On the other hand, colonization has kept the land won in the district of the middle Salado, and it extends in a sporadic way toward the south-west and west. (Nueve de Julio, 252 square kilometres of wheat and 400 of maize: Veinte Cinco de Mayo, 84 square kilometres of wheat and 218 of maize: Junin, 197 square kilometres of wheat and 204 of maize in 1895). It has been maintained ever since, with slow progress, but without being ousted by breeding. This is one of the regions of the Pampa where the most different types of rural exploitation are mingled together. Agricultural colonization has been carried on both by small proprietors and farmers or tenants. Wheat and maize seem to be permanently associated, and the climate is equally good for both; the maize crop being the better if the summer is wet, and the wheat crop when the summer is dry. The two cereals follow each other on the same land, in rotation, the wheat being helped by the constant weeding and clearing which the maize requires. The colonists use oxen in the work, and fatten them afterwards.[100] [100] Draught animals in 1908: at Chivilcoy, 17,000 cattle and 10,000 horses; at Junin, 15,000 cattle and 6,000 horses; at Nueve de Julio, 15,000 cattle and 6,000 horses. In the region of the Santa Fe colonies: at Castellanos, 17,000 cattle and 54,000 horses; at Las Colonias, 6,000 cattle and 35,000 horses. In the wheat belt (South of Buenos Aires): at Puan, (no cattle) 29,000 horses. At the sierras (no cattle), 14,000 horses. Agricultural colonization in the lucerne region dates from 1895 to 1905: ------------------+----------------+---------------- | Wheat Area | Flax Area |(in kilometres).|(in kilometres). +-------+--------+-------+-------- | 1895 | 1908 | 1895 | 1908 ------------------+-------+--------+-------+-------- Buenos Aires: | | | | Lincoln | 152 | 819 | -- | 100 Pehuajo | 106 | 727 | -- | -- Guamini | 20 | 528 | -- | -- Trenque Lauquen | 100 | 1,439 | -- | 59 Villegas | 4 | 812 | 1 | 84 Pinto | -- | 469 | -- | 60 Cordoba: | | | | Gal. Roca | -- | 1,009 | -- | 89 Rio Quarto | 5 | 1,156 | -- | 172 Juarez Celman | 144 | 1,679 | -- | 183 Union | 373 | 2,548 | 12 | 316 ------------------+-------+--------+-------+--------