Estadisticas : How long does it take to establish a field boundary with a small proportion of weeds? An example in semi-arid conditions Cirujeda, A. Visitas:351 230 ( Estados Unidos de América ) 48 ( Singapur ) 37 ( Reino Unido ) 15 ( Hong kong ) 8 ( Alemania ) 7 ( Letonia ) 3 ( Finlandia ) 1 ( Bélgica ) 1 ( España ) 1 ( Austria ) Descargas: 121
230 ( Estados Unidos de América ) 
48 ( Singapur ) 
37 ( Reino Unido ) 
15 ( Hong kong ) 
8 ( Alemania ) 
7 ( Letonia ) 
3 ( Finlandia ) 
1 ( Bélgica ) 
1 ( España ) 
1 ( Austria )