[Desorption characteristics of inorganic nitrogen in vegetable garden soil and their effects on soil NO3- -N loss potential].
Ying Yong Sheng Tai Xue Bao
; 18(1): 94-100, 2007 Jan.
Article
en Zh
| MEDLINE
| ID: mdl-17396506
ABSTRACT
With pot experiment and soil nitrogen desorption model, this paper studied the characteristics of nitrogen desorption in vegetable garden soil, and their effects on the NO3- -N concentration of soil leachate. The results showed that soil leachate NO3- -N concentration had a non-linear relationship with the parameters Q, Cli and C1/lamda of soil nitrogen, but the relationship became linear when these eigenvalues were relatively low. A conception of hi-curve cross point was put forward to assess the soil NO3- -N loss potential. When the eigenvalues were higher than the hi-curve cross point X0, the NO3- -N concentration in soil leachate would be increased rapidly in non-linear form, while on the contrary, the increase would be maintained at a lower level.
Search on Google
Banco de datos:
MEDLINE
Asunto principal:
Suelo
/
Verduras
/
Nitratos
/
Nitrógeno
Tipo de estudio:
Prognostic_studies
Idioma:
Zh
Año:
2007
Tipo del documento:
Article