Nitrogen fertilizer effect on the agronomic aspects of Asparagus racemosus

ABSTRACT

This research paper attempts to investigate the performance of Asparagus racemosus grown by the application of different forms and doses of nitrogenous fertilizer at the Germplasm centre [CPC] of the Fruit Tree Improvement Program [FTIP]. Department of Horticulture, Bangladesh Agricultural University [BAU], Mymensingh during February to October, 2005. The treatments consisted of two different terms of nitrogen fertilizer such as prilled urea and urea super granule [USG] at 0, 100, 200 and 300 kg N ha [-1]. The experiment was aid out in randomized complete block design [RCBD] with three replications. The number, length, diameter, both fresh and dry weight of tuberous root was found higher with USG than that of prilled urea. Root protein content was found to be 25.20% higher in urea super granule treated plants compared to prilled urea. The rates of nitrogen also had a significant effect on plant height, number of leaves plant, number, length, diameter, fresh and dry weight of tuberous roots when compared to 0 kg N ha[-1] to the rest of the rates. Root protein content was 21.87. 12.5 and 14.06% higher than the control at the 00, 200 and 300 kg N ha[-1] concentrations, respectively. Therefore, the result suggested that application of 100 kg N ha[-1] urea super granule [USC] was found to be sufficient for the sustainable production of the tuberous root of Asparagus