Abstract
AbstractInfluence of different nitrogen salts at electrical conductivity levels (EC2, 4 and 8 mmhos/cm) on tomato and root-knot nematode (Meloidogyne javanica) and their interactions was evaluated under field conditions. It was found that both diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4) were more effective than ammonium chloride (NH4Cl) in causing an obvious suppression of M. javanica infection on tomato through reducing root galling and nematode reproduction and improving tomato growth and yield and their suppressive effect was similar to that of oxamyl or ethoprophos. At higher ECs, the tested nitrogen salts did not greatly affect pH, EC and salinity of rhizospheric soil except NH4Cl at EC8 that caused higher EC and salinity over the untreated control which makes NH4Cl less suitable candidate. Therefore, the use of (NH4)2HPO4 and (NH4)2SO4 alone or in combination with other control measures could control M. javanica and improve the growth and yield of tomato under field conditions.Keywords: inorganic fertilisersplant-parasitic nematodesSolanum lycopersicon AcknowledgementsThis work is part of a research project financially supported by the Scientific Research Support Fund, Ministry of Higher Education, Jordan in a coordination with the Scientific Research Deanship of Mutah University, Karak, Jordan.
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Claims 7
Claim · model-written summary
(NH4)2HPO4 and (NH4)2SO4 were more effective than NH4Cl in suppressing M. javanica infection on tomato.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4)e1
- Interactor
- M. javanicaMeloidogyne javanicae1pest
- Outcome
- suppression of M. javanica infectione1
- Direction
- more effectivee1
- Comparator
- ammonium chloride (NH4Cl)e1
- Setting
- field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Influence of different nitrogen salts at electrical conductivity levels (EC2, 4 and 8 mmhos/cm) on tomato and root-knot nematode (Meloidogyne javanica) and their interactions was evaluated under field conditions”
e1“It was found that both diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4) were more effective than ammonium chloride (NH4Cl) in causing an obvious suppression of M. javanica infection on tomato through reducing root galling and nematode reproduction and improving tomato growth and yield and their suppressive effect was similar to that of oxamyl or ethoprophos”
Claim · model-written summary
The two ammonium salts reduced root galling and nematode reproduction on tomato relative to NH4Cl.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4)e1
- Interactor
- M. javanicaMeloidogyne javanicae1pest
- Outcome
- root galling and nematode reproductione1
- Direction
- reducinge1
- Comparator
- ammonium chloride (NH4Cl)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Influence of different nitrogen salts at electrical conductivity levels (EC2, 4 and 8 mmhos/cm) on tomato and root-knot nematode (Meloidogyne javanica) and their interactions was evaluated under field conditions”
e1“It was found that both diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4) were more effective than ammonium chloride (NH4Cl) in causing an obvious suppression of M. javanica infection on tomato through reducing root galling and nematode reproduction and improving tomato growth and yield and their suppressive effect was similar to that of oxamyl or ethoprophos”
Claim · model-written summary
The two ammonium salts improved tomato growth and yield relative to NH4Cl.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4)e1
- Outcome
- tomato growth and yielde1
- Direction
- improvinge1
- Comparator
- ammonium chloride (NH4Cl)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Influence of different nitrogen salts at electrical conductivity levels (EC2, 4 and 8 mmhos/cm) on tomato and root-knot nematode (Meloidogyne javanica) and their interactions was evaluated under field conditions”
e1“It was found that both diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4) were more effective than ammonium chloride (NH4Cl) in causing an obvious suppression of M. javanica infection on tomato through reducing root galling and nematode reproduction and improving tomato growth and yield and their suppressive effect was similar to that of oxamyl or ethoprophos”
Claim · model-written summary
The suppressive effect of the two ammonium salts was similar to that of oxamyl or ethoprophos.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4)e1
- Outcome
- suppressive effecte1
- Direction
- similare1
- Comparator
- oxamyl or ethoprophose1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Influence of different nitrogen salts at electrical conductivity levels (EC2, 4 and 8 mmhos/cm) on tomato and root-knot nematode (Meloidogyne javanica) and their interactions was evaluated under field conditions”
e1“It was found that both diammonium phosphate ((NH4)2HPO4) and ammonium sulphate ((NH4)2SO4) were more effective than ammonium chloride (NH4Cl) in causing an obvious suppression of M. javanica infection on tomato through reducing root galling and nematode reproduction and improving tomato growth and yield and their suppressive effect was similar to that of oxamyl or ethoprophos”
Claim · model-written summary
NH4Cl at EC8 caused higher soil EC and salinity than the untreated control.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- NH4Cl at EC8e2
- Outcome
- EC and salinitye2
- Direction
- highere2
- Comparator
- untreated controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Influence of different nitrogen salts at electrical conductivity levels (EC2, 4 and 8 mmhos/cm) on tomato and root-knot nematode (Meloidogyne javanica) and their interactions was evaluated under field conditions”
e2“At higher ECs, the tested nitrogen salts did not greatly affect pH, EC and salinity of rhizospheric soil except NH4Cl at EC8 that caused higher EC and salinity over the untreated control which makes NH4Cl less suitable candidate”
Claim · model-written summary
At higher ECs the tested nitrogen salts did not greatly affect soil pH, EC and salinity.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- nitrogen saltse2
- Outcome
- pH, EC and salinitye2
- Qualifier
- At higher ECse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Influence of different nitrogen salts at electrical conductivity levels (EC2, 4 and 8 mmhos/cm) on tomato and root-knot nematode (Meloidogyne javanica) and their interactions was evaluated under field conditions”
e2“At higher ECs, the tested nitrogen salts did not greatly affect pH, EC and salinity of rhizospheric soil except NH4Cl at EC8 that caused higher EC and salinity over the untreated control which makes NH4Cl less suitable candidate”
Claim · model-written summary
Ammonium diphosphate and ammonium sulphate could control M. javanica and improve tomato growth and yield under field conditions.
- Taxon
- tomatoSolanum lycopersicume3
- Treatment
- (NH4)2HPO4 and (NH4)2SO4e3
- Interactor
- M. javanicaMeloidogyne javanicae3pest
- Outcome
- control M. javanicae3
- Setting
- field conditionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Therefore, the use of (NH4)2HPO4 and (NH4)2SO4 alone or in combination with other control measures could control M. javanica and improve the growth and yield of tomato under field conditions”
The same questions in other papers
ammonium sulfate · Meloidogyne javanica · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
diammonium hydrogen phosphate · yield · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
ammonium sulfate · yield · Solanum lycopersicum (tomato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.