Abstract
Rice is the most important crop at the global level, as it used as a staple food in most of the countries of the world. Transplanting aged seedlings of paddy has a detrimental effect on the crop performance, which needs to be overcome for sustaining the productivity. Leaf colour chart based nitrogen application is an efficient and economical tool for enhancing the rice productivity and nitrogen use efficiency. With this in mind, a field experiment was conducted during kharif 2011, at the Research Farm of SKUAST-K, Shalimar, Srinagar (Kashmir) to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions and to assess the suitability of using leaf colour chart as a nitrogen management tool to improve the performance of rice. The experiment was established in Randomized Block Design, with three replicates, 3 seedling ages and 6 nitrogen application treatments. The analyses of data revealed that 35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05). Among nitrogen application treatments significantly higher dry matter accumulation; yield (8.6 t ha-1) and N, P and K uptake (14.1, 3.6 and 12.7 kgha-1, respectively) was found in ½ N as basal and remaining at LCC <4 @20 kg ha-1 (p<0.05). Age of seedling and time of nitrogen application did not affect N, P, K and protein content of grain and straw significantly (p>0.05). It is concluded that the yield of rice can be improved by transplanting 35-days old seedling under late transplanted conditions in temperate regions and by following LCC guided nitrogen management.
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Claims 14
Claim · model-written summary
Transplanting 35-day-old seedlings increased total dry matter accumulation of rice.
- Taxon
- rice
Oryza sativae2 - Treatment
- 35 days old seedlinge1
- Outcome
- total dry matter accumulatione1
- Direction
- highere1
- Setting
- field experimente3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
e3“a field experiment was conducted during kharif 2011, at the Research Farm of SKUAST-K, Shalimar, Srinagar (Kashmir)”
Claim · model-written summary
The 35-day-old seedlings increased dry matter partitioning to panicle to 8.2 t/ha in rice.
- Taxon
- riceOryza sativae2
- Organ / stage
- paniclee1
- Treatment
- 35 days old seedlinge1
- Outcome
- dry matter partitioninge1
- Direction
- highere1
- Value
- 8.2 t ha-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
The 35-day-old seedlings increased dry matter partitioning to leaf to 2.4 t/ha in rice.
- Taxon
- riceOryza sativae2
- Organ / stage
- leafe1
- Treatment
- 35 days old seedlinge1
- Outcome
- dry matter partitioninge1
- Direction
- highere1
- Value
- 2.4 t ha-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
The 35-day-old seedlings increased rice grain yield to 7.4 t/ha.
- Taxon
- riceOryza sativae2
- Treatment
- 35 days old seedlinge1
- Outcome
- grain yielde1
- Direction
- highere1
- Value
- 7.4 t ha-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
The 35-day-old seedlings increased N uptake of rice to 11.6 kg/ha.
- Taxon
- riceOryza sativae2
- Treatment
- 35 days old seedlinge1
- Outcome
- N, P and K uptakee1
- Direction
- highere1
- Value
- 11.6e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
The 35-day-old seedlings increased P uptake of rice to 3.1 kg/ha.
- Taxon
- riceOryza sativae2
- Treatment
- 35 days old seedlinge1
- Outcome
- N, P and K uptakee1
- Direction
- highere1
- Value
- 3.1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
The 35-day-old seedlings increased K uptake of rice to 11.3 kg/ha.
- Taxon
- riceOryza sativae2
- Treatment
- 35 days old seedlinge1
- Outcome
- N, P and K uptakee1
- Direction
- highere1
- Value
- 11.3e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“35 days old seedling recorded significantly higher total dry matter accumulation and dry matter partitioning to panicle (8.2 t ha-1) and leaf (2.4 t ha-1); grain yield (7.4 t ha-1); N, P and K uptake (11.6, 3.1 and 11.3 kg ha-1, respectively) (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
Half basal N with the rest at LCC <4 @20 kg/ha increased dry matter accumulation of rice.
- Taxon
- riceOryza sativae2
- Treatment
- ½ N as basal and remaining at LCC <4 @20 kg ha-1e1
- Outcome
- dry matter accumulatione1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Among nitrogen application treatments significantly higher dry matter accumulation; yield (8.6 t ha-1) and N, P and K uptake (14.1, 3.6 and 12.7 kgha-1, respectively) was found in ½ N as basal and remaining at LCC <4 @20 kg ha-1 (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
Half basal N with the rest at LCC <4 @20 kg/ha gave rice yield of 8.6 t/ha.
- Taxon
- riceOryza sativae2
- Treatment
- ½ N as basal and remaining at LCC <4 @20 kg ha-1e1
- Outcome
- yielde1
- Direction
- highere1
- Value
- 8.6 t ha-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Among nitrogen application treatments significantly higher dry matter accumulation; yield (8.6 t ha-1) and N, P and K uptake (14.1, 3.6 and 12.7 kgha-1, respectively) was found in ½ N as basal and remaining at LCC <4 @20 kg ha-1 (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
Half basal N with the rest at LCC <4 @20 kg/ha increased N uptake of rice to 14.1 kg/ha.
- Taxon
- riceOryza sativae2
- Treatment
- ½ N as basal and remaining at LCC <4 @20 kg ha-1e1
- Outcome
- N, P and K uptakee1
- Direction
- highere1
- Value
- 14.1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Among nitrogen application treatments significantly higher dry matter accumulation; yield (8.6 t ha-1) and N, P and K uptake (14.1, 3.6 and 12.7 kgha-1, respectively) was found in ½ N as basal and remaining at LCC <4 @20 kg ha-1 (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
Half basal N with the rest at LCC <4 @20 kg/ha increased P uptake of rice to 3.6 kg/ha.
- Taxon
- riceOryza sativae2
- Treatment
- ½ N as basal and remaining at LCC <4 @20 kg ha-1e1
- Outcome
- N, P and K uptakee1
- Direction
- highere1
- Value
- 3.6e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Among nitrogen application treatments significantly higher dry matter accumulation; yield (8.6 t ha-1) and N, P and K uptake (14.1, 3.6 and 12.7 kgha-1, respectively) was found in ½ N as basal and remaining at LCC <4 @20 kg ha-1 (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
Half basal N with the rest at LCC <4 @20 kg/ha increased K uptake of rice to 12.7 kg/ha.
- Taxon
- riceOryza sativae2
- Treatment
- ½ N as basal and remaining at LCC <4 @20 kg ha-1e1
- Outcome
- N, P and K uptakee1
- Direction
- highere1
- Value
- 12.7e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Among nitrogen application treatments significantly higher dry matter accumulation; yield (8.6 t ha-1) and N, P and K uptake (14.1, 3.6 and 12.7 kgha-1, respectively) was found in ½ N as basal and remaining at LCC <4 @20 kg ha-1 (p<0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
Seedling age and nitrogen timing did not significantly affect N, P, K or protein content of rice grain and straw.
- Taxon
- riceOryza sativae2
- Treatment
- Age of seedling and time of nitrogen applicatione1
- Outcome
- N, P, K and protein content of grain and strawe1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Age of seedling and time of nitrogen application did not affect N, P, K and protein content of grain and straw significantly (p>0.05)”
e2“to optimize the seedling age of rice (Oryza sativa L.) under late transplanting conditions”
Claim · model-written summary
Transplanting 35-day-old seedlings with LCC-guided nitrogen management can improve rice yield in temperate regions.
- Taxon
- riceOryza sativae1
- Treatment
- transplanting 35-days old seedlinge1
- Outcome
- yielde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It is concluded that the yield of rice can be improved by transplanting 35-days old seedling under late transplanted conditions in temperate regions and by following LCC guided nitrogen management”
The same questions in other papers
nitrogen · quality: protein · Oryza sativa (rice)Results differ
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