Under same growth conditions, there would be relative higher volume and productivity in coppice forest than in seedling crop of Robinia pseudoacacia.

This paper reports the amelioration of soils polluted by Cd and Zinc by organic matter and water leaching in a pot experiment using corn seedling as an index crop.

There was significant effects on growth and devplopment of after crop such as soy-bean, maize, and little effects on transplanted seedling of rice.