Abstract
Tomato plants were subjected to three fertilisation treatments (M: mineral fertiliser; DMPP: mineral fertiliser + 3,4dimethylpyrazole phosphate; OM: NKP + organic animal manure) in combination with two water regimes (100% and 50% evapotranspiration). Plant biomass, fruit production, nitrogen use efficiency (NUE) and N uptake, maximal PSII photochemical efficiency, Fv/Fm and cumulative soil N2O emission were determined. Well-watered OM plants showed higher values of biomass, fruit production, NUE and N uptake than M and DMPP plants; cumulative N2O fluxes were lower in DMPP plots than in M and OM plots. The reduced water supply determined a drop in crop biomass, fruit production, NUE and N uptake, and cumulative N2O fluxes in M and OM treatments that were higher in OM plots, whereas it determined a significant rise in cumulative N2O fluxes in DMPP plots that was lower in absolute term compared to M and OM plots recorded under well-water irrigation. It can be concluded that DMPP added-fertiliser has a good performance in semiarid environment resulting a better nitrogen source compared to conventional and organo-mineral fertilisers under reduced water supply, able to preserve crop yield and to determine soil N2O emissions (as expressed in CO2 eq) not dangerous for global environment.
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Claims 9
Claim · model-written summary
Well-watered OM tomatoes had higher biomass and fruit production than M and DMPP.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- OMe0
- Outcome
- biomass, fruit productione0
- Direction
- highere0
- Comparator
- M and DMPP plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Well-watered OM plants showed higher values of biomass, fruit production, NUE and N uptake than M and DMPP plants”
t0“tomato”
Claim · model-written summary
Well-watered OM tomatoes had higher NUE and N uptake than M and DMPP.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- OMe0
- Outcome
- NUE and N uptakee0
- Direction
- highere0
- Comparator
- M and DMPP plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Well-watered OM plants showed higher values of biomass, fruit production, NUE and N uptake than M and DMPP plants”
t0“tomato”
Claim · model-written summary
DMPP plots had lower cumulative N2O fluxes than M and OM plots.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- DMPPe0
- Outcome
- cumulative N2O fluxese0
- Direction
- lowere0
- Comparator
- M and OM plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cumulative N2O fluxes were lower in DMPP plots than in M and OM plots”
t0“tomato”
Claim · model-written summary
Reduced water supply lowered crop biomass and fruit production.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- reduced water supplye0
- Outcome
- crop biomass, fruit productione0
- Direction
- drope0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduced water supply determined a drop in crop biomass, fruit production, NUE and N uptake”
t0“tomato”
Claim · model-written summary
Reduced water supply lowered NUE and N uptake.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- reduced water supplye0
- Outcome
- NUE and N uptakee0
- Direction
- drope0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduced water supply determined a drop in crop biomass, fruit production, NUE and N uptake”
t0“tomato”
Claim · model-written summary
Under reduced water, cumulative N2O fluxes in M and OM were higher in OM plots.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- OMe0
- Outcome
- cumulative N2O fluxese0
- Direction
- highere0
- Comparator
- Me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cumulative N2O fluxes in M and OM treatments that were higher in OM plots”
t0“tomato”
Claim · model-written summary
Reduced water significantly raised cumulative N2O fluxes in DMPP plots.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- reduced water supplye1
- Outcome
- cumulative N2O fluxese0
- Direction
- risee0
- Qualifier
- DMPP plotse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it determined a significant rise in cumulative N2O fluxes in DMPP plots”
e1“The reduced water supply”
t0“tomato”
Claim · model-written summary
The DMPP N2O increase under reduced water remained lower in absolute terms than M and OM under full irrigation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- DMPP plotse1
- Outcome
- cumulative N2O fluxese1
- Direction
- lowere0
- Qualifier
- well-water irrigatione0
- Comparator
- M and OM plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower in absolute term compared to M and OM plots recorded under well-water irrigation”
e1“cumulative N2O fluxes in DMPP plots”
t0“tomato”
Claim · model-written summary
Authors conclude DMPP fertilizer is a better nitrogen source under reduced water, preserving yield and limiting N2O emissions.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- DMPP added-fertilisere0
- Outcome
- better nitrogen sourcee0
- Comparator
- conventional and organo-mineral fertiliserse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DMPP added-fertiliser has a good performance in semiarid environment resulting a better nitrogen source compared to conventional and organo-mineral fertilisers under reduced water supply, able to preserve crop yield and to determine soil N2O emissions (as expressed in CO2 eq) not dangerous for global environment”
t0“tomato”
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