Abstract: This paper studied effects under normal and low temperature of different phosphate fertilizer on tomato seedlings growth and physiology activity. The results showed that the phosphorus application (P₂O₅), ranging from 0.20 to 0.85 g/kg soil under ambient temperature could benefit to stronger tomato seedlings, when the phosphorus application exceed 0.85 g/kg soil the gowth of tomato seedlings begin to come down; under low temperature condition phosphorus application (P₂O₅) 3.14 g/kg, the growth of tomato seedlings reach the maximal value. Proper phosphorus application may improve tomato seedlings growth, the contents of chlorophyll and soluble sugar, but the contents of MDA were declined, that means the resistance ability improves; By the excess phosphorus application, tomato seedlings physiology activity reduces, the stress resistance was declined.

Key words: Tomato, Phosphate fertilizer, Low temperature stress, Physiological activity

CLC Number: 

• S143.2