Abstract
This growth analysis experiment was carried out at Khon Kaen University Experimental Farm, Khon Kaen, Northeast Thailand in the 2000, in order to justify the effects of phosphorus (P) and potassium (K) levels added to Yasothon soil series (Oxic Paleustults) on dry matter yield and fodder quality of IS 23585 forage sorghum cultivar. The experiment was laid in a 4x4 factorial arranged in a randomized complete block design (RCBD) with four replications. The P levels used were 0, 37.50, 75.00 and 150.00 kg P2O5 ha(-1) and K levels were 0, 56.25, 112.50 and 225.00 kg K2O ha(-1). The results showed that total dry weight (yield) and other growth parameters in most sampling periods significantly increased with an increase in K levels but the increase was only up to K1. Higher levels of both P and K had no significant effect on total dry weight (yield) and other growth. There were no consistent trends due to both P and K application rates. However, mean Leaf Area Index (LAI) reached a maximum value of 10.21 (P3K3) at 8 weeks after emergence (WAE) and then a decline to 5.37 (P0K3) at 10 WAE. K significantly affected LAI only at 2 and 6 WAE. Crop growth rate (CGR) and leaf area duration (D) significantly increased up to K1, whilst P did not. Both optimum total dry weight of 1,7221 kg ha(-1) (10 WAE) and seed yields of 5,169 kg ha(-1) were obtained from P0K1. Both P and K had no significant effect on 1000-seed weight. P did not affect brix value, whilst K significantly depressed this parameter. K had no significant effect on crude protein (CP), whilst P did. P had no significant effect on neutral detergent fibre (NDF), whilst K significantly did it. Both P and K had no significant effect on both acid detergent fibre (ADF) and ruminal dry matter degradability (DMD) of the sorghum plants.
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Claims 18
Claim · model-written summary
Potassium increased total dry weight and growth parameters only through K1.
- Taxon
- Sorghum bicolor L. Moench
Sorghum bicolort0 - Treatment
- increase in K levelse0
- Outcome
- total dry weight (yield) and other growth parameterse0
- Direction
- increasede0
- Qualifier
- up to K1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“total dry weight (yield) and other growth parameters in most sampling periods significantly increased with an increase in K levels but the increase was only up to K1”
Claim · model-written summary
Higher phosphorus and potassium levels had no significant effect on total dry weight or other growth.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Higher levels of both P and Ke0
- Outcome
- total dry weight (yield) and other growthe0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“Higher levels of both P and K had no significant effect on total dry weight (yield) and other growth”
Claim · model-written summary
Mean leaf area index reached 10.21 at P3K3 eight weeks after emergence.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- P3K3e0
- Outcome
- mean Leaf Area Index (LAI)e0
- Direction
- maximume0
- Value
- 10.21e0
- Qualifier
- 8 weeks after emergence (WAE)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“mean Leaf Area Index (LAI) reached a maximum value of 10.21 (P3K3) at 8 weeks after emergence (WAE)”
Claim · model-written summary
Mean leaf area index declined to 5.37 at P0K3 ten weeks after emergence.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- P0K3e0
- Outcome
- Leaf Area Index (LAI)e1
- Direction
- declinee0
- Value
- 5.37e0
- Qualifier
- 10 WAEe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“then a decline to 5.37 (P0K3) at 10 WAE”
e1“mean Leaf Area Index (LAI) reached a maximum value of 10.21 (P3K3) at 8 weeks after emergence (WAE)”
Claim · model-written summary
Potassium significantly affected leaf area index only at two and six weeks after emergence.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Ke0
- Outcome
- LAIe0
- Qualifier
- 2 and 6 WAEe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“K significantly affected LAI only at 2 and 6 WAE”
Claim · model-written summary
Potassium increased crop growth rate and leaf area duration through K1.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- K1e0
- Outcome
- Crop growth rate (CGR) and leaf area duration (D)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“Crop growth rate (CGR) and leaf area duration (D) significantly increased up to K1”
Claim · model-written summary
Phosphorus did not significantly increase crop growth rate or leaf area duration.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Pe0
- Outcome
- Crop growth rate (CGR) and leaf area duration (D)e0
- Direction
- did note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“Crop growth rate (CGR) and leaf area duration (D) significantly increased up to K1, whilst P did not”
Claim · model-written summary
P0K1 produced optimum total dry weight of 1,7221 kg ha(-1) at ten weeks after emergence.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- P0K1e0
- Outcome
- total dry weighte0
- Direction
- optimume0
- Value
- 1,7221 kg ha(-1)e0
- Qualifier
- 10 WAEe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“optimum total dry weight of 1,7221 kg ha(-1) (10 WAE) and seed yields of 5,169 kg ha(-1) were obtained from P0K1”
Claim · model-written summary
P0K1 produced a seed yield of 5,169 kg ha(-1).
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- P0K1e0
- Outcome
- seed yieldse0
- Value
- 5,169 kg ha(-1)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“seed yields of 5,169 kg ha(-1) were obtained from P0K1”
Claim · model-written summary
Neither phosphorus nor potassium significantly affected 1000-seed weight.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Both P and Ke0
- Outcome
- 1000-seed weighte0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“Both P and K had no significant effect on 1000-seed weight”
Claim · model-written summary
Phosphorus did not affect brix value.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Pe0
- Outcome
- brix valuee0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“P did not affect brix value”
Claim · model-written summary
Potassium significantly depressed brix value.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Ke0
- Outcome
- brix valuee1
- Direction
- depressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“K significantly depressed this parameter”
e1“P did not affect brix value”
Claim · model-written summary
Potassium had no significant effect on crude protein.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Ke0
- Outcome
- crude protein (CP)e0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“K had no significant effect on crude protein (CP)”
Claim · model-written summary
Phosphorus affected crude protein.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Pe0
- Outcome
- crude protein (CP)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“K had no significant effect on crude protein (CP), whilst P did”
Claim · model-written summary
Phosphorus had no significant effect on neutral detergent fibre.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Pe0
- Outcome
- neutral detergent fibre (NDF)e0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“P had no significant effect on neutral detergent fibre (NDF)”
Claim · model-written summary
Potassium significantly affected neutral detergent fibre.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Ke0
- Outcome
- neutral detergent fibre (NDF)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“P had no significant effect on neutral detergent fibre (NDF), whilst K significantly did it”
Claim · model-written summary
Neither phosphorus nor potassium significantly affected acid detergent fibre.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Both P and Ke0
- Outcome
- acid detergent fibre (ADF)e0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“Both P and K had no significant effect on both acid detergent fibre (ADF) and ruminal dry matter degradability (DMD)”
Claim · model-written summary
Neither phosphorus nor potassium significantly affected ruminal dry matter degradability.
- Taxon
- Sorghum bicolor L. MoenchSorghum bicolort0
- Treatment
- Both P and Ke0
- Outcome
- ruminal dry matter degradability (DMD)e0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Sorghum bicolor L. Moench”
e0“Both P and K had no significant effect on both acid detergent fibre (ADF) and ruminal dry matter degradability (DMD)”
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See all 13 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.