Abstract
The application of nitrogenous fertilizer in reduced (“split”) doses of its total is suggested as a means to increase nitrogen use efficiency and rice productivity whilst reducing its environmental impact. Field trials conducted in 2022 and 2023 aimed to assess the impact of split nitrogen fertilizer applications on the productivity and nitrogen use efficiency of rice. This experiment included three nitrogen treatments (N1: control (no nitrogen); N2: 50% basal + 25% at tillering stage + 25% at panicle initiation stage (conventional method); N3: 33.33% basal + 33.33% at tillering stage + 33.33% at panicle initiation stage (equal split of nitrogen)) and four high-yielding rice varieties (V1: Super Gold 2019; V2: Super Basmati 2019; V3: Noor Basmati 2017; V4: Kissan Basmati 2016). The results indicated that the N3 treatment, with an equal split of nitrogen, combined with the V4 variety (Kissan Basmati 2016) produced the most favorable outcomes. The results indicated that the N3 treatment, particularly when applied to Kissan Basmati (V4), produced, statistically, the highest leaf area index (32.98%, 29.59%), 1000-grain weight (32.84%, 46.97%), grain yield (30.02%, 38.09%), agronomic nitrogen use efficiency (9.21%, 11.63%), and partial factor productivity (29.98%, 38.11%) compared to the control for the study periods of 2022 and 2023, respectively. Moreover, the grain yield demonstrated a strong positive correlation with growth traits and other yield components, except for plant height. The results showed that the application of three equal nitrogen doses significantly increases rice production, and therefore, in this yield context, improves nitrogen use efficiency.
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Claims 7
Claim · model-written summary
Equal split nitrogen on Kissan Basmati increased leaf area index by 32.98% in 2022 and 29.59% in 2023 versus control.
- Material
- Kissan Basmatie0
- Treatment
- N3 treatmente0
- Outcome
- leaf area indexe0
- Direction
- higheste0
- Value
- 32.98%, 29.59%e0
Not reportedTaxonComparator
Verbatim
e0“the N3 treatment, particularly when applied to Kissan Basmati (V4), produced, statistically, the highest leaf area index (32.98%, 29.59%)”
Claim · model-written summary
Equal split nitrogen on Kissan Basmati increased 1000-grain weight by 32.84% in 2022 and 46.97% in 2023 versus control.
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“1000-grain weight (32.84%, 46.97%)”
Claim · model-written summary
Equal split nitrogen on Kissan Basmati increased grain yield by 30.02% in 2022 and 38.09% in 2023 versus control.
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“grain yield (30.02%, 38.09%)”
Claim · model-written summary
Equal split nitrogen on Kissan Basmati increased agronomic nitrogen use efficiency by 9.21% in 2022 and 11.63% in 2023 versus control.
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“agronomic nitrogen use efficiency (9.21%, 11.63%)”
Claim · model-written summary
Equal split nitrogen on Kissan Basmati increased partial factor productivity by 29.98% in 2022 and 38.11% in 2023 versus control.
Not reportedTaxonTreatmentDirection
Verbatim
e0“partial factor productivity (29.98%, 38.11%) compared to the control for the study periods of 2022 and 2023, respectively.”
Claim · model-written summary
Rice grain yield was positively correlated with growth traits and yield components other than plant height.
Not reportedTaxonOrgan / stage
Verbatim
e0“the grain yield demonstrated a strong positive correlation with growth traits and other yield components, except for plant height.”
Claim · model-written summary
Three equal nitrogen doses significantly increased rice production.
- Taxon
- rice
Oryza sativae0 - Treatment
- three equal nitrogen dosese0
- Outcome
- rice productione0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of three equal nitrogen doses significantly increases rice production”
The same questions in other papers
nitrogen · yield · Oryza sativa (rice)Positive and negative results
1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative
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