Effect of Spacing and Plant Nutrient Management in SRI Method on the Growth and Yield of Transplant Aman Rice (original) (raw)
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Effect of plant spacing and nitrogen on yield of transplant aman rice var. BRRI dhan52
An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the period from 10 July 2012 to 15 December 2012 to investigate the effect of plant spacing and nitrogen levels on yield and attributes yield of transplant aman rice cv. BRRI dhan52. The experiment comprised of four plant spacing viz. 25 cm × 20 cm, 25 cm × 15 cm, 20 cm × 20 cm and 20 cm × 15 cm, and five nitrogen levels viz. 0, 40, 80, 100 and 140 kg N ha-1. BRRI dhan52 was used as planting material. Results revealed that plant spacing and N levels had significant effect on the studied crop characters and yield. The plant height, number of total tillers and effective tillers hill-1, grains panicle-1, grain and straw yields increased with increasing plant spacing and N levels. The highest plant height, number of total tillers and effective tillers hill-1 and grains panicle-1 was observed in the widest spacing of 25 cm × 20 cm resulting, the highest grain yield followed by 20 cm × 20 cm. In contrast, the closest spacing of 20 cm × 15 cm, produced the lowest values of the above mentioned plant parameters and also showed the lowest grain yield. The longest plant, highest number of total, effective tillers hill-1, grains panicle-1, grain and straw yields were observed with 100 kg N ha-1 followed by 140 kg N ha-1. On the other hand, the shortest plant, lowest number of total tillers and effective tillers hill-1, grains panicle-1, grain and straw yields were observed with no nitrogen and the non-effective tillers hill-1 and sterile spikelet’s panicle-1 were recorded the highest. In regard to interaction effect of spacing and N levels, the highest plant height, number of total and effective tillers hill-1 were observed in the widest spacing of 25 cm × 20 cm with 100 kg N ha-1 and resulting the highest grain yield. The lowest values of the above parameters were recorded in the narrowest plant spacing, 20 cm × 15 cm with no nitrogen application. Based on the experimental results, it may be concluded that 25 cm 20 cm spacing with 100 kg N ha-1 would be the best treatments combinations regarding yield and yield attributes of BRRI dhan52.
Journal of Agriculture & Rural Development, 2008
The experiment was conducted at the Bangladesh Rice Research Institute farm to study the tillering dynamics and the productivity of the variety, BRRI dhan44 under four spacing (20 cm× 15 cm, 25 cm× 15 cm, 20 cm× 20 cm and 25 cm× 25 cm) and varying levels (0, 60, 80, 100 kg N ha-1) and technique (Leaf Color Chart based N) of N. The wider spacing produced higher number of tillers at maximum tillering stage which was not realized in to number of on ear bearing tiller m-2. Grain yield was not influenced by spacing. A similar grain yield of BRRI dhan44 at a wider spacing of 25 cm× 25 cm indicated its suitability where wider spacing is practiced. The higher amount of added N produced higher non bearing tillers hill-1. Grain yield obtained from 80, 100 kg N ha-1 and leaf color chart (LCCN) was comparable. Key words: Spacing, nitrogen management, tillering dynamics, productivity, rice.
The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from July to December 2006 in order to study the effect of spacing and poultry manure based integrated plant nutrient management in SRI method on the yield and yield components of transplant aman rice cv. BRRI dhan41. The experiment included three spacings viz. 25 cm × 15cm (conventional spacing), 30 cm × 30cm (SRI close spacing) and 40 cm × 40 cm (SRI wide spacing), and seven poultry manure based integrated fertilizer (NPKSZn) management viz. control i.e. without fertilizer (F1), 100% NPKSZn i.e. recommended dose of fertilizer (80, 26, 33, 11 and 2 kg ha-l of N, P, K, S and Zn, respectively) (F2), 5 t ha-1 of poultry manure (F3), 50% NPKSZn +5 t ha-1 of poultry manure (F4), 50% NPKSZn + 2.5 t ha-1 of poultry manure (F5),75% NPKSZn + 5 t ha-1 of poultry manure (F6) and75% NPKSZn + 2.5 t ha-1of poultry manure (F7). The experiment was conducted in a randomized complete block design with three replications. Conventional spacing (25 cm × 15 cm) was found to be the best in terms of grain and-straw yields. Regarding nutrient management, 75% NPKSZn + 5 t ha-1 of poultry manure was found to be the highest grain yielder due to more number of tillers unit-1 area. In case of interaction, yield and yield components of the crop such as total tillers m-2, effective tillers m-2, grain yield and straw yield were highest in conventional spacing × 100% NPKSZn among which total tillers m-2, effective tillers m-2, and grain yield were similar to conventional spacing × 50% NPKSZn with 5 t ha-1 of poultry manure and effective tillers m-2 and grain yield were at par with conventional spacing × 75% NPKSZn with 5 t ha-1 of poultry manure. Therefore, conventional spacing of 25 cm × 15 cm in combination with 50% NPKSZn and 5 t ha-1 of poultry manure appeared as the best practice for transplant Aman rice cultivation in SRI method because it not only reduced the production cost but also had a long term impact on the improvement of soil properties.
Acta Scientiarum. Agronomy, 2016
This study aimed to evaluate the effect of row spacing and nitrogen topdressing fertilization of two materials (genotype 07SEQCL441 CL and cultivar BRS Esmeralda) on the plant height, yield components, grain yield, and quality of an upland rice crop grown in a no-tillage system. Trials were conducted for two growing seasons under field conditions in a 3 x 4 factorial, randomized, complete block design, with four replications. For each material, treatments consisted of the combination of row spacing (0.225, 0.35, and 0.45 m) with nitrogen (N) applied as topdressing (0, 50, 100, and 150 kg ha-1). The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2 , and grain yield of rice. Increasing rates of N in the topdressing improved the rice grain yield for both cultivars, but for 07SEQCL441 CL, the grain yield was positively affected only to applications up to 50 kg N ha-1. Row spacing and N rates did not affect the rice grain quality. Therefore, these results indicate that the narrowest row spacing used (0.225 m) with N fertilization as topdressing increased the rice grain yield most in the no-tillage system.
EFFECT OF VARIETIES AND ROW SPACING ON THE GROWTH AND YIELD OF AUS RICE
A field experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka, during the period from April to August 2010 to investigate the effect of variety and row spacing on morpho-physiological characters, yield attributes and yield of Aus rice. The experiment comprised four varieties viz., BR26, BRRI dhan42, BRRI dhan43 and BRRI dhan48 and four row spacings viz. 15, 20, 25 and 30 cm. The plant to plant distance was 15 cm. The experiment was laid out in two factors randomized complete block design with three replications. The plant height, effective tiller number hill-1, total dry mass (TDM) hill-1, absolute growth rate (AGR), relative growth rate (RGR), grain yield, harvest index (HI), and yield attributes were significantly influenced by row spacing in rice. Results revealed that plant height increased with decreasing row spacing while number of effective tillers and total tillers hill-1, TDM hill-1, AGR and RGR, filled and unfilled grains hill-1 increased with increasing row spacing but in case of unit area basis, the grain and straw yield and HI were greater at closer row spacing than wider spacing. The higher grain and straw yield and HI were observed in 15 and 20 cm row spacings compared to 25 and 30 cm spacings with being the highest in 20 cm row spacing (3.42 and 5.68 t ha-1 for grain and straw yield, respectively). While the lowest grain and straw yield per hectare was recorded in 30 cm row spacing. Among the varieties, BRRI dhan48 was superior in relation to plant height, TDM hill-1, AGR, RGR, total tiller number hill-1 and 1000-grain weight which resulted the highest grain yield hectare-1 (3.97 t ha-1. In contrast, the lowest above studied parameters were observed in BRRI dhan42 and resulted the lowest grain yield hectare-1 (2.58 t ha-1). The interaction effect of variety and row spacing on plant parameters was significant except 1000-grain weight. BRRI dhan48 in combination with any of the 4 spacings produced higher grain yield than each of the combination made by the rest 3 varieties with the spacings and the highest grain yield 4.40 t ha-1 was obtained by the variety BRRI dhan48 with the row spacings 20 cm. BR 26 in the interaction effect performed better than those of BRRI dhan42 and BRRI dhan43 and the lowest yield 1.90 t ha-1 was obtained by BRRI dhan42 with 30 cm row spacing.
Determination of Ideal Spacing for the Growth and Development of Boro Rice BRRI Dhan47
Asian journal of advances in agricultural research, 2024
A study was carried out in the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh, Bangladesh to investigate the impact of spacing on the growth and yield of Boro rice cv. BRRI Dhan47. The experiment consisted of four spacings viz. 25 cm × 10 cm, 25 cm × 15 cm, 25 cm × 20 cm and 25 cm × 25 cm as treatment. The experiment was laid out in a randomized complete block design with three replications. Spacing significantly influenced most of the parameters except plant height, panicle length and weight of 1000 grain. The highest number of total tillers hill-1, non-effective tillers hill-1, sterile spikelets panicle-1, total spikelets panicle-1
Pharma innovation, 2022
A pot culture experiment entitled "Impact of inorganic nitrogenous fertilizers and FYM combinations on plant height at various phases of rice growth and combinations on number of tillers per hill at various stages of effective tillers per hill during rice harvest (Oryza sativa L.)" was conducted at Institute of Agricultural Sciences farm, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar Odisha. on sandy loam soil during kharif 2018-2019.The experiment consisted of eight treatments viz. T1-Control, T2-50% RDF, T3-50% RDF + FYM @ 5 t ha-1 , T4-75% RDF, T5-75% RDF + FYM @ 5 t ha-1 , T6-100% RDF (NPK 80:40:40), T7-100% RDF + FYM @ 5 t ha-1 and T8-150% RDF. The experiment was laid out in a Randomized Block Design with three replications. The results revealed that highest and significant values were recorded with respect to growth parameters i.e., plant height, number of tillers per hill, effective tillers per hill and yield attributes i.e., number of panicles per hill, panicle length, number of filled grains 1000 seed weight (test weight) in the treatment that received 100% RDF + FYM @ 5t ha-1. Combination of FYM (5 t ha-1) with lower levels of RDF (50 and 75% RDF) also registered higher increase in the above parameters as compared to the application of inorganic fertilizers alone with the corresponding levels. Grain and straw yields followed the same trend as that of growth parameters and at higher levels of nitrogen in the inorganic form (150 % RDF) the values of the various parameters including grain and straw yield were significantly lower than the treatment where 100% RDF +FYM @ 5 t ha-1 was applied. . More nutrient content (N, P, K) in grain and straw was observed with the application of 100% RDF + FYM @ 5t ha-1 as compared with 100 and 150% RDF. With the combined application of 100 percent RDF as an inorganic source and 5tha-1 FYM as an organic source, improvements in physicochemical characteristics such as organic carbon, bulk density, porosity, and accessible macro nutrients (N,P,K) were found.
Effect of Row Spacing on Yield of Short Duration Transplant Aman Rice Varieties
Acta Scientifica Malaysia
An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during July to December 2015 to evaluate the effect of row spacing on the performance of three short duration transplant Aman rice varieties. The experiment consisted of three rice varieties viz. Binadhan-7, BRRI dhan39 and BRRI dhan49 and five row spacings viz. 15cm×15cm, 20cm×15cm, 25cm×15cm, 30cm×15cm, 35cm×15cm. The experiment was laid out in randomized complete block design with three replications. Results revealed that crop characters, yield contributing characters and yield were significantly influenced by variety, row spacing and their interaction. The highest plant height (112.31 cm), panicle length (24.74 cm), number of grains panicle-1 (120.35) and biological yield (9.88 t ha-1) were obtained in BRRI dhan39,while the highest number of total tillers hill-1 (10.00), effective tillers hill-1 (8.35), grain yield (3.75 t ha-1) and harvest index (41.10 %) were found in BRRI dhan49. In case of row spacing the tallest plant (107.70 cm), the highest number of effective tillers hill-1 (9.23) were obtained at 35cm × 15cm row spacing, whereas the highest number of grains panicle-1 (119.52), 1000-grain weight (24.87 g), grain yield (3.80 t ha-1) and harvest index(40.29) were obtained at row spacing 25cm × 15cm. In case of interaction the highest grain yield (4.44 t ha-1) and harvest index (46.20%) were obtained in BRRI dhan49 with the row spacing of 25cm × 15 cm. The experimental result concludes that BRRI dhan49 transplanted at 25cm × 15cm row spacing could be a promising practice in terms of grain yield.
Tiller Production and Yield Improvement of T. Aman Rice Varieties Through Wider Spacing
Abstract: Performance of three T. aman rice variety namely, Biroyn (Indigenous) (V1), BINA dhan7 (V2) and BRRI dhan34 (V3) were evaluated with three levels of plant population density viz. raised bed with plant spacing of 75 cm x 75 cm (S1), leveled bed with plant spacing of 50 cm x 50 cm (S2) and leveled bed with plant spacing of 25 cm x 15 cm (S3). Variety exerted significant influence on yield of transplant aman rice. The highest grain yield (7.1 t ha 1) and straw yield (11.7 t ha 1) was observed in Biroyn indigenous variety. The plant spacing of 50 cm x 50 cm showed the highest (6.8 t ha 1) grain yield and straw yield (9.6 t ha 1) among the plant population treatments. It was observed that in most of the cases, all the varieties performed better for their yield contributing characters with wider spacing of 50 cm x 50 cm. With attention to results of this experiment due to higher (9.2 t ha 1) grain yield in V S treatment this level suggest for planting the indigenous Biroyn variety 1 2 with 50 cm x 50 cm spacing in transplant aman season. Besides this, genotype presumes a promising one deserves extensive research onwards.
2020
A field experiment was carried out at the Rice Research Station in the Mashkhab Sub-District, Department of the General Committee for Agricultural Research during the 2014 growing season to study the effect of different types of transplant spacing and soil amendment in growth and yield of rice cultivar Yasmin. The experiment was RCBD factorial with three replicates. First factor was three plant spacing (10x20, 15x25 and 20x30 cm) while the second factor was using three types of plant residues (organic matter) including corncobs, river algae powder and hornwort Ceratophyllum residues. The results showed a decrease in the number of days from planting until the physiological maturity in the 20x30 spacing. The 10×20 spacing resulted in the highest numbers of filled grains/panicle, panicles/unit area, yield and biological yield. Whereas, the treatment of the 20 × 30 spacing had the highest plant height, weight of 1000 grains and harvest index. The control treatment (no soil amendment) re...