Abstract
A field experiment was conducted during kharif, 2022 at research farm of ICAR- Indian Institute of Rice Research, Rajendranagar, Hyderabad. The experiment was laid out in a randomized block design with ten treatments that consisted of nitrogen management practices allocated randomly and replicated thrice. Slow-release urea fertilizers such as silicon coated urea and cedar wood oil coated urea are developed at ICAR-IIRR laboratory were evaluated in wet direct seeded rice under field condition. Significantly highest plant height at panicle emergence and flowering stages (94.2 and 100.0 cm, respectively), higher number of tillers m -2 (395.3 and 384.0) and similar trend in dry matter production were registered in plots with application of 100 % RDN through silicon coated urea and cedar wood oil coated urea. Significantly, the highest and statistically comparable grain yield (6183 and 6025 kg ha -1 ) was recorded in plots applied with 100 % RDN @ 120 kg N ha -1 through silicon and cedar wood oil coated urea. The lowest grain yield (2320 kg ha -1 ) was observed with no application of nitrogen. Among the nitrogen management practices, Si-CU @ 120 kg N ha -1 recorded the highest head rice recovery, hulling percentage, milling percentage and amylose content however it was at par with CWOCU @ 120 kg N ha -1 and 100% RDN @120 kg N ha -1 neem coated urea. While, the lowest values were recorded in control plot with no application of nitrogen. It can be concluded that RDN applied through silicon coated urea and cedar wood oil coated urea @ 120 kg/ha found to be a suitable alternative source to neem coated urea in increasing the grain yield and profitability of wet direct seeded rice.
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Claims 8
Claim · model-written summary
Silicon coated urea gave significantly highest plant height at panicle emergence.
- Taxon
- rice
Oryza sativat0 - Treatment
- 100 % RDN through silicon coated ureae0
- Outcome
- plant height at panicle emergencee0
- Direction
- higheste0
- Value
- 94.2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly highest plant height at panicle emergence and flowering stages (94.2 and 100.0 cm, respectively), higher number of tillers m -2 (395.3 and 384.0) and similar trend in dry matter production were registered in plots with application of 100 % RDN through silicon coated urea and cedar wood oil coated urea.”
t0“Rice”
Claim · model-written summary
Cedar wood oil coated urea gave significantly highest plant height at flowering.
- Taxon
- riceOryza sativat0
- Organ / stage
- flowering stagese0
- Treatment
- cedar wood oil coated ureae0
- Outcome
- plant heighte0
- Direction
- higheste0
- Value
- 100.0 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly highest plant height at panicle emergence and flowering stages (94.2 and 100.0 cm, respectively), higher number of tillers m -2 (395.3 and 384.0) and similar trend in dry matter production were registered in plots with application of 100 % RDN through silicon coated urea and cedar wood oil coated urea.”
t0“Rice”
Claim · model-written summary
Coated urea treatments increased tiller number and dry matter production.
- Taxon
- riceOryza sativat0
- Treatment
- 100 % RDN through silicon coated urea and cedar wood oil coated ureae0
- Outcome
- number of tillers m -2e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher number of tillers m -2 (395.3 and 384.0) and similar trend in dry matter production were registered in plots with application of 100 % RDN through silicon coated urea and cedar wood oil coated urea.”
t0“Rice”
Claim · model-written summary
Silicon coated urea yielded 6183 kg ha -1 grain.
- Taxon
- riceOryza sativat0
- Treatment
- 100 % RDN @ 120 kg N ha -1 through silicone0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 6183e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest and statistically comparable grain yield (6183 and 6025 kg ha -1 ) was recorded in plots applied with 100 % RDN @ 120 kg N ha -1 through silicon and cedar wood oil coated urea.”
t0“Rice”
Claim · model-written summary
Cedar wood oil coated urea yielded 6025 kg ha -1 grain.
- Taxon
- riceOryza sativat0
- Treatment
- cedar wood oil coated ureae0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 6025 kg ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest and statistically comparable grain yield (6183 and 6025 kg ha -1 ) was recorded in plots applied with 100 % RDN @ 120 kg N ha -1 through silicon and cedar wood oil coated urea.”
t0“Rice”
Claim · model-written summary
No nitrogen application yielded the lowest grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- no application of nitrogene0
- Outcome
- grain yielde0
- Direction
- loweste0
- Value
- 2320 kg ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest grain yield (2320 kg ha -1 ) was observed with no application of nitrogen.”
t0“Rice”
Claim · model-written summary
Silicon coated urea gave highest grain processing and amylose outcomes.
- Taxon
- riceOryza sativat0
- Treatment
- Si-CU @ 120 kg N ha -1e0
- Outcome
- head rice recovery, hulling percentage, milling percentagee0
- Direction
- higheste0
- Comparator
- CWOCU @ 120 kg N ha -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si-CU @ 120 kg N ha -1 recorded the highest head rice recovery, hulling percentage, milling percentage and amylose content however it was at par with CWOCU @ 120 kg N ha -1 and 100% RDN @120 kg N ha -1 neem coated urea.”
t0“Rice”
Claim · model-written summary
The authors conclude coated urea sources are suitable alternatives for yield and profitability.
- Taxon
- riceOryza sativat0
- Outcome
- suitable alternative source to neem coated ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It can be concluded that RDN applied through silicon coated urea and cedar wood oil coated urea @ 120 kg/ha found to be a suitable alternative source to neem coated urea in increasing the grain yield and profitability of wet direct seeded rice.”
t0“Rice”
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