Effect of Row Arrangement and Integrated Nutrient Management on the Growth of Aromatic Fine Rice cv. BRRI dhan 34

A field experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from June to December 2014 to study the growth of aromatic fine rice (cv. BRRI dhan34) as affected by row arrangement and integrated nutrient management. The experiment was laid out in a randomized complete block design with three replications consisting of the following treatments- a) three row arrangement namely, (i) single row, (ii) double row, (iii) triple row; and b) six nutrient managements viz. (i) control (no manures and fertilizers), (ii) recommended dose of inorganic fertilizers (i.e 150, 100, 70, 60 and 10 kg Urea, TSP, MoP, Gypsum and ZnSO4 respectively ha-1), (iii) 50% of recommended dose of inorganic fertilizers + cow dung at 5 t ha-1, (iv) 75% of recommended dose of inorganic fertilizers + cow dung at 5 t ha-1, (v) 50% of recommended dose of inorganic fertilizers + poultry manure at 2.5 t ha-1 and (vi) 75% of recommended dose of inorganic fertilizers + poultry manure at 2.5 t ha-1. The data analysis results showed that double row arrangement produced the tallest plant (117.8 cm) at 85 DAT, the highest number of total tillers hill-1 (15.56) and the highest leaf area index (5.75) at 65 DAT, the highest total dry matter hill-1 (35.88g) at 85 DAT and the highest crop growth rate (41.65 g m-2 day-1 ) at 65-85 DAT. The application of 75% of recommended dose of inorganic fertilizers + cow dung at 5 t ha-1 showed superiority in terms of having highest plant height (119.67 cm), highest number of total tillers hill-1 (14.89), highest leaf area index (6.05), highest total dry matter (39.94 g) and highest crop growth rate (41.85 g m-2 day-1). The treatment control gave the lowest values for the same parameters. Therefore, double row arrangement combined with 75% recommended dose of inorganic fertilizers + cow dung at 5 t ha-1 and 75% of recommended dose of inorganic fertilizers + poultry manure at 2.5 t ha-1 appeared as the promising practice in aromatic fine rice cv. BRRI dhan34 cultivation in terms of growth and yield