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01796nam a22002894c 4500 |
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AR-BlMDP |
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20230322094151.0 |
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220825s2001 ag a f 000 0 spa d |
| 040 |
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|a AR-BlMDP
|b spa
|c AR-BlMDP
|e rda
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| 041 |
0 |
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|a spa
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| 044 |
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|a ag
|c AR
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| 100 |
1 |
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|a Vazquez, P.M.
|9 14177
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| 245 |
1 |
0 |
|a Predicción de la productividad primaria de pastizales naturales de la pampa deprimida utilizando propiedades del horizonte A
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| 264 |
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1 |
|a Balcarce, Buenos Aires :
|b Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias,
|c 2001
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| 300 |
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|a 60 páginasdat.num, ilustraciones
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| 336 |
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|a texto
|b txt
|2 rdacontent
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| 337 |
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|a sin mediación
|b n
|2 rdamedia
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| 338 |
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|a volumen
|b nc
|2 rdacarrier
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| 500 |
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|a 1 ej. IPUIB
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| 520 |
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|a Predictive models of native grasslands dry matter productivity (DM) with N and P fertilisation in sodic soils of the Flooding Pampas using the properties of A horizon over two growing seasons with contrasting water stress levels (612 mm vs 1046 mm) were developed. When P was added (40 kg P ha-1), pH and sand% were the variables most associated with DM. The R2 for the dry and the humid period were 0.88 and 0.91, respectively. When P and N were applied (40 kg P ha-1 and 200 kg N ha-1), gravimetric water content at 33 kPa and sand% were selected in the dry period (R2=0.91) and SAR and clay% were selected in the humid period (R2=0.90). N use efficiency was better predicted by the gravimetric water content at 1500 kPa and sand% in the dry period (R2=0.97) an by sand% in the humid period (R2=0.57).
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| 541 |
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|c Donación
|f FCAB
|3 TESIS POSTGRADO
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| 650 |
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7 |
|a PASTIZAL NATURAL
|2 LEMB
|9 1799
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| 650 |
|
7 |
|a PRODUCTIVIDAD
|2 LEMB
|9 1590
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| 942 |
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|2 udc
|c TP
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| 945 |
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|a IPUIB; REPOSITORIO: FCA
|d 2004-11-01
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| 999 |
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|c 9642
|d 9642
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