| Knowledge in a thing is considered an essential condition for its proper application , so the knowledge and awareness of farmers in dealing safely with fertilizers leads to a safe and secure application of them and achiere their objectives in improving the properties of soil and supplying plant with feeding elements , so this research aimed at knowing the level of knowledge of the horticultural growers in the area of Tarmiya – Baghdad in the side damages of excess use of fertilizers, in addition of determining the level of growers knowledge in each of the areas ( soil , plant , environment , and farms ) , as well as discovering the relationships between the level of knowledge and each of the following independent variables ( tenure, funding , and educational level ) Research population included all orchard farmers in Tarmiya area numbered (1200) , a random sample of a size (10%) (120 farmers ) was taken from it . The research found the following results : with regard to the level of knowledge of horticultural growers in the side damages in the use of fertilizers, it was medium tends to a relative decline , the results also showed a significant relationships between the level of knowledge of farmers , and each of the following variables ; funding and educational level . Therefore the researchers recommended to find an extension team which take care of field environmental extension , and activate this subject in the curriculum of the agrienltural colleges. |