Abstract
Abstract The effects of seeding rate (30, 60 and 90 seeds m −2 ), seeding date (14 January, 28 January and 12 February), seed weight (0.18 and 0.25 g seed −1 ), seeding depth (3 and 6 cm), and phosphorus fertilization rate (17.5, 35.0 and 52.5 kg P ha −1 ) and placement method (banded or broadcasted) on field pea ( Pisum sativum L.) development and seed yields were investigated in irrigated field experiments conducted in northern Jordan in 2000 and 2001. Results and treatment responses were consistent in both years. Seeding rate, seeding date, seed weight and rate and method of phosphorus fertilization had significant effects on most traits measured; planting depth however did not affect any of the traits. Generally a positive correlation was observed between each factor and seed yield and yield components, with the exception of a negative correlation between seeding rate and yield components, and seeding date and yield and yield components. Increase in seeding rate from 30 to 90 seeds m −2 , and increase in P fertilization from 17.5 to 52.5 kg ha −1 alone increased seed yields by 50 and 41 %, respectively. Each delay of 2 weeks for seeding from mid‐January resulted in reductions of 12 % in seed yields. Overall, the results revealed that a combination of early seeding (14 January), of large seeds at an high seeding rate (90 seeds m −2 ), with P fertilizer banding (52.5 kg P ha −1 ) maximize field pea yields in irrigated fields in semi‐arid Mediterranean environments. With such management pea seed yields can be as high as 2800 kg ha −1 .
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Claims 9
Claim · model-written summary
Seeding rate, date, seed weight, and phosphorus fertilization rate and method significantly affected most measured field pea traits.
Verbatim
t0“Field Pea”
e0“Seeding rate, seeding date, seed weight and rate and method of phosphorus fertilization had significant effects on most traits measured”
Claim · model-written summary
Planting depth did not affect measured field pea traits.
Not reportedComparator
Verbatim
t0“Field Pea”
e0“planting depth however did not affect any of the traits”
Claim · model-written summary
Higher seeding rate was negatively correlated with yield components.
Verbatim
t0“Field Pea”
e0“a negative correlation between seeding rate and yield components”
Claim · model-written summary
Later seeding was negatively correlated with seed yield and yield components.
Verbatim
t0“Field Pea”
e0“a negative correlation between seeding rate and yield components, and seeding date and yield and yield components”
Claim · model-written summary
Raising seeding rate from 30 to 90 seeds m −2 increased seed yield by 50%.
- Taxon
- Field Peat0
- Treatment
- seeding rate from 30 to 90 seeds m −2e0
- Outcome
- seed yieldse0
- Direction
- increasede0
- Value
- 50e0
Not reportedComparator
Verbatim
t0“Field Pea”
e0“Increase in seeding rate from 30 to 90 seeds m −2 , and increase in P fertilization from 17.5 to 52.5 kg ha −1 alone increased seed yields by 50 and 41 %, respectively.”
Claim · model-written summary
Increasing P fertilization from 17.5 to 52.5 kg ha −1 increased seed yield by 41%.
- Taxon
- Field Peat0
- Treatment
- P fertilization from 17.5 to 52.5 kg ha −1e0
- Outcome
- seed yieldse0
- Direction
- increasede0
- Value
- 41 %e0
Not reportedComparator
Verbatim
t0“Field Pea”
e0“Increase in seeding rate from 30 to 90 seeds m −2 , and increase in P fertilization from 17.5 to 52.5 kg ha −1 alone increased seed yields by 50 and 41 %, respectively.”
Claim · model-written summary
Each two-week seeding delay from mid-January reduced seed yield by 12%.
- Taxon
- Field Peat0
- Treatment
- delay of 2 weeks for seeding from mid‐Januarye0
- Outcome
- seed yieldse0
- Direction
- reductionse0
- Value
- 12 %e0
Not reportedComparator
Verbatim
t0“Field Pea”
e0“Each delay of 2 weeks for seeding from mid‐January resulted in reductions of 12 % in seed yields.”
Claim · model-written summary
Early seeding, large seeds, high seeding rate, and banded P maximized irrigated field pea yield.
- Taxon
- field peae0
- Treatment
- a combination of early seeding (14 January), of large seeds at an high seeding rate (90 seeds m −2 ), with P fertilizer banding (52.5 kg P ha −1 )e0
- Outcome
- field pea yieldse0
- Direction
- maximizee0
- Setting
- irrigated fields in semi‐arid Mediterranean environmentse0
Not reportedComparator
Verbatim
e0“a combination of early seeding (14 January), of large seeds at an high seeding rate (90 seeds m −2 ), with P fertilizer banding (52.5 kg P ha −1 ) maximize field pea yields in irrigated fields in semi‐arid Mediterranean environments”
Claim · model-written summary
This seeding and fertilization management can yield up to 2800 kg ha −1 pea seed.
Verbatim
e0“With such management pea seed yields can be as high as 2800 kg ha −1 .”
t0“Field Pea”
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