scholarly journals Assessment of management modules against yellow stem borer in paddy

2021 ◽  
Vol 8 (2) ◽  
pp. 117-119
Author(s):  
SURYA BHUSHAN ◽  
RAVI SHANKER
Keyword(s):  
Field Experiments ◽  
Maximum Yield ◽  
Stem Borer ◽  
Cost Ratio ◽  
Kharif Season ◽  
Benefit Cost Ratio ◽  
Yellow Stem Borer ◽  
Benefit Cost

Yellow stem borer (YSB) is one of the most serious and monophagous pest of paddy in India. Field experiments were carried out to assess the different management modules against the yellow stem borer in paddy during the Kharif season of 2019 and 2020. The results on efficacy of modules revealed that during both the years the minimum ‘Dead Heart’ (DH) (10.1 and 11.4% during the year 2019 and 2020, respectively) was recorded in M3 (clipping of terminal shoots at the time of transplanting and application of cartap hydrochloride 50 SP) followed by M2 (11.9 and 14.5% during the year 2019 and 2020, respectively) in which 1st application was done with fipronil 0.3G and 2nd with NSKE 5% and M1 (19.6 and 20.9% during the year 2019 and 2020, respectively) i.e. farmers’ practice where only carbofuran 3G was applied. ‘White Ear Head’ (WEH) was also recorded minimum in M3 (11.6 and 12.1% in the year 2019 and 2020, respectively) followed by M2 (13.3 and 16.4% in the year 2019 and 2020, respectively) and M1 (20.8 and 22.4% in the year 2019 and 2020, respectively) in paddy. Maximum yield (33.8 and 43.1 q/ha during the year 2019 and 2020, respectively) was also recorded in Module 3 practiced clipping of terminal shoots and spraying with cartap hydrochloride 50 SP with the highest BC(Benefit: Cost) ratio 1.52:1 and 1.94:1 in the year 2019 and 2020, respectively. The overall results of the present study indicating the overall superiority of M3 (clipping of terminal shoots at the time of transplanting and two applications of cartap hydrochloride 50 SP at 40 and 60 DAT) in all the aspects i.e. DH, WEH, yield and BC ratio.

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

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

Management of emerged weeds in irrigated blackgram (Vigna mungo L.) through post-emergence herbicides

2015 ◽  
Author(s):  
T. Ramesh ◽  
S. Rathika
Keyword(s):  
Field Experiments ◽  
Dry Weight ◽  
Cost Ratio ◽  
Treatment Schedule ◽  
Benefit Cost Ratio ◽  
Net Returns ◽  
Combined Application ◽  
Hand Weeding ◽  
Benefit Cost ◽  
Quizalofop Ethyl

Field experiments were conducted during summer (April to June), 2010 and 2011 to study the effect of post-emergence herbicides in irrigated blackgram (ADT 5). Treatments comprising of three levels (50, 75 and 100 g /ha) of the post- emergence herbicides viz., Imazethapyr 10% SL and Quizalofop ethyl 5% EC were tested alone and in combination and compared with hand weeding twice on 15 and 30 DAS(farmers’ practice). Herbicides were sprayed on 15 DAS when the weeds were 2-4 leaves stage using flat-fan nozzle as per treatment schedule. The results revealed that minimum total weed density (8.44) and weed dry weight ( 27.2 g/m2) and higher weed control efficiency (84.4%) were obtained under combined application of imazethapyr and quizalofop ethyl as tank mix at 100 g /ha. However, this was comparable with application of both the herbicides at 75g /ha. Application of imazethapyr + quizalofop ethyl each at 75 g/ha registered significantly taller plants, higher dry matter production, more number of pods per plant, seeds per pod and higher grain yield (826 kg/ha), net returns (Rs.26621/ha) and benefit cost ratio (2.76). Thus, application of post- emergence herbicides imazethapyr + quizalofop ethyl each at 75 g /ha as tank mix on 15 DAS could be recommended for controlling of emerged weeds in irrigated blackgram.

scholarly journals Management Of Thrips And Pod Borers Using Chemicals, Botanicals And Biopesticides In Mungbean

2020 ◽  
Vol 17 (2) ◽  
pp. 79-91
Author(s):  
KN Islam ◽  
MMH Khan ◽  
MA Latif ◽  
MM Uddin ◽  
MM Islam
Keyword(s):  
Control Measure ◽  
Block Design ◽  
Maximum Yield ◽  
Effective Control ◽  
Cost Ratio ◽  
Marginal Benefit ◽  
Benefit Cost Ratio ◽  
Pod Borer ◽  
Legume Pod Borer ◽  
Benefit Cost

The experiment was conducted to find out effective control measure against thrips and pod borers of mungbean by various means, including chemicals, botanicals and biopesticide. The mungbean variety, BARI Mung-6 was grown in the field and six treatments viz., T1 [Azadirachtin (Bioneem plus 1EC)], T2 [Bacillus thuringiensis (Bt. powder)], T3 [Spinosad (Tracer 45SC)], T4 [Chlorpyrifos + Cypermethrin (Nitro 505EC)], T5 [Thiamethoxam + Chlorantraniliprole (Voliam flexi 300SC)] and T0 [Untreated control (water spray)] were set in randomized complete block design (RCBD) with three replications. The insecticidal treatment options showed significantly different performance against thrips (Megalurothrips distalis), gram pod borer (Helicoverpa armigera) and legume pod borer (Maruca vitrata) on mungbean. The lowest population of thrips, gram pod borer and legume pod borer was found in Voliam flexi 300SC treated plot which showed maximum percent reduction of these pests. The lowest percent pod infestation by pod borers observed by the same treatment. Bioneem plus showed the intermediate results considering all the parameters. The maximum yield (1254.50 kg ha-1) and the highest marginal benefit cost ratio (MBCR) (6.68) were obtained from Voliam flexi 300SC. Considering effectiveness and marginal benefit cost ratio, Voliam flexi 300SC was more effective among treatments for controlling thrips and pod borers of mungbean followed by Nitro 505EC. SAARC J. Agri., 17(2): 79-91 (2019)

Effect of crop establishment methods on yield and economics of cultivation of wheat

2020 ◽  
Vol 44 (03) ◽  
pp. 16-22
Author(s):  
Subhash Chandra ◽  
Sidhhartha Raj ◽  
J.P. Sinha ◽  
Anni Singh ◽  
Anil Kumar Sharma
Keyword(s):  
Sandy Loam ◽  
Maximum Yield ◽  
Cost Ratio ◽  
Net Return ◽  
Seed Rate ◽  
Benefit Cost Ratio ◽  
Wheat Cultivation ◽  
Loam Soil ◽  
Benefit Cost ◽  
Seeding Efficiency

Zero till seed-cum-ferti drill, rice-wheat seeder and broadcasting method, as treatments T1 , T2 & T3 respectively, were used for wheat sowing at 100.0 kg/ha seed rate in pulverized sandy loam soil. Rice-wheat seeder delivered optimum seed rate upon maintenance of minimum of 3.75 kg seed per box. At every 52.0 meter run of machine 0.5 kg seed was to be filled in seed boxes to maintain uniform seeding at 100.0 kg/ha seed rate. The machines in treatment T1 and T2 had field capacities 0.49 ha/h and 0.169 ha/h and field efficiencies 71% & 82% respectively. Rice wheat seeder had registered 96.19% seeding efficiency in comparison to 97.67% seeding efficiency of seed drill. Maximum yield (4.27 t) was obtained in treatment T2, followed by treatment T1 (4.186 t) and T3 (4.08 t). Benefit-cost ratio of treatment T3 was found highest 4.77:1 followed by treatment T2 (4.66:1) in spite of minimum net return per hectare (Rs.71607.0) among all treatments. Highest net return/ ha of Rs.74454.0 was in treatment T2 , followed by treatment T1 (Rs.72089.0). Obviously, yield and economics of use of rice wheat seeder equipment justifies its utility for wheat cultivation by small and marginal farmers.

Effect of integrated nutrient management on productivity, soil fertility and economics of blackgram (Vigna mungo) varieties under rainfed condition

2015 ◽  
Author(s):  
B. S. Meena ◽  
Baldev Ram
Keyword(s):  
Seed Yield ◽  
Management Practices ◽  
Field Experiments ◽  
Nutrient Management ◽  
Cost Ratio ◽  
Phosphate Solubilizing Bacteria ◽  
Net Return ◽  
Benefit Cost Ratio ◽  
Phosphate Solubilizing ◽  
Benefit Cost

Field experiments were conducted during kharif seasons on 7th and 10th July of 2010 and 2011 respectively to find out suitable nutrient management practices for blackgram varieties at farmer's field at Humerhedi, Kota district. The treatments consisted of 5 blackgram varieties (viz. PU 31, PU 30, KU 96-3, T 9 and Krishna) and 9 nutrient management practices (viz. T1: No application of NP, T2: P (17.2 kg/ha as farmer's practice), T3: NP (20:17.2 kg/ha as RDF), T4: RDF+16.6 kg K/ha, T5: RDF+16.6 kg K+20 kg S/ha, T6: RDF+16.6 kg K+20 kg S+3 kg Zn/ha, T7: RDF+16.6 kg K+20 kg S+3 kg Zn/ha + Rhizobium, T8: RDF+16.6 kg K+20 kg S+3 kg Zn/ha+Rhizobium (RZ) +Phosphate solubilizing bacteria (PSB) and T9: RDF+16.6 kg K+20 kg S+3 kg Zn/ha + RZ + PSB + 5 t FYM/ha. Application of RDF + 16.6 kg K + 20 kg S + 3 kg Zn /ha along with seed inoculation with Rhizobium + PSB recorded significantly taller plants, higher number of branches/plant, pods/plant, higher seed yield, net return and benefit: cost ratio over control, farmer practice, RDF, RDF + 16.6 kg K/ha and RDF + 16.6 kg K/ha+20 kg S/ha but at par with rest of treatments viz. RDF+16.6 kg K+20 kg S+3 kg Zn/ha + Rhizobium,RDF+16.6 kg K+20 kg S+3 kg Zn/ha+Rhizobium + Phosphate solubilizing bacteria and RDF+16.6 kg K+20 kg S+3 kg Zn/ha + RZ + PSB + 5 t FYM/ha. Whereas application of RDF + 16.6 kg K + 20 kg S + 3 kg Zn/ha + Rhizobium + PSB + 5 t FYM/ha significantly recorded higher available organic carbon, nitrogen, phosphorus, potassium, sulphur and zinc contents in the soil over rest of the treatments. Among the genotypes, 'KU 96-3' recorded significantly higher branches/plant, pods/plant, seeds/pod, seed index, seed yield, net return and B: C ratio.

scholarly journals Yield and economics of chilli hybrid Sitara with the use of different nutrient management practices and organic amendments

2018 ◽  
Author(s):  
B. M. Ranjitha ◽  
T. B. Allolli ◽  
D. R. Jhanavi ◽  
N. Kavyashree ◽  
S. Gururaj ◽  
...  
Keyword(s):  
Field Experiment ◽  
Management Practices ◽  
Nutrient Management ◽  
Maximum Yield ◽  
Organic Amendments ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Yield Parameters ◽  
High Benefit ◽  
Benefit Cost

A field experiment was conducted in Dharwad district, Karnataka during kharif season of 2015-2016, with an objective to assess the effectiveness of nutrient management practices and organic amendments on yield and economics of chilli (Capsicum annuum L.) hybrid Sitara. The results revealed that the maximum yield parameters were recorded due to adoption of INM practices (among nutrient management practices) and Panchagavya (among organic amendments). INM practices and Panchagavya recorded high Benefit: cost ratio of 2.7 and 2.6 respectively.

scholarly journals Effect of Sowing Date of Sweet Corn on Potato + Sweet Corn Intercropping System

2016 ◽  
Vol 18 (2) ◽  
pp. 15-21
Author(s):  
AA Begum ◽  
MN Islam ◽  
SS Kakon ◽  
MAHM Kamal ◽  
MA Aziz ◽  
...  
Keyword(s):  
Sweet Corn ◽  
Agricultural Research ◽  
Maximum Yield ◽  
Sowing Date ◽  
Research Field ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin ◽  
Benefit Cost Ratio ◽  
Benefit Cost

An experiment was conducted at the Agronomy research field of Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur and at Regional Agricultural Research Station, Burirhat, Rangpur during Rabi season of 2013-14 and 2014-15 to find out optimum sowing date of sweet corn in potato + sweet corn intercropping system for getting maximum yield and economic return. Six treatments viz., simultaneous sowing of potato and sweet corn, sweet corn sown at 10 days after potato planting (DAPP), sweet corn sown 20 DAPP, sweet corn sown 30 DAPP, sole potato and sole sweet corn were tested in this study. Sweet corn sown at 20 DPP produced the highest potato equivalent yield (Joydebpur: 41.41 t ha-1 in 2013-14 and 42.22 t ha-1 in 2014-15 and Rangpur: 42.29 t ha-1 in 2013-14 and 42.52 t ha-1 in 2014-15). The highest gross return at Joydebpur Tk. 431050 ha-1 and at Rangpur Tk. 436248 ha-1, gross margin at Joydebpur Tk. 286805 ha-1 and at Rangpur Tk. 271985 ha-1 and benefit cost ratio at Joydebpur 2.99 and at Rangpur 3.01 were observed over the years in the same treatment. In this treatment, tuber yield was reduced 3.4-4.1% in Joydebpur and 7.8-8.4% in Rangpur due to intercropping. The result indicated that sweet corn sown 20 DAPP might be suitable intercrop combination for getting maximum yield and economic return.Bangladesh Agron. J. 2015, 18(2): 15-21

scholarly journals Performance evaluation of modified BAU self-propelled reaper for paddy

2018 ◽  
Vol 16 (2) ◽  
pp. 171-177 ◽  
Author(s):  
Md Mahamudun Noby ◽  
Md Kamrul Hasan ◽  
Md Rostom Ali ◽  
Chayan Kumer Saha ◽  
Md Monjurul Alam ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Field Experiments ◽  
Field Capacity ◽  
Effective Field ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Agrarian Economy ◽  
Field Efficiency ◽  
Benefit Cost ◽  
Better Than

Bangladesh has an agrarian economy in which paddy is the dominant crop. A significant amount of field losses of paddy occurs every year due to natural calamities and a shortage of time during the harvesting period. During this study, a modification was done on locally developed BAU self-propelled reaper and its performance was compared with manual harvesting system of paddy. Several experiments were conducted in Boro paddy (April–May 2017) and Aman paddy harvesting (November–December 2017) at BAU farm of Bangladesh Agricultural University after necessary modification works in the workshop. An experiment was also conducted on Aman paddy in 2017 at BAU farm for determining manual harvesting cost. The technical and economic performances of the modified BAU self-propelled reaper were determined based on the field experiments. Results reveal that average fuel consumption, effective field capacity and field efficiency were 2.71 L/ha, 0.255 ha/h and 77.27%, respectively for the modified BAU self-propelled reaper and 2.88 L/ha, 0.25 ha/h and 75.76%, respectively for the existing BAU self-propelled reaper. These results indicated that field performances of modified BAU self-propelled reaper were better than that of the existing BAU reaper. Paddy harvesting cost was found 916 Tk/ha for modified BAU self-propelled reaper and 9200 Tk/ha for manual harvesting system. The benefit-cost ratio of the modified BAU self-propelled reaper was 2.18. Considering the technical and economic performances, modified BAU self-propelled reaper was found suitable than the existing BAU reaper.  So, the modified BAU self-propelled reaper may be introduced in Bangladesh in the commercial basis.J. Bangladesh Agril. Univ. 16(2): 171-177, August 2018

A model for deficit irrigation analysis of crops

2009 ◽  
Vol 5 (1) ◽  
pp. 31-53
Author(s):  
K. Adekalu ◽  
D. Okunade
Keyword(s):  
Soil Water ◽  
Deficit Irrigation ◽  
Maximum Yield ◽  
Irrigation Scheduling ◽  
Rooting Depth ◽  
Irrigated Agriculture ◽  
Cost Ratio ◽  
Water Reduction ◽  
Benefit Cost Ratio ◽  
Benefit Cost

Scarcity and high cost of water is the most important limiting factor for crop production in irrigated agriculture. Deficit irrigation can be implemented to optimize the use of available water resources and put more land on productive use. A model was developed to determine the savings in water and the economic benefit derived from deficit irrigation. The model was tested using yield-water use data of maize, tomato, okra and cowpea grown under irrigated condition in Nigeria. Cowpea is the main source of plant protein in the local diet and okra one of the major vegetable crops planted in Nigeria. The results indicated that some water reduction is possible without affecting yields. The optimum water reduction is 4, 8, 12 and 18% for maize, tomato, okra and cowpea, respectively. Maximum allowable water reduction increased with increase in the benefit-cost ratio of each tested crop. The maximum allowable water reduction is 9, 13, 21 and 32%, with a corresponding increase in cultivated area by 10, 16, 23 and 50% for maize, tomato, okra and cowpea, respectively, at a benefit-cost ratio of 1.5. The model, in most of the years showed that the optimum moisture reduction level increased with increasing seasonal rainfall. Increasing rooting depth or soil water holding capacity also increased the relative maximum yield for water reduction levels up to 40–50%. The developed model would be useful in determining the effect of soil, water, and crop variables on deficit irrigation of crops in different agro-ecological zones with appropriate crop and soil data input, and proper irrigation scheduling.

scholarly journals Management of brinjal shoot and fruit borer using selected botanicals

2018 ◽  
Vol 43 (3) ◽  
pp. 431-440
Author(s):  
H Sultana ◽  
MA Mannan ◽  
MM Kamal ◽  
KG Quddus ◽  
S Das
Keyword(s):  
Leaf Extract ◽  
Maximum Yield ◽  
Vegetative Stage ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Fruiting Stage ◽  
Fruit Borer ◽  
Benefit Cost ◽  
Neem Leaf Extract ◽  
Treated Plot

The study was conducted to evaluate the effect of botanicals namely neem leaf extract, neem oil, mahogany oil, mahogany oil + mahogany cake, garlic extract, tobacco leaf extract along with an untreated control to manage brinjal shoot and fruit borer (BSFB). The percent shoot infestation reduction over control was the highest in mahogany oil + mahogany cake treated plot resulting 62.39%, 64.44%, 67.86% and 71.05% reduction at vegetative stage and early, mid and late fruiting stage, respectively. The same treatment provided the highest fruit infestation reduction over control resulting 86.70%, 85.08% and 85.50% reduction at early, mid and late fruiting stage, respectively. The lowest number of larvae per infested shoot was recorded 1.10 and 1.08 in the same treatment at early and mid fruiting stage, respectively but notat vegetative stage and late fruiting stages. The number of larvae per infested fruit was similarly lowest having 1.50, 1.06 and 1.07 at early, mid and late fruiting stage, respectively using the same approach. The maximum yield (35.82 t ha-1) was achieved in the mahogany oil + mahogany cake treated plot with the highest benefit cost ratio (2.35).Bangladesh J. Agril. Res. 43(3): 431-440, September 2018

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