Abstract:

Tomato was used to study the effects of adding the manganese sulfate (MnSO4), amino-acid chelated manganese (Mn-AA) or Ethylenediamine tetra acetic acid disodium manganese (Mn-EDTA) into compound fertilizer on yield and quality. The results showed that adding the three kinds morphology manganese to fertilizer all could increase the yield and quality of tomato and the addition of Mn-AA was the best to improve tomato quality, with increasing Vitamin C, soluble solids, soluble protein, and free amino acids, decreasing the contents of titratable acid and increasing the sugar acid ratio.