Abstract
Fertilizer in close proximity to seed can hamper emergence and early growth of seedlings. This study investigates whether phosphorus fertilizer placement with or close to seed affects emergence and early growth of chickpea (Cicer arietinum L.) and its relationship to soil texture. In pot culture studies with sandy soil, emergence and early growth were suppressed when triple superphosphate (TSP) and di-ammonium phosphate (DAP) were in contact with seed or banded 2cm directly below the seed; the effect of DAP was more detrimental than that of TSP. Placement of TSP at 5 cm directly below the seed did not hamper emergence in sandy soil although it still had a mild suppressive effect on early growth of chickpea. In clay soil, the recommended rate of TSP (100 kg TSP or 20 kg P ha- ) had little or no effect on emergence and negligible effect on subsequent seedling growth. In fields with clay loam soil, placement of the recommended rate of TSP with chickpea seeds in rows by a minimum-till planter was also found safe. In conclusion, the effect of phosphorus fertilizer placement in close proximity to chickpea seed was soil texture specific: in sandy soil the placement had deleterious effect on emergence and early growth while in clay soil there was little or no effect.
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Claims 5
Claim · model-written summary
Seed-contact or 2 cm sub-seed TSP suppressed chickpea emergence and early growth in sandy soil.
- Taxon
- chickpea
Cicer arietinume1 - Treatment
- triple superphosphate (TSP)e0
- Outcome
- emergence and early growthe0
- Direction
- suppressede0
- Setting
- sandy soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In pot culture studies with sandy soil, emergence and early growth were suppressed when triple superphosphate (TSP) and di-ammonium phosphate (DAP) were in contact with seed or banded 2cm directly below the seed”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Seed-contact or 2 cm sub-seed DAP suppressed chickpea emergence and early growth in sandy soil.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- di-ammonium phosphate (DAP)e0
- Outcome
- emergence and early growthe0
- Direction
- suppressede0
- Setting
- sandy soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In pot culture studies with sandy soil, emergence and early growth were suppressed when triple superphosphate (TSP) and di-ammonium phosphate (DAP) were in contact with seed or banded 2cm directly below the seed”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
DAP was more detrimental to chickpea than TSP.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- DAPe0
- Outcome
- effecte0
- Direction
- more detrimentale0
- Comparator
- TSPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of DAP was more detrimental than that of TSP”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
TSP placed 5 cm below seed mildly suppressed early chickpea growth.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- TSP at 5 cm directly below the seede1
- Outcome
- early growthe0
- Direction
- suppressivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it still had a mild suppressive effect on early growth of chickpea”
e1“Placement of TSP at 5 cm directly below the seed”
Claim · model-written summary
Recommended-rate TSP with chickpea seed was safe in clay-loam fields.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- recommended rate of TSP with chickpea seeds in rowse0
- Outcome
- safee0
- Direction
- safee0
- Setting
- fields with clay loam soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In fields with clay loam soil, placement of the recommended rate of TSP with chickpea seeds in rows by a minimum-till planter was also found safe.”
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See all 58 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.