1. In the southwest and southeast regions (including Murray-Darling Basin), wheat and sheep industry are the main industries, among which cash crops and dairy industry are the main industries in the southeast coastal areas.

2. There is little polyculture in the northern area, and beef cattle industry is the absolute main type of feeding.

Extension:

Mixed agriculture is mainly an agricultural regional type combining agriculture and animal husbandry. There are many modes of production of mixed agriculture. The most important mixed agriculture in the world is the mixed agriculture of grain and livestock, which organically combines raising livestock with grain production. This mixed agriculture is mainly distributed in Europe, North America, South Africa, Australia and New Zealand. The main crops are wheat, corn and so on. Livestock include pigs, cows and sheep. The most typical development of mixed agriculture in the world is the mixed agriculture of wheat and sheep in Murray-Darling Basin, Australia.