Abstract
This study aimed to evaluate the effect of row spacing and nitrogen topdressing fertilization of two materials (genotype 07SEQCL441 CL and cultivar BRS Esmeralda) on the plant height, yield components, grain yield, and quality of an upland rice crop grown in a no-tillage system. Trials were conducted for two growing seasons under field conditions in a 3 x 4 factorial, randomized, complete block design, with four replications. For each material, treatments consisted of the combination of row spacing (0.225, 0.35, and 0.45 m) with nitrogen (N) applied as topdressing (0, 50, 100, and 150 kg ha-1). The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2, and grain yield of rice. Increasing rates of N in the topdressing improved the rice grain yield for both cultivars, but for 07SEQCL441 CL, the grain yield was positively affected only to applications up to 50 kg N ha-1. Row spacing and N rates did not affect the rice grain quality. Therefore, these results indicate that the narrowest row spacing used (0.225 m) with N fertilization as topdressing increased the rice grain yield most in the no-tillage system.
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Claims 8
Claim · model-written summary
The narrowest row spacing increased tiller number in 07SEQCL441 CL.
- Taxon
- rice
Oryza sativae0 - Material
- 07SEQCL441 CLe0
- Treatment
- 0.225 me0
- Outcome
- number of tillerse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2, and grain yield of rice”
Claim · model-written summary
The narrowest row spacing increased panicle density and grain yield in 07SEQCL441 CL.
- Taxon
- riceOryza sativae0
- Material
- 07SEQCL441 CLe0
- Treatment
- 0.225 me0
- Outcome
- number of panicles m-2, and grain yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2, and grain yield of rice”
Claim · model-written summary
The narrowest row spacing increased tillers, panicles, and yield in BRS Esmeralda.
- Taxon
- riceOryza sativae0
- Material
- BRS Esmeraldae0
- Treatment
- 0.225 me0
- Outcome
- number of tillers, number of panicles m-2, and grain yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2, and grain yield of rice”
Claim · model-written summary
Increasing nitrogen topdressing improved grain yield in BRS Esmeralda.
- Taxon
- riceOryza sativae0
- Material
- both cultivarse0
- Treatment
- Increasing rates of N in the topdressinge0
- Outcome
- rice grain yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing rates of N in the topdressing improved the rice grain yield for both cultivars”
Claim · model-written summary
Nitrogen topdressing improved 07SEQCL441 CL yield only up to 50 kg N ha-1.
- Taxon
- upland riceOryza sativat0
- Material
- 07SEQCL441 CLe0
- Treatment
- applications up to 50 kg N ha-1e0
- Outcome
- grain yielde0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for 07SEQCL441 CL, the grain yield was positively affected only to applications up to 50 kg N ha-1”
t0“upland rice”
Claim · model-written summary
Row spacing did not affect rice grain quality.
- Taxon
- riceOryza sativae0
- Treatment
- Row spacinge0
- Outcome
- rice grain qualitye0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Row spacing and N rates did not affect the rice grain quality”
Claim · model-written summary
Nitrogen rates did not affect rice grain quality.
- Taxon
- riceOryza sativae0
- Treatment
- N ratese0
- Outcome
- rice grain qualitye0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Row spacing and N rates did not affect the rice grain quality”
Claim · model-written summary
The authors recommend narrowest row spacing with nitrogen topdressing for maximum yield.
- Taxon
- riceOryza sativae0
- Outcome
- the narrowest row spacing used (0.225 m) with N fertilization as topdressinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the narrowest row spacing used (0.225 m) with N fertilization as topdressing increased the rice grain yield most in the no-tillage system”
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