|
|
|
|
| LEADER |
00868nam a22002771a 4500 |
| 001 |
UNA01000095153 |
| 005 |
20120328193642.0 |
| 008 |
080728s1997 000 0 eng d |
| 040 |
|
|
|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
|
| 082 |
0 |
4 |
|a 633.2
|b R543h
|
| 100 |
1 |
|
|a Ridder, Nicholaas de,
|d 1950-
|
| 245 |
1 |
0 |
|a Hierarchical levels in agro-ecosystems :
|b selective case studies on water and nitrogen /
|c Nico de Ridder
|
| 260 |
|
|
|a [Netherlands] :
|b s.n. ,
|c 1997
|
| 300 |
|
|
|a 193 p. :
|b il. ;
|c 24 cm.
|
| 502 |
|
|
|a Tesis (Doctorado) --
|b Wageningen Agricultural University
|
| 650 |
0 |
4 |
|a ECOLOGIA
|
| 650 |
0 |
4 |
|a AGRICULTURA
|
| 650 |
0 |
4 |
|a AGRICULTURA ORGANICA
|
| 650 |
0 |
4 |
|a ECOSISTEMAS
|
| 650 |
0 |
4 |
|a AGUA
|
| 650 |
0 |
4 |
|a NITRÓGENO
|
| 650 |
0 |
4 |
|a SOSTENIBILIDAD
|
| 650 |
0 |
4 |
|a PASTIZALES
|
| 650 |
0 |
4 |
|a ZOOTECNIA
|
| 650 |
0 |
4 |
|a BIOMASA
|
| 650 |
0 |
4 |
|a ECOLOGIA
|