Determination the importance of nitrogen phosporous and potassium in sand culture technique

In this study, efect of nitrogen, phosphorus and potassium fertilizer on the growth of tomato plant and determinational symtoms by using sand culture in the pot condition.In the study tomato plant has been cultivated in 5 different nutrient solutions. Solutions has been prepeared upon on Hoagland and Arnon (1950), Luck (1956), Stainer (1958)?s researchs .In the experiment ;In the nitrogen defficiency, it observed that plant have thin, small, weak body and yellow colour turn from old leaves to young leaves and growth is stopped.In the phosphorus defficiency, it observed that plants have thin stalk, old leaves takes dull flightly color and root growth is limited.In the potassium deficiency, it obseved that thin stalk and long leaves formation are dominated althought young leaves saves normal colour, and leaves shows necros on the edge and in the progressive stage they take burn condition.