Abstract
Field experiments were conducted at two different locations under rainfed conditions of Punjab, Pakistan to assess nodulation, nitrogen fixation and nutrient uptake by chickpea (Cicer arietinum L.) in response to application of three rates [0, 40, and 80 kg phosphorus pentoxide (P2O5 ha−1)] of phosphorus and three rates (0, 15 and 30 kg S ha−1) of sulfur in different combinations. Effect of phosphorus application was nonsignificant while that of sulfur was significant on percent nitrogen derived from atmosphere. Both phosphorus and sulfur application resulted in increase in nitrogen fixation up to 38% and 33% over control, respectively. Nutrient uptake [nitrogen (N), phosphorus (P), and sulfur (S)] increased significantly with the application of phosphorus and sulfur and correlated positively with nitrogen fixation. There is direct involvement of sulfur in the process of nitrogen fixation whereas effect of phosphorus on nitrogen fixation is indirect mainly through enhanced growth and dry matter production.
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Claims 8
Claim · model-written summary
Phosphorus application had a non-significant effect on percent nitrogen derived from atmosphere in chickpea.
- Taxon
- chickpea
Cicer arietinume1 - Treatment
- phosphorus applicatione0
- Outcome
- percent nitrogen derived from atmospheree0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effect of phosphorus application was nonsignificant while that of sulfur was significant on percent nitrogen derived from atmosphere”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Sulfur application had a significant effect on percent nitrogen derived from atmosphere in chickpea.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- sulfure0
- Outcome
- percent nitrogen derived from atmospheree0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effect of phosphorus application was nonsignificant while that of sulfur was significant on percent nitrogen derived from atmosphere”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Phosphorus application increased nitrogen fixation in chickpea by up to 38% over control.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- phosphoruse0
- Outcome
- nitrogen fixatione0
- Direction
- increasee0
- Value
- 38%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both phosphorus and sulfur application resulted in increase in nitrogen fixation up to 38% and 33% over control, respectively”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Sulfur application increased nitrogen fixation in chickpea by up to 33% over control.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- sulfur applicatione0
- Outcome
- nitrogen fixatione0
- Direction
- increasee0
- Value
- 33%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both phosphorus and sulfur application resulted in increase in nitrogen fixation up to 38% and 33% over control, respectively”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Uptake of nitrogen, phosphorus and sulfur in chickpea increased significantly with phosphorus and sulfur application.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- application of phosphorus and sulfure0
- Outcome
- Nutrient uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nutrient uptake [nitrogen (N), phosphorus (P), and sulfur (S)] increased significantly with the application of phosphorus and sulfur”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Nutrient uptake in chickpea correlated positively with nitrogen fixation.
- Taxon
- chickpeaCicer arietinume1
- Outcome
- Nutrient uptakee0
- Direction
- positivelye0
- Comparator
- nitrogen fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nutrient uptake [nitrogen (N), phosphorus (P), and sulfur (S)] increased significantly with the application of phosphorus and sulfur and correlated positively with nitrogen fixation”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
The authors assert direct involvement of sulfur in the process of nitrogen fixation.
- Taxon
- chickpeaCicer arietinume1
- Compound
- sulfure0
- Outcome
- nitrogen fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There is direct involvement of sulfur in the process of nitrogen fixation”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
The authors assert that the effect of phosphorus on nitrogen fixation is indirect, mainly through enhanced growth and dry matter production.
- Taxon
- chickpeaCicer arietinume1
- Compound
- phosphoruse0
- Outcome
- nitrogen fixatione0
- Qualifier
- indirect mainly through enhanced growth and dry matter productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effect of phosphorus on nitrogen fixation is indirect mainly through enhanced growth and dry matter production”
e1“chickpea (Cicer arietinum L.)”
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See all 38 papers →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.