Engineering 2017. doi:10.21608/jssae.2017.38204
Other claims from this paper (18)
- Intervention effect Shoot dry weight was not significantly affected by the experimental factors.
- Intervention effect Reduction in water quantities significantly but negatively affected root dry weight.
- Intervention effect Raising water salinity significantly but negatively affected root dry weight.
- Intervention effect Root dry weight of plants treated with N50 was superior to other N rates, especially under W80 and W60 water regimes.
- Intervention effect Nitrogen uptake by shoot and roots was variably and significantly affected by water and N fertilizer regimes under different salinity levels.
- Intervention effect The water and nitrogen treatments W100, N80 and N100 interacted with salinity levels were the best treatments.
- Intervention effect Generally, N uptake was negatively affected by shortage in water requirement.
- Intervention effect The highest N uptake by shoots under 8 and 16 dS m-1 salinity was recorded with 50% N recommended rate.
- Intervention effect N80 and N100 interacted with salinity levels gave the best N uptake by root under W100, W80 and W60, respectively.
- Intervention effect Ndff by shoot tended to be reduced by irrigation water shortage up to W60.
- Intervention effect Ndff values were increased with irrigation water salinity levels in most cases.
- Intervention effect More Ndff by shoot was gained when plants were fertilized with either N80 or N50 rates.
- Intervention effect Ndff by root was negatively affected by shortage of water requirement.
- Intervention effect Ndff by root declined with increasing water salinity.
- Intervention effect Low rate of chemical fertilizer enhanced Ndff by root, especially at the W100 regime.
- Intervention effect The interaction of salinity and N rates (S x N) increased %NUE at S8 and S16 salinity levels compared with fresh water.
- Intervention effect The S x N interaction increase in %NUE was true, but to a low extent, under W80 and W60 water regimes.
- Intervention effect The highest %NUE by root was recorded with N50 interacted with fresh water under W100 regime.