Abstract
A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.). Experiment was conducted under two cultivation methods, in a triplicate split-plot design (SPD). The main-plots were allocated to 6 combinations of 2 DSR cultivation approaches, viz. growing DSR in ploughed land (CTDSR); and growing DSR without tilling the land (ZTDSR); and 3 water regimes [adequate water; water supply at 20% available soil moisture exhaustion (ASME); and 40% ASME + silicon (Si) supply @80 kg/ha]. Sub-plots had 3 N supply decisions, viz. 100% recommended rate of N (RRN: 150 kg/ha); NutrientExpert (NE) + leaf colour chart (LCC); and NE + soil plant analysis development (SPAD) meter-based N scheduling. Conventional till-direct seeded rice produced 1.9, 3.1 and 5.7% greater grain yield, grain protein content and protein yield, respectively, over ZTDSR; the respective improvement in grain N, P and K uptake was 5.9, 7.9 and 4.9%. Adequate water regime resulted in 11.5, 7.3 and 18.7% more grain yield, grain protein content and protein yield, respectively, over water supply at 20% ASME with concomitant enhancement in grain N, P and K uptake of 19, 24 and 23%, respectively. A significant improvement in grain yield (9.2%), grain protein (11.7%) content and protein yield (22.1%) was detected with NE® + SPAD meter- based N application over RRN; the N, P and K uptake in grain also spiked by 22.1, 42.1 and 31.7%, respectively. Hence, NE + SPAD-based N application and adequate water regime (irrigation at 72 h of drying of surface water) could be beneficial for improving yield and quality of both CA-based and conventionally cultivated DSR.
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Claims 19
Claim · model-written summary
Conventional till-direct seeded rice produced 1.9% greater grain yield than ZTDSR.
- Taxon
- Oryza sativa
Oryza sativae0 - Material
- basmatie0
- Treatment
- Conventional till-direct seeded ricee1
- Outcome
- grain yielde1
- Direction
- greatere1
- Value
- 1.9e1
- Comparator
- ZTDSRe1
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e1“Conventional till-direct seeded rice produced 1.9, 3.1 and 5.7% greater grain yield, grain protein content and protein yield, respectively, over ZTDSR; the respective improvement in grain N, P and K uptake was 5.9, 7.9 and 4.9%”
Claim · model-written summary
Conventional till-direct seeded rice produced 3.1% greater grain protein content than ZTDSR.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Conventional till-direct seeded ricee1
- Outcome
- grain protein contente1
- Direction
- greatere1
- Value
- 3.1e1
- Comparator
- ZTDSRe1
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e1“Conventional till-direct seeded rice produced 1.9, 3.1 and 5.7% greater grain yield, grain protein content and protein yield, respectively, over ZTDSR; the respective improvement in grain N, P and K uptake was 5.9, 7.9 and 4.9%”
Claim · model-written summary
Conventional till-direct seeded rice produced 5.7% greater protein yield than ZTDSR.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Conventional till-direct seeded ricee1
- Outcome
- protein yielde1
- Direction
- greatere1
- Value
- 5.7e1
- Comparator
- ZTDSRe1
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e1“Conventional till-direct seeded rice produced 1.9, 3.1 and 5.7% greater grain yield, grain protein content and protein yield, respectively, over ZTDSR; the respective improvement in grain N, P and K uptake was 5.9, 7.9 and 4.9%”
Claim · model-written summary
Conventional till-direct seeded rice improved grain N, P and K uptake; grain N uptake rose by 5.9% over ZTDSR.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Conventional till-direct seeded ricee1
- Outcome
- grain N, P and K uptakee1
- Direction
- improvemente1
- Value
- 5.9e1
- Comparator
- ZTDSRe1
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e1“Conventional till-direct seeded rice produced 1.9, 3.1 and 5.7% greater grain yield, grain protein content and protein yield, respectively, over ZTDSR; the respective improvement in grain N, P and K uptake was 5.9, 7.9 and 4.9%”
Claim · model-written summary
Conventional till-direct seeded rice increased grain P uptake by 7.9% over ZTDSR.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Conventional till-direct seeded ricee1
- Outcome
- grain N, P and K uptakee1
- Direction
- improvemente1
- Value
- 7.9e1
- Comparator
- ZTDSRe1
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e1“Conventional till-direct seeded rice produced 1.9, 3.1 and 5.7% greater grain yield, grain protein content and protein yield, respectively, over ZTDSR; the respective improvement in grain N, P and K uptake was 5.9, 7.9 and 4.9%”
Claim · model-written summary
Conventional till-direct seeded rice increased grain K uptake by 4.9% over ZTDSR.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Conventional till-direct seeded ricee1
- Outcome
- grain N, P and K uptakee1
- Direction
- improvemente1
- Value
- 4.9e1
- Comparator
- ZTDSRe1
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e1“Conventional till-direct seeded rice produced 1.9, 3.1 and 5.7% greater grain yield, grain protein content and protein yield, respectively, over ZTDSR; the respective improvement in grain N, P and K uptake was 5.9, 7.9 and 4.9%”
Claim · model-written summary
Adequate water regime produced 11.5% more grain yield than water supply at 20% ASME.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Adequate water regimee2
- Outcome
- grain yielde2
- Direction
- moree2
- Value
- 11.5e2
- Comparator
- water supply at 20% ASMEe2
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e2“Adequate water regime resulted in 11.5, 7.3 and 18.7% more grain yield, grain protein content and protein yield, respectively, over water supply at 20% ASME with concomitant enhancement in grain N, P and K uptake of 19, 24 and 23%, respectively”
Claim · model-written summary
Adequate water regime produced 7.3% more grain protein content than water supply at 20% ASME.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Adequate water regimee2
- Outcome
- grain protein contente2
- Direction
- moree2
- Value
- 7.3e2
- Comparator
- water supply at 20% ASMEe2
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e2“Adequate water regime resulted in 11.5, 7.3 and 18.7% more grain yield, grain protein content and protein yield, respectively, over water supply at 20% ASME with concomitant enhancement in grain N, P and K uptake of 19, 24 and 23%, respectively”
Claim · model-written summary
Adequate water regime produced 18.7% more protein yield than water supply at 20% ASME.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Adequate water regimee2
- Outcome
- protein yielde2
- Direction
- moree2
- Value
- 18.7e2
- Comparator
- water supply at 20% ASMEe2
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e2“Adequate water regime resulted in 11.5, 7.3 and 18.7% more grain yield, grain protein content and protein yield, respectively, over water supply at 20% ASME with concomitant enhancement in grain N, P and K uptake of 19, 24 and 23%, respectively”
Claim · model-written summary
Adequate water regime enhanced grain N uptake by 19% relative to water supply at 20% ASME.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Adequate water regimee2
- Outcome
- grain N, P and K uptakee2
- Direction
- enhancemente2
- Value
- 19e2
- Comparator
- water supply at 20% ASMEe2
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e2“Adequate water regime resulted in 11.5, 7.3 and 18.7% more grain yield, grain protein content and protein yield, respectively, over water supply at 20% ASME with concomitant enhancement in grain N, P and K uptake of 19, 24 and 23%, respectively”
Claim · model-written summary
Adequate water regime enhanced grain P uptake by 24% relative to water supply at 20% ASME.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Adequate water regimee2
- Outcome
- grain N, P and K uptakee2
- Direction
- enhancemente2
- Value
- 24e2
- Comparator
- water supply at 20% ASMEe2
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e2“Adequate water regime resulted in 11.5, 7.3 and 18.7% more grain yield, grain protein content and protein yield, respectively, over water supply at 20% ASME with concomitant enhancement in grain N, P and K uptake of 19, 24 and 23%, respectively”
Claim · model-written summary
Adequate water regime enhanced grain K uptake by 23% relative to water supply at 20% ASME.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- Adequate water regimee2
- Outcome
- grain N, P and K uptakee2
- Direction
- enhancemente2
- Value
- 23e2
- Comparator
- water supply at 20% ASMEe2
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e2“Adequate water regime resulted in 11.5, 7.3 and 18.7% more grain yield, grain protein content and protein yield, respectively, over water supply at 20% ASME with concomitant enhancement in grain N, P and K uptake of 19, 24 and 23%, respectively”
Claim · model-written summary
SPAD meter-based N application significantly improved grain yield by 9.2% over RRN.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- NE® + SPAD meter- based N applicatione3
- Outcome
- grain yielde3
- Direction
- improvemente3
- Value
- 9.2%e3
- Comparator
- RRNe3
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e3“A significant improvement in grain yield (9.2%), grain protein (11.7%) content and protein yield (22.1%) was detected with NE® + SPAD meter- based N application over RRN”
Claim · model-written summary
SPAD meter-based N application significantly improved grain protein content by 11.7% over RRN.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- NE® + SPAD meter- based N applicatione3
- Outcome
- grain proteine3
- Direction
- improvemente3
- Value
- 11.7%e3
- Comparator
- RRNe3
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e3“A significant improvement in grain yield (9.2%), grain protein (11.7%) content and protein yield (22.1%) was detected with NE® + SPAD meter- based N application over RRN”
Claim · model-written summary
SPAD meter-based N application significantly improved protein yield by 22.1% over RRN.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- NE® + SPAD meter- based N applicatione3
- Outcome
- protein yielde3
- Direction
- improvemente3
- Value
- 22.1%e3
- Comparator
- RRNe3
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e3“A significant improvement in grain yield (9.2%), grain protein (11.7%) content and protein yield (22.1%) was detected with NE® + SPAD meter- based N application over RRN”
Claim · model-written summary
SPAD meter-based N application increased grain N uptake by 22.1% over RRN.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- NE® + SPAD meter- based N applicatione3
- Outcome
- N, P and K uptake in graine4
- Direction
- spikede4
- Value
- 22.1e4
- Comparator
- RRNe3
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e3“A significant improvement in grain yield (9.2%), grain protein (11.7%) content and protein yield (22.1%) was detected with NE® + SPAD meter- based N application over RRN”
e4“the N, P and K uptake in grain also spiked by 22.1, 42.1 and 31.7%, respectively”
Claim · model-written summary
SPAD meter-based N application increased grain P uptake by 42.1% over RRN.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- NE® + SPAD meter- based N applicatione3
- Outcome
- N, P and K uptake in graine4
- Direction
- spikede4
- Value
- 42.1e4
- Comparator
- RRNe3
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e3“A significant improvement in grain yield (9.2%), grain protein (11.7%) content and protein yield (22.1%) was detected with NE® + SPAD meter- based N application over RRN”
e4“the N, P and K uptake in grain also spiked by 22.1, 42.1 and 31.7%, respectively”
Claim · model-written summary
SPAD meter-based N application increased grain K uptake by 31.7% over RRN.
- Taxon
- Oryza sativaOryza sativae0
- Material
- basmatie0
- Treatment
- NE® + SPAD meter- based N applicatione3
- Outcome
- N, P and K uptake in graine4
- Direction
- spikede4
- Value
- 31.7e4
- Comparator
- RRNe3
- Setting
- ICAR-Indian Agricultural Research Institute, New Delhie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at ICAR-Indian Agricultural Research Institute, New Delhi to monitor the effect of precision nitrogen (N) and water management options on yield and nutrient acquisition in grain and straw of direct-seeded rice (DSR, basmati) (Oryza sativa L.)”
e3“A significant improvement in grain yield (9.2%), grain protein (11.7%) content and protein yield (22.1%) was detected with NE® + SPAD meter- based N application over RRN”
e4“the N, P and K uptake in grain also spiked by 22.1, 42.1 and 31.7%, respectively”
Claim · model-written summary
NE + SPAD-based N application and adequate water regime could benefit yield and quality of both CA-based and conventionally cultivated direct-seeded rice.
Verbatim
e5“Hence, NE + SPAD-based N application and adequate water regime (irrigation at 72 h of drying of surface water) could be beneficial for improving yield and quality of both CA-based and conventionally cultivated DSR”
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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.