Abstract
A three year field experiment was conducted during September -March of 2010-2011 to 2012-2013 at Agricultural College and Research Institute, Killikulam to study the influence of humic acid with graded levels of inorganic fertilizers on productivity, nutrient uptake, economic and soil fertility of brinjal var KKM1. The experiment was carried out in Randomized Block Design replicated thrice with 11 treatments. Humic acid was applied through both in soil and foliar spray with 75 per cent RDF (N 75 P 37.5 K 22.5 ). Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control. However, 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.1 per cent HA (FS) /ha had higher plant height, number of branches, days to 50 per cent flowering, number of fruits per plant, single fruit weight, fruit yield, total dry matter production, net return, B:C ratio, N,P and K uptake. Significant built up of organic carbon (0.92 %), available N (291.5 kg/ha), available P (25.4 kg / ha) and available K (293.7 kg / ha) was registered with 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha. The maximum balance of N, P and K (25.5, 8.6 and 25.2 kg/ha, respectively) were recorded under the treatment with application of 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha.
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Claims 20
Claim · model-written summary
The 75 per cent RDF with 10 kg HA (SA) and 0.2 per cent HA (FS) per ha gave a significantly higher plant height of 112.0 cm than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- plant highte1
- Direction
- highere1
- Value
- 112.0 cme1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher days to 50 per cent flowering (56.4) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- days to 50 per cent floweringe1
- Direction
- highere1
- Value
- 56.4e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly more branches per plant (9.4) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- number of branches/plante1
- Direction
- highere1
- Value
- 9.4e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly more fruits per plant (25.3) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- number of fruits /plante1
- Direction
- highere1
- Value
- 25.3e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher single fruit weight (69.9 g) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- single fruit weighte1
- Direction
- highere1
- Value
- 69.9 ge1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher fruit yield (33.4 t/ha) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- fruit yielde1
- Direction
- highere1
- Value
- 33.4 t/hae1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher total dry matter production (10.08 t/ ha) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- total dry matter productione1
- Direction
- highere1
- Value
- 10.08 t/ hae1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher net return (Rs. 1,33,131 / ha) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- net returne1
- Direction
- highere1
- Value
- Rs. 1,33,131 / hae1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave a significantly higher B:C ratio (4.29) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- B:C ratioe1
- Direction
- highere1
- Value
- 4.29e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher N uptake (143.1 kg/ha) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- uptakee1
- Direction
- highere1
- Value
- 143.1e1
- Qualifier
- Ne1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher P uptake (33.3 kg/ha) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- uptakee1
- Direction
- highere1
- Value
- 33.3e1
- Qualifier
- Pe1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The same treatment gave significantly higher K uptake (148.6 kg/ha) than control.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae1
- Outcome
- uptakee1
- Direction
- highere1
- Value
- 148.6e1
- Qualifier
- Ke1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e1“Application of 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha produced significantly higher plant hight (112.0 cm), days to 50 per cent flowering (56.4), number of branches/plant (9.4), number of fruits /plant (25.3), single fruit weight ( 69.9 g), fruit yield (33.4 t/ha), total dry matter production (10.08 t/ ha), net return (Rs. 1,33,131 / ha) and B:C ratio (4.29), N, P and K (143.1, 33.3 and 148.6 kg/ha, respectively) uptake compared to control”
Claim · model-written summary
The 75 per cent RDF with 10 kg HA (SA) and 0.2 per cent HA (FS) per ha significantly built up soil organic carbon (0.92 %).
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae2
- Outcome
- organic carbone2
- Direction
- built upe2
- Value
- 0.92 %e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e2“Significant built up of organic carbon (0.92 %), available N (291.5 kg/ha), available P (25.4 kg / ha) and available K (293.7 kg / ha) was registered with 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha”
Claim · model-written summary
The same treatment significantly built up available N to 291.5 kg/ha in soil.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae2
- Outcome
- available Ne2
- Direction
- built upe2
- Value
- 291.5 kg/hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e2“Significant built up of organic carbon (0.92 %), available N (291.5 kg/ha), available P (25.4 kg / ha) and available K (293.7 kg / ha) was registered with 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha”
Claim · model-written summary
The same treatment significantly built up available P to 25.4 kg/ha in soil.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae2
- Outcome
- available Pe2
- Direction
- built upe2
- Value
- 25.4 kg / hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e2“Significant built up of organic carbon (0.92 %), available N (291.5 kg/ha), available P (25.4 kg / ha) and available K (293.7 kg / ha) was registered with 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha”
Claim · model-written summary
The same treatment significantly built up available K to 293.7 kg/ha in soil.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae2
- Outcome
- available Ke2
- Direction
- built upe2
- Value
- 293.7 kg / hae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e2“Significant built up of organic carbon (0.92 %), available N (291.5 kg/ha), available P (25.4 kg / ha) and available K (293.7 kg / ha) was registered with 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha”
Claim · model-written summary
The maximum N balance (25.5 kg/ha) was recorded under 75 per cent RDF with 10 kg HA (SA) and 0.2 per cent HA (FS) per ha.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- application of 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae3
- Outcome
- balancee3
- Direction
- maximume3
- Value
- 25.5e3
- Qualifier
- Ne3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e3“The maximum balance of N, P and K (25.5, 8.6 and 25.2 kg/ha, respectively) were recorded under the treatment with application of 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha”
Claim · model-written summary
The maximum P balance (8.6 kg/ha) was recorded under 75 per cent RDF with 10 kg HA (SA) and 0.2 per cent HA (FS) per ha.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- application of 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae3
- Outcome
- balancee3
- Direction
- maximume3
- Value
- 8.6e3
- Qualifier
- Pe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e3“The maximum balance of N, P and K (25.5, 8.6 and 25.2 kg/ha, respectively) were recorded under the treatment with application of 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha”
Claim · model-written summary
The maximum K balance (25.2 kg/ha) was recorded under 75 per cent RDF with 10 kg HA (SA) and 0.2 per cent HA (FS) per ha.
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- application of 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /hae3
- Outcome
- balancee3
- Direction
- maximume3
- Value
- 25.2e3
- Qualifier
- Ke3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e3“The maximum balance of N, P and K (25.5, 8.6 and 25.2 kg/ha, respectively) were recorded under the treatment with application of 75 per cent RDF + 10 kg HA (SA) + 0.2 per cent HA (FS) /ha”
Claim · model-written summary
The 75 per cent RDF with 10 kg HA (SA) and 0.1 per cent HA (FS) per ha had higher plant height, branches, flowering days, fruits per plant, fruit weight, fruit yield, dry matter, net return, B:C ratio and N, P and K uptake (ten items grouped to fit the claim budget).
- Taxon
- brinjal
Solanum melongenat0 - Treatment
- 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.1 per cent HA (FS) /hae4
- Outcome
- plant height, number of branches, days to 50 per cent flowering, number of fruits per plant, single fruit weight, fruit yield, total dry matter production, net return, B:C ratio, N,P and K uptakee4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“brinjal (Solanum melongena L.)”
e4“However, 75 per cent RDF (N 75 P 37.5 K 22.5 ) + 10 kg HA (SA) + 0.1 per cent HA (FS) /ha had higher plant height, number of branches, days to 50 per cent flowering, number of fruits per plant, single fruit weight, fruit yield, total dry matter production, net return, B:C ratio, N,P and K uptake”
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