Claim · model-written summary
Ammonium sulphate with and without N-Serve depressed soil pH, especially in acidic soils, more than sulphur-coated urea.
- Taxon
- sugarcanee1
- Treatment
- AS and AS + N-Servee2
- Outcome
- soil pHe2
- Direction
- depressede2
- Qualifier
- especially that of acidic soilse2
- Comparator
- SCUe2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Verbatim
e1“A comparison of ammonium sulphate (AS) with and without N-Serve and sulphurcoated urea (SCU) as N sources for sugarcane”
e2“AS and AS + N-Serve depressed the soil pH, especially that of acidic soils, much more than SCU”
Title
R. C. Dalal; M. Prasad The Journal of Agricultural Science 1975. doi:10.1017/s0021859600062304
Other claims from this paper (8)
- Intervention effect Adding fertilizer N increased tillering, leaf N concentration and cane yield in a pot experiment.
- Intervention effect Ammonium sulphate with or without N-Serve did not differ significantly from sulphur-coated urea in tillering, leaf N concentration and cane yield.
- Intervention effect Urea applied on the surface gave significantly lower cane and sucrose yields than ammonium sulphate and sulphur-coated urea on a calcareous soil.
- Mechanism Greater volatilization losses from urea possibly explain its lower sugarcane yields.
- Intervention effect Subsurface application increased the efficiency of urea compared with surface application.
- Intervention effect The method of placement had no significant effect on the N efficiency of ammonium sulphate and sulphur-coated urea.
- Intervention effect Ammonium sulphate was as effective as sulphur-coated urea for sugarcane.
- Intervention effect Coating urea with sulphur increased its efficiency for sugarcane only when applied on the surface of a calcareous soil.