Abstract
The experiments were carried out to establish an adequate method, which can be recommended to the farmer, for raising healthy seedlings of tomato plants by rockwool culture. The following factors, which will affect not only the seedling but the yields of the fruits, are examined: fertilization in the seed bed, the date of temporary planting, and the space in the bottom of the nursery pot. 1. The addition of nutrients to the seed bed promoted the growth of seedlings and shortened the duration of maturity. 2. Early temporary planting produced higher yield. Late temporary planting resulted in low yield, especially in the case of no fertilization to the seed bed. 3. Water requirement by seedlings greatly depended on the space in the bottom of the nursery pot. From these facts, the following are proposed for the raising of seedlings in rockwool culture of tomato plants. 1. Addition of nutrient solution (EC=1) to the seed bed. 2. Early temporary planting. 3. Small space in the bottom of he nursery pot.
