Prótidos y nitratos en A. Tricolor L. fertilizado con NPK
It was evaluated the incidence of fertilization of nitrogen (N), phosphorus (P) and potassium (K) on the crude protide content (% C.Pr.) and NO3 - accumulation in Amaranth tricolor L. leaves. The assay was carried out in the green house of the Facultad de Agronomía (UNLPam, Santa Rosa, Argent...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
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| Autores principales: | , |
| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=1878 |
| Sumario: | It was evaluated the incidence of
fertilization of nitrogen (N), phosphorus (P) and
potassium (K) on the crude protide content
(% C.Pr.) and NO3
- accumulation in Amaranth
tricolor L. leaves. The assay was carried out
in the green house of the Facultad de Agronomía
(UNLPam, Santa Rosa, Argentina) in
pots using a soil with low fertility. The doses
of fertilizers added -in kg/ha- were N: 50 y 100;
P: 60 y 90 and K: 120.
All possible combinations were tested,
giving 18 treatments including the control.
Triple ANOVA and Tukey and Tukey-Kramer
tests were used. The analyzed variables
were % C.Pr., dry basis (d.b.), NO3
- content
expressed as % NO3
- (d.b.) and NO3
- mg/kg
fresh weight.
¬ Highly significant differences (p < 0.01)
for different doses of N and significant
differences (p < 0.05 ) for N x P interaction
were found.
¬ When NO3
- is expressed as % (d.b.) and
mg/kg fresh weight, highly significant
differences for N factor and significant
differences for P and no difference for K
were found.
¬ Highly significant differences for % (d.b.)
in the double interactions NxP and PxK.
¬ Significant differences for NxK and for all
double interactions for data expressed as
mg/kg fresh were found.
¬ No significance for triple interaction was
found.
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