RESPONSE OF TOMATO (Lycopersicum esculentum var. Mill) TO DIFFERENT LEVELS OF NITROGEN AND PHOSPHORUS FERTILIZER IN SOUTH WESTERN NIGERIA
Publication Date : 16/10/2015
A randomized complete block experiment was carried out at the teaching and research farm of Federal University of Technology, Akure (7°16¢N, 5°12¢E) located in the rain forest vegetation zone of Nigeria, to examine the response of tomato to Nitrogen and Phosphorus source. The treatments consist, of urea at two levels of application (50kg ha-1and 100kg ha -1) and single supper phosphate (SSP), also at two levels of application (60kg ha-1 and 180kg ha-1). The experiment design was Randomized Complete Block Design (RCBD) with 3 replicates. Soil samples were collected and analyzed before and after the experiment for soil pH, O: C, N, P, Ca, Mg, K, and Base Saturation. Plant and growth parameter (plant height, numbers of leaves, stem girth, and number of leaves) were collected at two weeks interval. The results were statically analyzed showed. The result of the study indicated that combined use of nitrogen and phosphorus inorganic fertilizer does not have significant positive (P>0.05) effect on tomato growth, yield and soil nutrient after harvesting. The best combination for the combined use of nitrogen and phosphorus inorganic fertilizer tomato growth is 50kg/ha urea + 60kg /ha SSP, while for yield is 10kg/ha urea + 180kg/ha SSP. While 0kg/ha urea + 60kg/ha SSP gave significant (P<0.05) effect in terms of number of leaves, plant height, number of branches, stem girth, number of fruits and weight of fruits.
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