Enhance a Yield of Cabbage by Adding Organic Fertilizer in Low Field Areas

— Cabbage is a vegetable that contains lots of vitamins and minerals that the human body needs. One effort to increase the cultivation production of cabbage is to provide nutrients in the form of inorganic fertilizer, that is one of urea fertilizer that contains of 46% nitrogen. This paper aimed to investigate the response of growth and yield of cabbage in lowlands to the effeciency of nitrogen fertilizer with the addition of organic material. This research was conducted using randomized block design non-factorial with the treatment efficiency of urea fertilizer consists of 4 level that is efficiency of N 0% without granules fertilizer, efficiency of N 25% of the granules fertilizer, efficiency of N 50% with granules fertilizer, and efficiency of N 75% with granules fertilizer that is repeated 6 times. Results showed that the efficiency of nitrogen fertilization by 25% with the addition of organic fertilizers that is able to deliver growth and better results in all parameters of observation. Result of cabbage with nitrogen fertilization efficiency treatment of 25% with the addition of organic fertilizer gives higher yield in the amount of 42.46 tons.ha-1 , nitrogen fertilization efficiency treatment of 50% with the addition of organic fertilizers give a yield of 39.61 tons.ha-1 , nitrogen fertilization efficiency treatment of 75% with the addition of organic fertilizers give a yield of 3 tons.ha-1 , and nitrogen fertilization efficiency treatment of 100% without the addition of organic fertilizers give lower yield in the amount of 37.95 tons ha-