Journal of Food, Agriculture and Environment
Effect of rates and fertigation strategies of nitrogen on the yield and nutrient contents of cabbage
Author(s):
Mostafa Nabawy Feleafel 1, 2*,
Zohair Mahmoud Mirdad 1Recieved Date: 2013-05-08, Accepted Date: 2013-10-23
Abstract:This study was conducted at the Agricultural Experiment Station, Hada-Alsham, King Abdulaziz University, during the agriculture season of 2012/2013, to search for the impact of rates and fertigation strategies of nitrogen (N) fertilizer on the yield, quality and nutrient contents of cabbage crop. The experiment included nine treatments, which were the combinations of three N fertilizer rates; 150, 250 and 350 kg N, ha-1 and three fertigation strategies (FS); (FS1) 24 equal doses, (FS2) 24 gradually doses and (FS 3) 20 equal doses concentrated in the middle and heads formation stages. In general, the application of N fertilizer, in successive amounts up to 350 kg ha-1, to the growing cabbage plants, resulted in corresponding and significant decreases in T.S.S. (%) and number of the outer leaves, but achieved significant increases in fresh and dry masses of the outer leaves plant-1. Moreover, the results of the heads and head’s mineral contents, total and marketable heads yield ha-1 of cabbage clarified that increased significantly and successively as the N fertilizer level was increased. The application of 350 kg ha-1 of N fertilizer had recorded significantly higher total and marketable heads yield over 106.5 and 125 %, respectively, as compared with 150 kg ha-1 level. Also, obtained results illustrated that split application of N fertilizers up to 20 equal doses (FS3) through drip irrigation, significantly, increased all the outer leaves, heads and head’s mineral contents, total and marketable head yield ha-1 traits of cabbage plants. The increases of the total and marketable head yield ha-1 characters were 129.6% and 159.6%, orderly, as compared with 24 equal doses (FS1). Generally, the most efficient treatment combination, which gave the highest significant mean values for most traits of cabbage plants, was the dual treatment of application of N at 350 kg ha-1 at 20 equal doses (FS3).
Keywords:N fertilizer,
fertigation frequency, marketable heads yield, head quality, nitrate N concentrationJournal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Agriculture
Pages: 1069-1074
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