| Abstract: In order to study the effect of different concentrations of nutrient solution on the tomato seedlings growth, 'ND1558' tomato was used as the test material, the working liquid of Hoagland-Arnon was used as the standard concentration (1.0C) and 6 nutrient solution concentrations (0.5C, 2.5C, 5.0C, 7.5C, 10.0C, 12.5C) were set to treat tomato seedlings. The results showed that below the 5.0C concentration of tomato seedling, inhibitory effect was not obvious. The inhibitory effect was remarkable that above the 10.0C concentration processing tomato seedlings, but it was difficult to restore growth after engraftment. The better combination of plant type control was treated with 7.5C nutrient solution, f irstly and then with normal concentration, which had a definite effect on the growth and yield in the later period. |