journal of kerbala university

A green house experiment was conducted at the Technical institute of almusyabe to study the interaction effect between organic matter and different sources of phosphate fertilizer on the growth and uptake of nutrients by spinach plants. Results showed that dry weight of spinach plants at different stages of plant growth and improved the chemical properties of super phosphate and rock phosphate. The addition of organic matter to the soil increases the N – uptake by the spinach plant at the different stages of plant growth, and that due to the beneficial effect of organic matter in improving the nutritional status particularly nitrogen from the soil, and also observed that super phosphate application increased P, K and Fe amounts in the tissues of studied plants due to the fertilizer value of added super phosphate.