Abstract
A Field experiment was conducted on effect of various levels of potassium application on soil potassium fractions and sugarcane yield at Regional Agricultural research station, Anakapalle, Andhra Pradesh. The experiment comprised six treatments and four replications in Randomized Block Design. The treatments comprised of T1:Control (0 K), T2:50% Recommended dose of Potassium (60 kg K/ha),T3:75% Recommended dose of Potassium (90 kg K/ha),T4:100% Recommended dose of Potassium (120 kg K/ha),T5:125% Recommended dose of Potassium (150 kg K/ha) and T6:150% Recommended dose of Potassium (180 kg K/ha). Results revealed that number of milliable cane, cane yield (t/ha) and sugar yield (t/ha) was found to be significantly high with treatment receiving 150% recommended dose of fertilizers (79855, 82.12 t/ha and 12.04 t/ha respectively), however, it was statistically on par with the treatments receiving 125% recommended dose of potassium fertilizers(79855,82.12 t/ha and 12.04 t/ha respectively) and 100% recommended dose of potassium fertilizers application (79315,81.86 t/ha and 11.57 t/ha respectively). Increasing levels of K significantly increased all the K fractions. However, highest value of water soluble K (29.5 mg kg-1 at 0-15 cm depth and 31.6 mg kg-1 at 15-30 cm ) exchangeable K (205 mg kg-1 at 0-15 cm depth and 228 mg kg-1 at 15-30 cm depth) non-exchangeable K (854 mg kg-1 at 0-15 cm depth and 971 mg kg-1 at 15-30 cm depth), lattice K (2110and 2381 mg kg-1 at 0-15 and 15-30 cm ) and total K (3267 and 3718 mg kg-1) were recorded with the application of with the application of 150% recommended dose of potassium application (180 kg ha-1) followed by application of 125% recommended dose of potassium application (150 kg ha-1) . The sequential order of dominance of different fractions of K were lattice K>nonexchangeable K> exchangeable K and water soluble K. The per cent contribution of different fractions of K to total K were followed in the order of lattice K (64.02 to 74.94% at 0-15 and 15-30 cm depth), non-exchangeabl K (15.46 to 17.79% at 0-15 and 26.4 to 27.43 % 15-30 cm depth), exchangeable K (6.32 to 8.39% and 5.60 to 7.69% at 0-15 and 15-30 cm depth), and water soluble K (0.81-0.90% and 0.69 to 0.85% at 0-15 and 15-30 cm depth) There exists positive and significant correlation among various K fractions indicating dynamic equilibrium.
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Claims 13
Claim · model-written summary
The 150% potassium dose produced significantly high millable cane number.
- Taxon
- Sugarcanet0
- Treatment
- 150% Recommended dose of Potassium (180 kg K/ha)e1
- Outcome
- number of milliable canee0
- Direction
- highe0
- Value
- 79855e0
Not reportedComparator
Verbatim
e0“number of milliable cane, cane yield (t/ha) and sugar yield (t/ha) was found to be significantly high with treatment receiving 150% recommended dose of fertilizers (79855, 82.12 t/ha and 12.04 t/ha respectively)”
e1“T6:150% Recommended dose of Potassium (180 kg K/ha)”
t0“Sugarcane”
Claim · model-written summary
The 150% potassium dose produced significantly high cane yield of 82.12 t/ha.
- Taxon
- Sugarcanet0
- Treatment
- 150% Recommended dose of Potassium (180 kg K/ha)e1
- Outcome
- cane yielde0
- Direction
- highe0
- Value
- 82.12 t/hae0
Not reportedComparator
Verbatim
e0“number of milliable cane, cane yield (t/ha) and sugar yield (t/ha) was found to be significantly high with treatment receiving 150% recommended dose of fertilizers (79855, 82.12 t/ha and 12.04 t/ha respectively)”
e1“T6:150% Recommended dose of Potassium (180 kg K/ha)”
t0“Sugarcane”
Claim · model-written summary
The 150% potassium dose produced significantly high sugar yield of 12.04 t/ha.
- Taxon
- Sugarcanet0
- Treatment
- 150% Recommended dose of Potassium (180 kg K/ha)e1
- Outcome
- sugar yielde0
- Direction
- highe0
- Value
- 12.04 t/hae0
Not reportedComparator
Verbatim
e0“number of milliable cane, cane yield (t/ha) and sugar yield (t/ha) was found to be significantly high with treatment receiving 150% recommended dose of fertilizers (79855, 82.12 t/ha and 12.04 t/ha respectively)”
e1“T6:150% Recommended dose of Potassium (180 kg K/ha)”
t0“Sugarcane”
Claim · model-written summary
Yields and millable cane under 150% K were statistically comparable to 125% K.
Verbatim
e0“it was statistically on par with the treatments receiving 125% recommended dose of potassium fertilizers(79855,82.12 t/ha and 12.04 t/ha respectively)”
e1“treatment receiving 150% recommended dose of fertilizers”
t0“Sugarcane”
Claim · model-written summary
Yields and millable cane under 150% K were statistically comparable to 100% K.
Verbatim
e0“it was statistically on par with the treatments receiving 125% recommended dose of potassium fertilizers(79855,82.12 t/ha and 12.04 t/ha respectively) and 100% recommended dose of potassium fertilizers application (79315,81.86 t/ha and 11.57 t/ha respectively)”
e1“treatment receiving 150% recommended dose of fertilizers”
t0“Sugarcane”
Claim · model-written summary
Increasing K significantly increased all soil K fractions.
Not reportedTaxon
Verbatim
e0“Increasing levels of K significantly increased all the K fractions.”
Claim · model-written summary
Water soluble soil K was highest under 150% K.
- Treatment
- 150% recommended dose of potassium application (180 kg ha-1)e1
- Outcome
- water soluble Ke0
- Direction
- higheste0
- Value
- 29.5 mg kg-1e0
- Qualifier
- 31.6 mg kg-1 at 15-30 cme0
Not reportedTaxon
Verbatim
e0“highest value of water soluble K (29.5 mg kg-1 at 0-15 cm depth and 31.6 mg kg-1 at 15-30 cm )”
e1“150% recommended dose of potassium application (180 kg ha-1)”
Claim · model-written summary
Exchangeable soil K was highest under 150% K.
- Treatment
- 150% recommended dose of potassium application (180 kg ha-1)e2
- Outcome
- exchangeable Ke0
- Direction
- higheste1
- Value
- 205 mg kg-1e0
- Qualifier
- 228 mg kg-1 at 15-30 cm depthe0
Not reportedTaxon
Verbatim
e0“exchangeable K (205 mg kg-1 at 0-15 cm depth and 228 mg kg-1 at 15-30 cm depth)”
e1“highest value of water soluble K”
e2“150% recommended dose of potassium application (180 kg ha-1)”
Claim · model-written summary
Non-exchangeable soil K was highest under 150% K.
- Treatment
- 150% recommended dose of potassium application (180 kg ha-1)e2
- Outcome
- non-exchangeable Ke0
- Direction
- higheste1
- Value
- 854 mg kg-1e0
- Qualifier
- 971 mg kg-1 at 15-30 cm depthe0
Not reportedTaxon
Verbatim
e0“non-exchangeable K (854 mg kg-1 at 0-15 cm depth and 971 mg kg-1 at 15-30 cm depth)”
e1“highest value of water soluble K”
e2“150% recommended dose of potassium application (180 kg ha-1)”
Claim · model-written summary
Lattice soil K was highest under 150% K.
- Treatment
- 150% recommended dose of potassium application (180 kg ha-1)e2
- Outcome
- lattice Ke0
- Direction
- higheste1
- Value
- 2110and 2381 mg kg-1e0
Not reportedTaxon
Verbatim
e0“lattice K (2110and 2381 mg kg-1 at 0-15 and 15-30 cm )”
e1“highest value of water soluble K”
e2“150% recommended dose of potassium application (180 kg ha-1)”
Claim · model-written summary
Total soil K was highest under 150% K.
- Treatment
- 150% recommended dose of potassium application (180 kg ha-1)e2
- Outcome
- total Ke0
- Direction
- higheste1
- Value
- 3267 and 3718 mg kg-1e0
Not reportedTaxon
Verbatim
e0“total K (3267 and 3718 mg kg-1)”
e1“highest value of water soluble K”
e2“150% recommended dose of potassium application (180 kg ha-1)”
Claim · model-written summary
Soil K fractions ranked lattice above nonexchangeable above exchangeable and soluble K.
- Outcome
- sequential order of dominance of different fractions of Ke0
- Qualifier
- lattice K>nonexchangeable K> exchangeable K and water soluble Ke0
Not reportedTaxon
Verbatim
e0“The sequential order of dominance of different fractions of K were lattice K>nonexchangeable K> exchangeable K and water soluble K.”
Claim · model-written summary
Soil K fractions had significant positive correlations.
Not reportedTaxon
Verbatim
e0“There exists positive and significant correlation among various K fractions indicating dynamic equilibrium.”
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See all 57 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.