| 000 | 01571nam a22003857a 4500 | ||
|---|---|---|---|
| 001 | G56113 | ||
| 003 | MX-TxCIM | ||
| 005 | 20211006085026.0 | ||
| 008 | 121211s ||||f| 0 p|p||0|| | | ||
| 040 | _aMX-TxCIM | ||
| 041 | 0 | _aEs | |
| 043 | _aCR | ||
| 072 | 0 | _aF25 | |
| 072 | 0 | _aF27 | |
| 082 | 0 | 4 | _a85-066525 |
| 100 | 1 | _aMaldonado Andrade, M.A. | |
| 110 | 2 | _aCentro Agronomico Tropical de Investigacion y Ensenanza, Turrialba (Costa Rica) | |
| 245 | 0 | 0 | _aEvaluacion agro-economica y [evaluacion] energetica de la capacidad de sustitucion de diferentes metodos de laboreo a distintos niveles de fertilizacion nitrogenada en sistemas de maiz y frijol [Zea mays, Phaseolus vulgaris] |
| 246 | 0 | 0 | _aAgro-economical and energetical assessment of the substitution capacity of two different methods of tillage at different levels of nitrogen fertilizer in maize and bean systems [Phaseolus vulgaris; Zea mays] |
| 260 |
_aTurrialba (Costa Rica) :, _c1980 |
||
| 300 | _a112 p | ||
| 340 | _aPrinted | ||
| 500 | _aThesis (Mag Sc.). 91 ref. Summaries (En, Es). Also on microfiche | ||
| 546 | _aSpanish | ||
| 591 | _aCentro Agronomico Tropical de Investigacion y Ensenanza, Turrialba (Costa Rica) IICA, Turrialba (Costa Rica)|COMOD | ||
| 595 | _aAC | ||
| 650 | 1 | 0 | _aBeans phaseolus vulgaris |
| 650 | 1 | 7 |
_aCultivation _gAGROVOC _2 _91071 |
| 650 | 1 | 7 |
_aFertilizers _gAGROVOC _2 _91111 |
| 650 | 1 | 7 |
_aMaize _gAGROVOC _2 _91173 |
| 650 | 1 | 0 |
_91314 _aZea mays _gAGROVOC |
| 650 | 1 | 0 |
_91952 _aSoil fertility _gAGROVOC |
| 650 | 1 | 0 |
_91190 _aNitrogen fertilizers _gAGROVOC |
| 942 | _cBK | ||
| 999 |
_c39170 _d39170 |
||