Abstract:

In order to improve the industrialized breeding production efficiency, lower the production cost, and make the fertilizer been convenient for the manufacturer to obtain in brief and easily, research was conducted to study effects of low release nitrogen fertilizer of oxamide on vegetative growth of tomato seedling grown in the substrate of mushroom dregs. The results showed that, compared with the substrate with application with urea, EC value dynamic change of the substrate with application of oxamide was steady, increased slowly at first and then decreased slowly. Oxamide fertilizer could induce N, P and K nutrients balanced absorption by tomato seedling, and dry weight and fresh weight accumulation in seedlings. So tomato seedlings grew fast and healthy. Plant weight, stem diameter and chlorophyll content of tomato seedling grown on substrate were higher with application of oxamide fertilizer than with application of urea. In collusion, oxamide is the good N fertilizer in industrialized breeding due to promoting healthy seedling and operation was simple.