Principles of Soil Management - Principles of Sustainable Soil Management in Agroecosystems - page 3

TABLE 1.1
Temporal Changes in Cereal Grain Yield on Regional Basis

Cereal Grain Yields (kg ha -1 )

Continent Region 1961 1971 1981 1991 2001 2010

Africa Continent 810 986 1241 1236 1392 1501

Eastern 885 995 1252 1284 1363 1595

Middle 713 737 734 754 839 953

Northern 843 1277 1087 1672 1650 1852

Southern 1049 1415 2495 1860 2188 3600

Western 975 690 962 921 1009 1167

Asia Continent 1212 1673 2146 2823 3176 3634

East 1414 2308 3182 4285 4823 5497

South 1012 1166 1448 1930 2430 2667

Americas Continent 1912 2076 3209 3353 4218 5337

North 2203 3376 3840 4025 5054 6342

South 1347 1499 1941 2145 3146 4216

Caribbean 1176 1472 1886 1878 2185 2022

Oceania/Pacific 1115 1310 1434 1652 2255 1761

Europe 1379 2050 2046 2712 3418 3683

World 1353 1892 2247 2684 3136 3564

Source: FAO. FAOSTAT, 2012. Available at http://faostat.fao.org/Rome .

6000

Americas

5000

4000

Europe
Asia
World

3000

2000

Africa

1000

1961

2001 2010

1971 1981 1991

Ye ar

FIGURE 1.1 Temporal changes in cereal grain yields on regional basis between 1961 and
2010. (Redrawn from the data from FAO, FAOSTAT, 2012. Available at http://faostat.fao.org/
Rome . )