Pollinators diversity and their effects on rapeseed (Brassica campestris L. var. toria) production and productivity in Chitwan, Nepal

Crop pollination is crucial for increasing yield, ensuring food security and improving livelihoods. To quantify the response of pollinators on rapeseed, an experiment was conducted in randomized complete block design (RCBD) at three agro-ecological sites: Semi-natural (Megauli), organic (Fulbari) and intensive agriculture (Jutpani) Village Development Committees of Chitwan district in 2012/013 and 20013/014. The treatments were: i) open pollination; ii) plants caged with honeybees (Apis melifera L.); iii) hand pollination; and iv) control (plots caged without pollinators) replicated four times. Pollinators visiting rapeseed flowers, plant height, branch number, siliqua/plant, pods weight/ siliqua, test weight, and seed yield/hectare were recorded. The dominant pollinators were Hymenopterans mostly honeybees. The impact of pollinators on each system resulted in significantly increased yield attributes compared to no-pollination, which clearly indicates the need of integrating managed pollination and pollinators' conservation to sustain rapeseed production in Chitwan through biodiversity-based ecosystem services.

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Yield attributes and oil content of different mustard (Brassica campestris l.) varieties effected by different levels of fertilizers

Asian Journal of Medical and Biological Research ◽

10.3329/ajmbr.v2i1.27580 ◽

2016 ◽

Vol 2 (1) ◽

pp. 143-147

Author(s):

Kamol Kumar Barman ◽

Sakil Mahmud ◽

Muhammad Salim ◽

Bishan Lal Das Chowdhury

Keyword(s):

Oil Content ◽

Brassica Campestris ◽

Block Design ◽

Yield Attributes ◽

Brassica Spp ◽

Randomized Complete Block Design ◽

Dose Control ◽

Different Levels ◽

Number Of Seeds ◽

Number Of Branches

An experiment was conducted at the Agronomy Field Laboratory and Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh during the period from November 2013 to February 2014 to find out the appropriate fertilizer dose and best variety on the yield and oil content of mustard (Brassica spp). The experiment consisted of four fertilizer treatments viz., 0 fertilizer dose (control), 50% of recommended fertilizer dose, 100% recommended fertilizer dose and 150% of recommended fertilizer dose and three varieties viz. BINA Sarisha-5, BINA Sarisha-8 and Tori-7. The experiment was laid out in a two factor randomized complete block design with three replications. Both fertilizer dose and variety had significant effect on plant height (cm), number of branches plant-1, number of siliqua plant-1, siliqua length (cm), number of seeds siliqua-1, 1000 seed weight (g) and oil content (%). The interaction of fertilizer dose and variety had significant effect on all the plant characters except oil content of mustard (Brassica spp). The best result of the above characters was recorded in 100% recommended fertilizer dose in combination with BINA Sarisha-8. The next best result was obtained from 100% recommended fertilizer dose in combination with BINA Sarisha-5.Asian J. Med. Biol. Res. March 2016, 2(1): 143-147

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Effect of spacing and fertilizer management on the yield and yield attributes of mukhikachu (Colocasia esculenta Schott.)

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v41i4.30703 ◽

2016 ◽

Vol 41 (4) ◽

pp. 713-723

Author(s):

S Akther ◽

F Ahmed ◽

MR Islam ◽

MA Hossen ◽

AHMM Rahman Talukder

Keyword(s):

Field Experiments ◽

Block Design ◽

Recommended Dose ◽

Cost Ratio ◽

Plant Spacing ◽

Yield Attributes ◽

Benefit Cost Ratio ◽

Maximum Benefit ◽

Randomized Complete Block Design ◽

Benefit Cost

Field experiments were carried out in the Agronomy field of BARI, Joydebpur, RARS, Jamalpur and RARS, Ishurdi during two consecutive kharif seasons of 2012 and 2013 to determine the suitable plant spacing and optimum fertilizer dose for higher yield of mukhikachu. Three levels of spacing viz., 60 cm x 60 cm, 60 cm x 45 cm and 60 cm x 30 cm and three levels of fertilizer dose viz., recommended dose (3000-96-27-81-18 kg ha-1 of CD-N-P-K-S), 25% less than the recommended dose and 25% higher than the recommended dose were used as treatment variables. The experiments were laid out in factorial randomized complete block design with three replications. Results revealed that the closer spacing (60 cm x 30 cm) in combination with 25% higher than the recommended fertilizer dose gave the maximum edible yield of mukhikachu (two years average) at all locations (20.04 t ha-1, 20.75 t ha-1 and 16.63 t ha-1 at Joydebpur, Jamalpur and Ishurdi, respectively). The wider spacing (60 cm x 60 cm) coupled with 25% less than the recommended fertilizer dose produced the lowest yield (two years average). The maximum benefit- cost ratio (two years average) was obtained from the combination of the recommended fertilizer dose and 60 cm x 30 cm spacing, that were 2.93 at Joydebpur and 3.42 at Ishurdi, while at Jamalpur the maximum benefit-cost ratio (two years average) was found maximum from 60 cm x 30 cm spacing with 25% higher than the recommended fertilizer dose (3.12).Bangladesh J. Agril. Res. 41(4): 713-723, December 2016

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GROWTH AND YIELD EVALUATION OF MUSTARD VARIETIES GROWN IN A MEDIUM HIGHLAND OF KHULNA REGION

Khulna University Studies ◽

10.53808/kus.2021.18.1.1811-l ◽

2021 ◽

Vol 18 (1) ◽

pp. 1-8

Keyword(s):

Seed Weight ◽

Harvest Index ◽

Block Design ◽

Growth Yield ◽

Growth And Yield ◽

Rabi Season ◽

Yield Attributes ◽

Randomized Complete Block Design ◽

Stover Yield ◽

Number Of Seeds

The present research was conducted at the experimental field of Agrotechnology Discipline, Khulna University, Khulna during Rabi season 2016-17 to investigate the growth and yield performance of mustard varieties. The experiment was arranged in a randomized complete block design consisting of eight mustard varieties (viz. BARI Sarisha-8, BARI Sarisha-11, BARI Sarisha-13, BARI Sarisha-14, BARI Sarisha-15, BARI Sarisha-16, Rai and Tori-7) as treatment and replicated thrice. All the growth, yield attributes and yield were substantially influence among the mustard varieties except the phenological parameters. Results of the experiment showed that the highest plant height (131.33 cm), seed yield (1813.33 kg ha-1) and stover yield (3876.67 kg ha-1) were found in BARI Sarisha-16. BARI Sarisha-11 was found better in respect of maximum siliqua plant-1, weight of seeds plant-1, 1000-seed weight and harvest index. Besides this, BARI Sarisha-14 showed the maximum number of seeds siliqua-1. Therefore, findings of this study suggested that BARI Sarisha-16 would be suitable for better productivity and recommended for cultivation in the medium highland of Khulna region of Bangladesh.

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Effect of farrowing pen size on pre-weaning performance of piglets

Translational Animal Science ◽

10.1093/tas/txab123 ◽

2021 ◽

Author(s):

Katherine D Vande Pol ◽

Austin L Laudwig ◽

Aaron M Gaines ◽

Beau A Peterson ◽

Caleb M Shull ◽

...

Keyword(s):

Litter Size ◽

Block Design ◽

Commercial Production ◽

Experimental Unit ◽

Pig Production ◽

Time Period ◽

Randomized Complete Block Design ◽

The Impact ◽

Cross Fostering ◽

Size At Birth

Abstract Litter sizes in commercial pig production have increased substantially over recent years; however, farrowing pen sizes have generally not changed over the same time period. The objective of this study was to evaluate the effect of farrowing pen size on piglet pre-weaning growth and mortality. Differences in pen size were created by varying the width of pens of the same length, increasing the creep area available to the piglets. The study used a total of 1,786 litters in a randomized complete block design to compare two Farrowing Pen Size treatments (FPS): Standard (pen width 1.52 m) and Increased (pen width 1.68 m). Litter sizes were equalized across treatments (12.9 ± 1.95 piglets) at 24 h after birth using cross-fostering. Litter weights were collected at birth and weaning (21.3 ± 2.08 d); pre-weaning mortality was recorded. The experimental unit was the litter; models included FPS and replicate. Farrowing Pen Size had no effect (P > 0.05) on litter size at birth (12.8 and 13.0 for the Standard and Increased FPS, respectively), after cross-fostering (12.9 for both treatments), or at weaning (11.2 and 11.3, respectively). There was no effect (P > 0.05) of FPS on total litter or average piglet weight at birth, after cross-fostering, and at weaning. These results suggest no benefit in piglet performance from increasing the width of farrowing pens. As litter sizes continue to increase in commercial production, further research is warranted to re-evaluate the impact of farrowing pen size on pre-weaning mortality.

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Evaluation of plantain genotypes for yield and other characters

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v43i1.36159 ◽

2018 ◽

Vol 43 (1) ◽

pp. 71-80

Author(s):

N Ara ◽

M Moniruzzaman ◽

R Khatoon ◽

M Moniruzzaman

Keyword(s):

Agricultural Research ◽

Block Design ◽

Fruit Size ◽

Productivity Index ◽

Maturity Stage ◽

Research Station ◽

Yield Attributes ◽

Yield And Quality ◽

Randomized Complete Block Design ◽

Better Than

An experiment was carried out at the Regional Agricultural Research Station, BARI, Ishurdi, Pabna during 2013-15, with eleven genotypes of plantain to evaluate their performances for yield attributes, yield and quality characters. The genotypes included in this investigation were MP001, MP002, MP003, MP006, MP007, MP015, MP018, MP024, MP025, ISD002 and BARI Kola-2 as check. The experiment was laid out in randomized complete block design with three replications. The genotype MP002 produced the maximum number of fingers/bunch (105.67) closely followed by BARI Kola-2 (103.00) and MP015 (101.00). Both the genotypes MP024 and MP025 showed the highest fruit length (21.70 cm), but ISD002 gave the maximum fruit girth (16.78 cm), which was statistically similar with that of MP003 (16.30 cm) and MP024 (16.33 cm). The highest yield and the maximum number of hands were produced by the genotype MP024 (47.81 t/ha and (8.33/bunch) followed by MP015 (36.70 t/ha and 6.33/bunch). Fingers of the genotypes required boiling time in the range of 20.00 min (MP001) to 15.00 min (BARI Kola-2). Flesh of all genotypes possesses pleasant aroma except MP002, MP003 and ISD002. Among the eleven genotypes MP001, MP006, MP007, MP008, MP015 and MP024 were found better when cooked as smashed. The genotype ISD002 took the maximum time (467.33 days) to reach the edible maturity stage of fruits whereas MP024 required the minimum (339.00 days). The genotypes MP015 and MP024 performed better than BARI Kola-2 in respect of bunch weight, fruit size, productivity index, yield, sucker production and qualitative characters.Bangladesh J. Agril. Res. 43(1): 71-80, March 2018

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Effect of planting density on yield and yield attributes of local aromatic rice varieties

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v43i3.38395 ◽

2018 ◽

Vol 43 (3) ◽

pp. 489-497

Author(s):

J Halder ◽

GM Rokon ◽

MA Islam ◽

N Salahin ◽

MK Alam

Keyword(s):

Block Design ◽

Grain Weight ◽

The Other ◽

Planting Density ◽

Aromatic Rice ◽

Rice Varieties ◽

Yield Attributes ◽

Straw Yield ◽

Randomized Complete Block Design ◽

1000 Grain Weight

An experiment was conducted at the Agronomy Field of Patuakhali Science and Technology University, Dumki, Patuakhali from June to December, 2013 to find out the effect of variety and planting density on the yield and yield attributing characters of local aromatic rice. The experiment was laid out in a factorial randomized complete block design with three replications, which consisted of three local aromatic rice varieties (Chinigura, Shakhorkhora and Kalizira) and four planting densities were viz. S1 (25 cm × 20 cm), S2 (20 cm × 20 cm), S3 (20 cm × 15 cm) and S4 (20 cm × 10 cm). The results revealed that the local aromatic rice var. Shakhorkhora variety produced the highest number of grains per panicle (131) and 1000-grain weight (13.8 g), consequently higher grain (2.63 t ha-1), followed by Kalizira (2.56 t ha-1) and straw yield (4.21 t ha-1). One the other hand, higher number of tillers per hill (14.8), number of grains per panicle (140 nos.) were found in 20 cm × 20 cm spacing with higher grain yield.Bangladesh J. Agril. Res. 43(3): 489-497, September 2018

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Impact of Brushing and Infill Maintenance on Field Safety of Third Generation Synthetic Turf

Proceedings ◽

10.3390/proceedings2020049034 ◽

2020 ◽

Vol 49 (1) ◽

pp. 34

Author(s):

Kyley Dickson ◽

John Sorochan ◽

William Strunk ◽

Taylor Williams

Keyword(s):

High Performance ◽

Block Design ◽

Surface Hardness ◽

Vital Role ◽

Third Generation ◽

Randomized Complete Block Design ◽

Split Plot ◽

Athletic Field ◽

The Impact ◽

Synthetic Turf

The objective of this study was to investigate the impact of brushing and infill maintenance of third generation (3G) synthetic turf on field safety. A split-plot randomized complete block design was used with six different fiber pile heights, infill depths, and shock pad combinations subjected to 120 games in the summer of 2017 at the Center for Athletic Field Safety (CAFS) in Knoxville, TN, USA. Traffic was applied with a CAFS traffic simulator. Half of the plots received maintenance every 20 games with a rotating power broom and infill applied to those below manufacturer’s recommendations. All 3G synthetic turf systems required maintenance to the same degree, and maintenance was necessary to keep surface hardness of 3G synthetic turf systems consistent and acceptable. Overall, field safety and consistency increased in this study due to maintenance, thus suggesting brushing and infill maintenance plays a vital role in maintaining high performance on 3G synthetic fields.

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Effects of potassium application on yield attributes, yield and grain quality of lentil in terrace soil of Joydebpur

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v44i4.45695 ◽

2020 ◽

Vol 44 (4) ◽

pp. 599-607

Author(s):

MA Quddus ◽

MA Hossain ◽

HM Naser ◽

S Aktar

Keyword(s):

Nutrient Concentration ◽

Grain Quality ◽

Block Design ◽

Research Field ◽

Yield Potential ◽

Yield Attributes ◽

Yield Increase ◽

Randomized Complete Block Design ◽

Yield Maximization

An experiment was conducted in the research field of Pulses Research Sub-Station, BARI, Gazipur during two consecutive years of 2015-16 and 2016-17 to determine the suitable dose of potassium for achieving higher yield attributes, nodulation, nutrient concentration and yield maximization of lentil. There were 5 treatments viz. T1 = Control, T2 = 30 kg K ha-1, T3= 40 kg K ha-1, T4= 50 kg K ha-1 and T5= 60 kg K ha-1 along with the blanket dose of fertilizers of N, P, S, Zn and B @ 15, 20, 10, 2 and 1.5 kg ha-1, respectively for all treatments. The experiment was laid out in randomized complete block design (RCBD) with three replications. Results revealed that the highest seed yield (1092 kg ha-1) of lentil (mean of two years) was found in T4 followed by T5 treatment and the lowest (736 kg ha-1) was noted in K control (T1) treatment. The highest % yield increase over control (48.3%) was recorded from T4 treatment. The maximum nodulation was found in T5 followed by T4 treatment. The highest protein (26.9%), N, P, K, S, Zn and B concentrations of lentil seed were recorded in T4 treatment. Therefore, the results suggest that the appliction of 50 kg K ha-1 along with N15P20S10Zn2B1.5 kg ha-1 are optimum for achieving higher yield potential of lentil in terrace soils of Bangladesh. Bangladesh J. Agril. Res. 44(4): 599-607, December 2019

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Effect of Urea Super Granule and Prilled Urea on Yield and Yield Attributes of Broccoli (Brassica oleracea var. italica L.)

The Agriculturists ◽

10.3329/agric.v14i2.31354 ◽

2017 ◽

Vol 14 (2) ◽

pp. 95-112

Author(s):

M J Hussain ◽

A J M S Karim ◽

A R M Solaiman ◽

M S Islam ◽

M Rahman

Keyword(s):

Block Design ◽

Growth Yield ◽

Quadratic Equation ◽

Growth And Yield ◽

High Yield ◽

Silty Clay ◽

Yield Attributes ◽

Prilled Urea ◽

Randomized Complete Block Design ◽

Loam Soil

A field experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during 2010-2011 to determine the effects and economic performance of urea super granule (USG) and prilled urea (PU) in terms of growth and yield of broccoli and to find out the optimum and economic doses of USG and PU for broccoli in Shallow Red-Brown Terrace Soil under Madhupur Tract. The experiment was laid out in a randomized complete block design with three replications having 17 treatment combinations constituted with different levels of urea super granule (USG) and prilled urea (PU). Result showed that yield of broccoli increased significantly with increasing rate of USG and PU. The treatments containing 160 kg N from USG and 180 kg N from PU exhibited the best performance on yield and yield contributing characters of broccoli having the head yield of 12.9 and 10.6 ton ha-1, respectively. All the yield contributing characters and the economic profitability were favorably correlated with these high yield performing treatments. The performance of USG in terms of growth, yield and yield attributes, head quality (compactness coefficient) and economic profitability was found significantly higher as compared to that of PU. Therefore, USG @ 160 kg N ha-1 and PU @ 180 kg N ha-1 alongwith other recommended fertilizerscould be suggested for broccoli production in terms of yield and economics. From quadratic equation USG @ 163 and 160 kg N ha-1 and PU @ 169 and 160 kg N ha-1 alongwith other recommended fertilizerscould be suggested as optimum and economic doses for broccoli production in Silty Clay Loam Soil of Madhupur Tract.The Agriculturists 2016; 14(2) 95-112

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Integrated effects of vermicompost with chemical fertilizers on the yield of mustard

Progressive Agriculture ◽

10.3329/pa.v31i2.50712 ◽

2020 ◽

Vol 31 (2) ◽

pp. 81-88

Author(s):

MA Haque ◽

MM Ali

Keyword(s):

Field Experiments ◽

Block Design ◽

Chemical Fertilizer ◽

Chemical Fertilizers ◽

Brassica Napus L ◽

Yield Attributes ◽

Cropping Season ◽

Native Soil ◽

Randomized Complete Block Design ◽

Agroecological Zones

Field experiments were conducted in three Agroecological zones (AEZ) at Farmer’s field, Rangpur (AEZ-3), Farmer’s field, Ishurdi (AEZ-11) and BINA farm, Mymensingh (AEZ-9) to investigate the integrated effect of vermicompost and chemical fertilizers (CF) on Mustard (Brassica napus L.) during 2017-18 cropping season to reduce the usage of chemical fertilizer for mustard cultivation. The experiments were carried out with eight treatments and three replications in Randomized Complete Block Design. The treatments for the crops used in the experiments were T1: Native soil fertility, T2:100% chemical fertilizer (CF),T3: 75% CF, T4: 75% CF + Vermicompost (VC) @ 4 t ha-1, T5:85% CF ,T6: 85% CF + VC @ 4 t ha-1 T7: 75% CF +VC @ 2 t ha-1 and T8: 85% CF+VC @ 2 tha-1. Fertilizers applied on the basis of soil test (STB). Application of vermicompost with chemical fertilizer increased the yield attributes and yields of mustard. The treatment T6 (85% CF + VC @ 4 tha-1) gave the tallest plant height, greatest number of pods plant-1 and siliqua pod-1 and maximum seed (1.82, 1.26 and 1.49 t ha-1 at Rangpur, Ishurdi and Mymensingh, respectively) and straw yields of mustard at all the location with the few exception. But the treatment T6 gave the identical results with the treatments T8, T4 and T2. Application of vermicompost also increased the N, P and K uptakes of mustard at all the location. The treatments T6 T8 and T4 gave statistically identical nutrients uptakes to the treatment T2 (100%CF). The results revealed that 75% CF with 4 t ha-1 vermicompost or 85% CF with 2 t ha-1 vermicompost almost equally effective to produce seed yield of mustard which was also comparable with the full dose (100%) of chemical fertilizers (NPKS) in all the location. Therefore 15-25% chemical fertilizer (NPKS) could be reduced either with the application of 75% CF with 4 t ha-1 vermicompost or 85% CF with 2 t ha-1 vermicompost for mustard cultivation. Progressive Agriculture 31 (2): 81-88, 2020

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