2012
DOI: 10.1590/s0100-06832012000300022
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: soares (6) , Carlos ribeiro rodrigues (7) & Alessandro Carlos mesquita (8) resumoAs plantas diferem quanto à preferência pela forma de n mineral a ser absorvida e metabolizada. no arroz, essa preferência parece variar com o estádio de crescimento da cultura. o presente trabalho objetivou avaliar o efeito de proporções de n-nitrato e de n-amônio sobre o crescimento e a produção de grãos das cultivares de arroz de terras altas brs Colosso e brsmG Conai em solução nutritiva, em dois experimentos, um com cada cult… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
13
0
9

Year Published

2012
2012
2020
2020

Publication Types

Select...
5

Relationship

1
4

Authors

Journals

citations
Cited by 15 publications
(22 citation statements)
references
References 15 publications
0
13
0
9
Order By: Relevance
“…Arf et al (2001), Bordin et al (2003), Cazetta et al (2008) and Pacheco (2009) also obtained higher upland rice yield using millet as cover crop. This can be attributed to a better development of upland rice with low nitrate/ammonium ratio, in the first weeks of crop development (Lin et al, 2005;Li et al, 2007;Holzschuh et al, 2009;Poletto et al, 2011;Araújo et al, 2012). Millet provided the lowest amount of nitrate and the highest level of ammonium to the soil in almost all evaluations.…”
Section: Resultsmentioning
confidence: 91%
See 3 more Smart Citations
“…Arf et al (2001), Bordin et al (2003), Cazetta et al (2008) and Pacheco (2009) also obtained higher upland rice yield using millet as cover crop. This can be attributed to a better development of upland rice with low nitrate/ammonium ratio, in the first weeks of crop development (Lin et al, 2005;Li et al, 2007;Holzschuh et al, 2009;Poletto et al, 2011;Araújo et al, 2012). Millet provided the lowest amount of nitrate and the highest level of ammonium to the soil in almost all evaluations.…”
Section: Resultsmentioning
confidence: 91%
“…The fact that rice plants came from a hydrophilic environment (Lin et al, 2005), where N-NH 4 + prevails (Schjoerring et al, 2002;Li et al, 2007), can explain this preference for low nitrate/ammonium ratio. Araújo et al (2012) reported that upland rice plants have difficulty in metabolizing nitrate in the early development, since the production of nitrate reductase enzyme by this crop takes time to begin. This fact could explain the low initial rice development, when N-NO 3 -prevails in the environment, with negative effects on rice grain yield (Holzschuh et al, 2009), as observed in treatments with U. brizantha, U. ruziziensis and P. maximum.…”
Section: Resultsmentioning
confidence: 99%
See 2 more Smart Citations
“…Moreover, it was observed an increase in the nitrate reductase activity level with the upland rice growth (Figure 3d). Likewise, Araújo et al (2012), working with the upland rice BRS Colosso and BRSMG Conai cultivars, observed a lower enzyme activity at the beginning of their development (26 days after transplanting -DAT), with increasing values up to 41 DAT.…”
Section: Resultsmentioning
confidence: 96%