Abstract
A field experiment was carried out during kharif 2021 (June-November) and 2022 (June-November) at the Agronomy Main Research Farm, Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar. The experiment was laid out in randomized complete block design with twelve treatments i.e. T1-RDF (80:40:40 kg N:P2O5:K2O ha-1), T2 - 20 kg N ha-1 at LCC score <4 with no basal N, T3 - 20 kg N ha-1 at LCC score <4 with 20 kg N ha-1 at basal, T4 - 20 g N ha-1 at SPAD value <35 with no basal N, T5- 20 kg N ha-1 at SPAD value <35 with 20 kg N ha-1 at basal, T6- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with no basal N, T7- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal, T8- 150 kg N ha-1 (N rich strip plot), T9- N omission plot, T10- STBN, T11- INM (20 kg N ha-1 as FYM at basal + 40 kg N ha-1 at tillering + 20 kg N ha-1 at PI stage), T12- Organic nutrient (FYM 10t ha-1 at basal + 2t ha-1 VC top dressing). Pooled analysis revealed that application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2), larger leaf area index (3.30), highest number of tillers (381 m-2) at harvest and maximum CGR of 18.73 g m-2 day-1 during 60 to 80 DAT followed by the treatment receiving 20 Kg N ha-1 at SPAD value <35 with 20 Kg N ha-1 at basal. Combined analysis of both years showed that application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded significantly higher grain yield (5.68 t ha-1), straw yield (6.57 t ha-1) and harvest index (47 %) with maximum net return 55982 Rs ha-1 and B:C ratio 1.82.
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Claims 10
Claim · model-written summary
Green Seeker guided N application produced maximum dry matter accumulation of 1194.1 g m-2.
- Taxon
- rice
Oryza sativat0 - Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale0
- Outcome
- dry matter accumulatione0
- Direction
- maximume0
- Value
- 1194.1 g m-2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
t0“Kharif rice”
Claim · model-written summary
The treatment produced a leaf area index of 3.30.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale1
- Outcome
- leaf area indexe0
- Direction
- largere0
- Value
- 3.30e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“larger leaf area index (3.30)”
t0“rice”
e1“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
Claim · model-written summary
The treatment produced 381 tillers m-2 at harvest.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale1
- Outcome
- number of tillerse0
- Direction
- higheste0
- Value
- 381 m-2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest number of tillers (381 m-2) at harvest”
t0“rice”
e1“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
Claim · model-written summary
The treatment produced maximum crop growth rate of 18.73 g m-2 day-1 at 60 to 80 DAT.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale1
- Outcome
- CGRe0
- Direction
- maximume0
- Value
- 18.73 g m-2 day-1e0
- Qualifier
- 60 to 80 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum CGR of 18.73 g m-2 day-1 during 60 to 80 DAT”
t0“rice”
e1“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
Claim · model-written summary
SPAD guided nitrogen treatment ranked second for growth parameters.
- Taxon
- riceOryza sativat0
- Treatment
- 20 Kg N ha-1 at SPAD value <35 with 20 Kg N ha-1 at basale0
- Outcome
- followed bye0
- Direction
- followed bye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed by the treatment receiving 20 Kg N ha-1 at SPAD value <35 with 20 Kg N ha-1 at basal”
t0“rice”
Claim · model-written summary
Green Seeker guided N application gave significantly higher grain yield of 5.68 t ha-1.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 5.68 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded significantly higher grain yield (5.68 t ha-1)”
t0“rice”
Claim · model-written summary
The treatment gave significantly higher straw yield of 6.57 t ha-1.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale1
- Outcome
- straw yielde0
- Value
- 6.57 t ha-1e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“straw yield (6.57 t ha-1)”
t0“rice”
e1“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
Claim · model-written summary
The treatment gave a harvest index of 47%.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale1
- Outcome
- harvest indexe0
- Value
- 47 %e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“harvest index (47 %)”
t0“rice”
e1“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
Claim · model-written summary
The treatment gave maximum net return of 55982 Rs ha-1.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale1
- Outcome
- net returne0
- Direction
- maximume0
- Value
- 55982 Rs ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum net return 55982 Rs ha-1”
t0“rice”
e1“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
Claim · model-written summary
The treatment gave a benefit to cost ratio of 1.82.
- Taxon
- riceOryza sativat0
- Treatment
- 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basale1
- Outcome
- B:C ratioe0
- Value
- 1.82e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B:C ratio 1.82”
t0“rice”
e1“application of 20 kg N ha-1 at Green seeker (GS) >1.25 RI with 20 kg N ha-1 at basal recorded maximum dry matter accumulation (1194.1 g m-2)”
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See all 2,045 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.