Abstract:
The importance of calcium in legume growth and soil fertility in temperate regions is well known, but there is evidence that in tropical regions adequate legume growth may be obtained under conditions of low calcium status. These differences require further elucidation for a subtropical environment, particularly as both temperate and tropical species occur and climatic conditions are transitional between temperate and tropical regions. Large areas of solodic soils of very low calcium status occur in southern Queensland. Volunteer plant growth is poor and sparse. In considering the use of legume species to increase the amount of nitrogen in the soil