GROWTH AND YIELD OF RAPESEED (Brassica campestris) AS AFFECTED BY SULPHUR AND BORON FERTILIZER

Abstract

An experiment was done at the Agronomy field laboratory, Sher-e-Bangla Agricultural University, Dhaka during the period from Robi, 2013-14 to investigate the growth and yield performance of rapeseed as affected by sulphur (S) and boron (B). The experiment was laid out in two factors randomized complete block design (RCBD) with three replications. There were 16 treatment combinations (4 S doses x 4 B doses). The sulphur treatments were 0 kg ha-1 (S0), 18.6 kg ha-1 (S1), 27.9 kg ha-1 (S2) and 37.2 kg ha-1 (S3). Boron treatments were 0 kg ha-1 (B0), 0.875 kg ha-1 (B1), 1.75 kg ha-1 (B2) and 2.625 kg ha-1 (B3). Results showed that highest plant height (113.18 cm) was achieved at the combination of 37.2 kg ha-1 S dose and 1.75 kg ha-1 B dose. The highest dry matter (16. 8 g) was produced at the combination of 37.2 kg ha-1 S and 2.625 kg ha-1 B. The highest siliquae plant-1 (209.67), siliqua length (5.33) and seeds siliqua-1 (25.2) was achieved at the combination of 37.2 kg ha-1 S and 2.625 kg ha-1 B, 27.9 kg ha-1 S and 2.625 kg ha-1 B, 18.6 kg ha-1 S and 0 kg ha-1 B, 27.9 kg ha-1 S and 0 kg ha-1 B, 27.9 kg ha-1 S and 2.625 kg ha-1 B respectively. The lowest sterility percentage (3.03%) was observed at the combination of 37.2 kg ha-1 S and 1.75 kg ha-1 B. The highest grain yield (3.07 t ha-1) and harvest index (36.07%) was obtained at the combination of 27.9 kg ha-1 S dose and 1.75 kg ha-1 B dose and 0 kg ha-1 S dose and 0 kg ha-1 B dose. Highest weight of 1000-seed (3.83 g) was found at the combination of 27.9 kg ha-1 S and 0.875 kg ha-1 B. The highest oil percentage (41.32) was obtained at the combination of 37.2 kg ha-1 S and 1.75 kg ha-1 B.