Variation of Growth and Yield of Boro Rice Influenced by Transplanting Method and Gypsum Rate in the Salinity Affected Area of Noakhali in Bangladesh
S. M. A. Alim *
Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
M. A. Kader
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.
M. A. Islam
Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
S. Akram
Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
M. A. Rouf
Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
M. S. Rana
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Bangladesh.
*Author to whom correspondence should be addressed.
Abstract
Field experiment was carried out in Moddhochar Jabbar of Noakhali, Bangladesh during Boro season (December-April) 2018 to investigate the ameliorative effect of application of gypsum and transplanting method on the yield of BRRI dhan28 (V1) and BINAdhan-10 (V2)under salinity stress. The experiment comprised 3 factors; Transplanting method, Variety and Gypsum. This variety was evaluated under two transplanting methods i.e., Furrow transplanting (T1) and Conventional transplanting (T2) and four levels of gypsum with control G0: control, G1: 50 kg ha-1,G2: 100 kg ha-1 and G3: 150 kg ha-1 .The experiment was laid out in a Latin Square Design (LSD) with three replications. Salinity level had significant negative effect on plant characters and yield of rice. Gypsum (@ 150 kg/ha) exerted positive significant effect on most of the plant parameters except number of non-effective tillers. Furrow transplanting method (T1) had positive significant effect on most of the plant parameters except panicle length and harvest index. Binadhan-10 shows better performance than BRRI dhan28 in case of yield and all yield contributing characters in the prevailing condition. The highest grain yield (6.63 t ha-1) found from T1V2G3 (combination of furrow transplanting method, Binadhan-10 and gypsum @ 150 kg/ha) and lowest (4.26 t ha-1) inT2V1G0 (combination of conventional transplanting method, BRRI dhan28 and gypsum @ 0 kg ha-1). It was calculated that the straw yield highest (8.14 t ha-1) in T1V2G2 (combination of furrow transplanting method, Binadhan-10 and gypsum @ 100 kg/ha) and lowest (5.61 t ha-1) in T2V1G0 (combination of conventional transplanting method, BRRI dhan28 and gypsum @ 0 kg/ha).
Keywords: Gypsum rate, Binadhan-10, saline soil, furrow transplanting.