Nitrogen Requirement of Potato for Eastern Indo-Gangatic Plain of India

2020 ◽  
Vol 7 (03) ◽  
Author(s):  
S. K. YADAV ◽  
R. K. SINGH ◽  
V. K. DUA ◽  
S SINGH ◽  
SARALA YADAV ◽  
...  
Keyword(s):  
Tuber Yield ◽  
Potato Crop ◽  
Block Design ◽  
Nitrogen Level ◽  
Cost Ratio ◽  
Research Station ◽  
Net Benefit ◽  
Marketable Tuber ◽  
Benefit Cost Ratio ◽  
Significant Difference

A field experiment was carried out during 2015-16 and 2016-17 at ICAR-Central Potato Research Station, Patna, Bihar, in randomized block design with four replications with objective to quantity the optimum requirement of nitrogen to potato crop. Significantly the highest plant height was recorded with nitrogen level of 300 kg/ha. Distributions of the smallest size of tuber yield of potato were decreasing with increasing the level of nitrogen. There was about 26.0% more yield of the smallest size tuber of potato was recorded with zero nitrogen as compare to the highest level of nitrogen i.e. 300 kg/ha. Increasing the nitrogen over the level of 150 to 225 kg per hectare, increasing the yield of tuber gradually slower rate than nitrogen level from 0 to 150 kg/ha. Total and marketable tuber yield of potato were increasing significantly with increasing level of nitrogen up to 150 kg/ha. There was no significant difference in marketable tuber yield was found for nitrogen level between 150 and 225 kg/ha. Highest (1.66) net benefit cost ratio was also recorded with level of nitrogen @ 150 kg/ha in potato. Hence, application of nitrogen @ 150 kg/ha was found statistically and economically more beneficial for potato cultivation in Eastern Indo-Gangatic plain of India.

scholarly journals Yield Performance of Heat Tolerant & Early Maturing Wheat Varieties in Chattogram Region

2021 ◽  
pp. 82-96
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Cost Ratio ◽  
Research Station ◽  
Wheat Varieties ◽  
Benefit Cost Ratio ◽  
Significant Difference ◽  
Early Maturing ◽  
Heat Tolerant ◽  
Benefit Cost

The experiment was conducted in two consecutive crop seasons (2015-16 and 2016-17) at Regional Agricultural Research Station (RARS), Hathazari, Chattogram during Rabi season (November to March) with 3 duplicate laid out Randomized Complete Block Design (RCBD) to compare the rehearsal of high-placed outcome, early maturing and heat tolerant varieties under increasing temperature. BARI released early maturing wheat varieties were used for optimum sowing time and heat tolerance as an adaptive mechanism suffering from terminal heat stress. Six heat-tolerant early maturing wheat varieties were (BARI Gom 25, BARI Gom 26, BARI Gom 27, BARI Gom 28, BARI Gom 29, and BARI Gom 30). The highest crop output was gained from BARI Gom 30 (4.33 t/ha) followed by BARI Gom 26 (4.06 t/ha) in a couple of years. The lowest yield was found from BARI Gom 27 (2.66t/ha) followed by BARI Gom 29 (3.53 t/ha), BARI Gom 28 (3.36 t/ha), and BARI Gom 25 (3.13 t/ha) both years. Crop output of wheat and amount of spike showed significant difference and rest of the parameters were insignificant. The earliest maturing variety was BARI Gom 30 and produced a maximum crop yield than others. BARI Gom 30 showed a maximum benefit-cost ratio (BCR) of 1.73 and BARI Gom 27exhibited the lowest benefit-cost ratio (BCR) of 1.06. This result of the experiment showed that early high yielding variety and the best adaptive variety was BARI Gom 30 among the six varieties in Chattogram.

scholarly journals Tuber yield and economic result of ‘Atlantic’ potato in response to NPK fertilizer formulas

2019 ◽  
Vol 37 (4) ◽  
pp. 379-383
Author(s):  
Renato Yagi ◽  
Rogério P Soratto ◽  
Nilceu RX de Nazareno ◽  
Henrique L da Silva ◽  
Alexandre de C Dzierwa
Keyword(s):  
Specific Gravity ◽  
Soil Fertility ◽  
Tuber Yield ◽  
Potato Crop ◽  
Block Design ◽  
Operational Efficiency ◽  
Marketable Tuber ◽  
Randomized Complete Block Design ◽  
Npk Fertilizer ◽  
Fertilizer Rates

ABSTRACT The usual application of high 4-14-8 NPK fertilizer rates in the potato planting furrows, independently of the soil fertility or nutritional cultivar requirements, has become a paradigm in Brazil. However, the 4-14-8 NPK formula does not always meet the crop needs, and can unbalance the availability of nutrients in the soil. The objective of this study was to evaluate the tuber yield and economic results of ‘Atlantic’ potato as affected by rates of 4-14-8 and 6-30-6 NPK formulas applied in the planting furrows. The rates of both NPK formulas were calculated to reach P2O5 rates of 210, 420, and 630 kg ha-1. At each P2O5 rate, the 6-30-6 formula resulted in less 30% N and 65% K2O in the planting furrow compared to 4-14-8 formula. A randomized complete block design in a factorial scheme (2×3)+1, including an unfertilized furrow control, with three replications was used. Only the use of 6-30-6 formula increased the total tuber yield of ‘Atlantic’ potato. The marketable tuber yield reached higher levels (29.8 t ha-1) with higher P2O5 rate (440 kg ha-1) using the 6-30-6 than 4-14-8 formula. The fertilizer rates and formulas NPK did not affect specific gravity of marketable tubers. Therefore, the use of a fertilizer more concentrated in P2O5 that favors smaller contributions of N and K (as the 6-30-6 formula studied in this work) provides lower costs, and greater operational efficiency and profits in relation to the 4-14-8 formula traditionally used for the potato crop.

scholarly journals Evaluation of Potato Genotypes for Plant and YieldCharactersin Field at Dailekh

2021 ◽  
Vol 19 (2) ◽  
pp. 16-24
Author(s):  
Binod Prasad Luitel ◽  
Bishnu Bahadur Bhandari ◽  
Bihani Thapa
Keyword(s):  
Tuber Yield ◽  
Block Design ◽  
Research Station ◽  
Spring Season ◽  
Marketable Yield ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
The Mean ◽  
On Farm ◽  
Eye Depth

A field experiment was conducted at Horticulture Research Station (HRS), Dailekh, in Mid-Western hills of Nepal during 2019 and 2020, to evaluate the performance of ten potato genotypes for plant, and tuber yield characters. The potato genotypes were evaluated during spring season in a randomized complete block design with three replications. The genotypes showed highly significant difference for all the traits except tuber emergence. The mean squares for the year were also significant for all the traits except tuber emergence, stem numberplant -1 and total tuber yield. The interaction between genotypes and years did not show significant differences in all the traits except stem numberplant -1. Genotype CIP392797.22 produced more marketable yield (27.5 tha -1) and total tuber yield (30.2tha -1) than all other genotypes. The genotype CIP392797.22 is characterized as medium maturing, oval-shaped and dark red-skinned one with shallow eye depth in the tuber, and it imparted 13.2% higher marketable yield than Kufri Jyoti (24.3 tha -1). Thus, the genotype CIP392797.22 is recommended to evaluate on-farm for the verification and up-scaling among farmers at Mid-Western Nepal.

scholarly journals Efficacy of commercial insecticides for cowpea pod borer (Maruca vitrata F.) management in Pokhara, Nepal

2021 ◽  
Vol 4 (1) ◽  
pp. 165-175
Author(s):  
Lok Nath Aryal ◽  
Rajendra Regmi ◽  
Santosh Lohani ◽  
Yubaraj Bhusal
Keyword(s):  
Field Experiments ◽  
Block Design ◽  
Insect Pest ◽  
Grain Legume ◽  
Cost Ratio ◽  
Research Station ◽  
Emamectin Benzoate ◽  
Benefit Cost Ratio ◽  
Randomized Block Design ◽  
Pod Borer

Cowpea (Vigna unguiculata Walp.) is a major grain legume used as vegetables and pulses. Among the several insect pest of cowpea, spotted pod borer is one of the most destructive pest. To evaluate the available chemical pesticides for pod borer management, a set of field experiments on cowpea variety Malepatan-1 were conducted at Horticulture Research Station, Malepatan, Pokhara in years 2019 and 2020. The experiments were laid out in Completely Randomized Block Design (RCBD) having seven  treatments viz.Flubendiamide 39.35 % SC @ 0.3 mL/L, Chlorantraniliprole 18.5 % SC @ 0.2 mL/L, Emamectin benzoate 5 % SG @0.3 g/L, Spinosad 45 % SC @0.3 mL/L, Bacillus thuringiensis Kurstaki @2g/L, Azadirechtin 0.03%@ 5mL/L and Control with four replications. Flubendiamide 39.35 % SC @ 0.3 mL/L and Emamectin benzoate 5 % SG @0.3 g/L were found the most effective insecticides in lowering cowpea flower and pod damage with highest benefit cost ratio; however, considering environment, Chlorantraniliprole 18.5 % SC @ 0.2 mL/L and Spinosad 45 % SC @0.3 mL/L being next effective treatments could be viable option to manage spotted pod borer in cowpea production.   

scholarly journals Effect of Weed Management Practices on Economics of Groundnut in Coastal Zone of Karnataka

2020 ◽  
pp. 23-28
Author(s):  
Kunal Narwal ◽  
B. S. Yenagi
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Agricultural Research ◽  
Block Design ◽  
Cost Ratio ◽  
Research Station ◽  
Benefit Cost Ratio ◽  
Randomized Complete Block Design ◽  
Hand Weeding ◽  
Benefit Cost

Aims: To assess efficacy and economic viablity of herbicides on weed management in groundnut under groundnut during rabi-summer season. Study Design: The experiment was laid out in randomized complete block design with three replications. Place and Duration of Study: The field experiment was conducted at Agricultural Research Station, Kumta, Uttar Kannada, University of Agricultural Sciences, Dharwad (Karnataka) during rabi 2016-2017. Methodology: The experiment comprised nine treatments are as follows. T1: Unweeded check, T2: Weed free check, T3: Two hand weeding (At 20 and 40 DAS), T4: pendimethalin 30% E.C. @ 1.5 kg ha-1 (PE) fb one hand weeding at 25 DAS, T5: oxyfluorfen 23.5% E.C. @ 200 g ha-1(PE) fb one hand weeding at 25 DAS, T6: pendimethalin 30% E.C. @ 1.5 kg ha-1 (PE)  fb quizalofop-p-ethyl 5% E.C. @ 50 g ha-1 20-30 DAS (POE), T7: pendimethalin 30% E.C. @ 1.5 kg ha-1 (PE) fb imazethapyr 10% S.L.  @ 75 g ha-1 20- 30 DAS (POE), T8: pendimethalin 30% E.C. @ 1.5 kg ha-1 (PE) fb oxyfluorfen 23.5% E.C. @ 100 g ha-1 at 20-30 DAS (POE), T9: pendimethalin 30% E.C. @ 1.0 kg ha-1 (PE) fb one hand weeding at 25 DAS. Results: Among the weed management practices revealed that, higher cost of cultivation ( 53,340 ha-1) under weed free check and pod yield (2255 kg ha-1), gross return ( 92,446 ha-1), net return ( 45,239 ha-1) and benefit cost ratio (1.96) with pre-emergence application of pendimethalin 30% E.C. @ 1.5 kg ha-1 followed by one hand weeding at 25 DAS.

scholarly journals Economic feasibility of intercropping of chili with sweet gourd

2016 ◽  
Vol 5 (2) ◽  
pp. 64-69
Author(s):  
J Hossain ◽  
MS Alom ◽  
MAK Mian ◽  
MR Islam
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin ◽  
Benefit Cost Ratio ◽  
Suitable Combination ◽  
Benefit Cost ◽  
Equivalent Yield

A field experiment was conducted at Regional Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Ishurdi, Pabna during two consecutive years of 2012-2013 and 2013-2014 to find out the suitable combination of intercropping of chili with sweet gourd for increasing the productivity and economic return. The treatments were T1=100% sweet gourd (2m x 2m) + 40% chili (50cm x 100cm) + 100% recommended fertilizer (RF) of chili, T2=100% sweet gourd (2m x 2m) + 40% chili (50cm x 100cm) + 75% RF of chili, T3=100% sweet gourd (2m x 2m) + 40% chili (50cm x 100cm) + 50% RF of chili, T4=100% sweet gourd (2m x 2m) + 50% chili (50cm x 80cm) + 100% RF of chili, T5=100% sweet gourd (2m x 2m) + 50% chili (50cm x 80cm) + 75% RF of chili, T6=100% sweet gourd (2m x 2m) + 50% chili (50cm x 80cm) + 50% RF of chili, T7=Sole sweet gourd, T8= Sole chili. The experiment was laid out in a randomized complete block design with three replications. Fruit yield was calculated for sweet gourd and chili in ton per hectare considering the whole plot as harvested area. Results revealed that the yield of both sweet gourd and chili significantly affected by plant population and fertilizer dose in the intercropping systems. The highest equivalent yield of sweet gourd (21.21 t ha-1), land equivalent ratio (1.59), gross return (Tk. 318150.00 ha-1), gross margin (Tk. 237935.00 ha-1) and benefit cost ratio (3.97) were obtained from 100% sweet gourd (2m x 2m) + 50% chili (50cm x 80cm) + 100% RF of chili (T4). Sole crop of chili (T8) gave the lowest equivalent yield of sweet gourd (7.38 t ha-1), gross return (Tk. 110700.00 ha-1), gross margin (Tk. 37455.00 ha-1) and benefit cost ratio (1.51). Therefore, sweet gourd (100%) and chili (50%) with recommended fertilizer (100%) of chili might be economically profitable for chili with sweet gourd intercropping system.Int. J. Agril. Res. Innov. & Tech. 5 (2): 64-69, December, 2015

scholarly journals Economic Management of Late Blight (Phytophthora infestans L.) of Potato in Eastern Tarai of Nepal

1970 ◽  
Vol 6 ◽  
pp. 57-61 ◽  
Author(s):  
Prem CP Chaurasia
Keyword(s):  
Late Blight ◽  
Disease Severity ◽  
Field Experiments ◽  
Tuber Yield ◽  
Block Design ◽  
Winter Season ◽  
Cost Ratio ◽  
Research Station ◽  
Terminal Disease ◽  
Progress Curve

Field experiments were carried out at Regional Agriculture Research Station, Tarahara in threeconsecutive years (1997-2000) during winter season to know the economic sprays of differentfungicides to manage late blight disease of potato. Late blight susceptible cultivar of potatoKufri Sindhuri was used for the experiment. Krinoxyl gold (metalaxyl 8% and mancozeb 64%)at the rate of 1.5 g/l, Dithane M- 45 (mancozeb 75%) @ 0.3% and Bordeaux mixture @ 10 gcopper sulfate and 10 g lime/l of water and their different combinations were tested inrandomized complete block design with three replications. Terminal disease severity was thehighest (7.9) on 0-9 scale disease rating in unsprayed check and it was significantly higher thanthose of other fungicides sprays. Plots with three sprays of Dithane M- 45 @ 0.3% recorded thelowest (2.4) terminal disease severity. Disease development was the fastest in the unsprayed plotcompared to all other treatments. Similarly apparent infection rate was the highest in unsprayedtreatment. Area Under the Disease Progress Curve was also the highest in unsprayed plot and itwas significantly higher than those of other treatments. Tuber yield was the lowest (3.93 kg/4.5m2 plot in unsprayed and the highest (6.08 kg), in the plot receiving four sprays of Dithane M-45@ 0.3 % and this was at par with the tuber yield of plots receiving two and three sprays ofDithane M-45. Benefit cost ratio was the highest (1.54) in case of two sprays of Dithane M-45@ 0.3% at 10 days intervals. All others fungicide spays were uneconomical under Eastern Taraicondition.Key words: Eastern Tarai; economic spray; Dithane M-45; late blight management; potatoDOI: 10.3126/narj.v6i0.3365Nepal Agriculture Research Journal Vol.6 2005 pp.57-61

scholarly journals Effect of split application of potassium on yield and yield attributes of Soybean [Glycine max (L.) Merrill]

2019 ◽  
Author(s):  
Seema Sharma ◽  
Amit Kaul ◽  
Mandeep Singh
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Cost Ratio ◽  
Research Station ◽  
Split Application ◽  
Yield Attributes ◽  
Benefit Cost Ratio ◽  
Randomized Complete Block Design ◽  
Glycine Max L ◽  
Benefit Cost

A field experiment was conducted at Punjab Agricultural University, Regional Research Station, Gurdaspur (Punjab) during kharif 2016-17, to study the effect of split application of potassium on yield and yield attributes of soybean. The experiment was conducted in randomized complete block design with seven treatments applied at sowing and as split application of potassiumT1: Recommended fertilizer dose (12.5 kg N, 32 kg P2O5and no potassium application) , T2: 15 kg K2O ha-1(at sowing), T3: 30 kg K2O ha-1(at sowing), T4:60 kg K2O ha-1(at sowing), T5: 7.5 kg K2O ha-1 (at sowing) + 7.5 kg K2O ha-1 (at flowering), T6: 15 kg K2O ha-1(at sowing) +15 kg K2O ha-1(at flowering), T7: 30 kg K2O ha-1(at sowing) +30 kg K2O ha-1(at flowering). Results revealed that significantly higher grain yield (25.2 q ha-1) was obtained in T7 (30 kg K2O ha-1 (at sowing) + 30 kg K2O ha-1 (at flowering) as compared to all other treatments but it was statistically at par with the split application of potassium @ 15 kg K2O ha-1 (at sowing) + 15 kg K2O ha-1 (at flowering) (T6) with grain yield of (22.6 q ha-1). Split application of potassium significantly increased soybean grain yield over the basal application with highest benefit cost ratio (7.1). Among the split application of potassium, grain yield of soybean was increased significantly by 15.6 % in T7 treatment over T5. Split application of potassium was more beneficial than applying full dose of potassium at the time of sowing due to higher number of pods and pod weight plant-1.

scholarly journals Production potential of different varieties of hybrid maize (Zea mays L.) with groundnut (Arachis hypogaea L.) under intercropping system

1970 ◽  
Vol 35 (1) ◽  
pp. 51-64
Author(s):  
MS Alom ◽  
NK Paul ◽  
MA Quayyum
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Cost Ratio ◽  
Research Station ◽  
Production Potential ◽  
Area Index ◽  
Benefit Cost Ratio ◽  
Planting Methods ◽  
Maize Varieties ◽  
Hybrid Maize

The experiment was carried out at the Regional Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Jessore to evaluate the performance of different varieties of hybrid maize under intercropping systems with groundnut in Rabi seasons for higher productivity and profitability. Four sole crops of hybrid maize varieties viz., BHM-1, BHM-3, Pacific-11, and Pacific-984, one sole crop of groundnut (var. Jhingabadam) and eight intercropping systems of maize + groundnut under two planting methods viz., normal and paired row made 13 treatments, were used for two consecutive years (2004 and 2005). Treatments were arranged in a randomized complete block design with four replications. Among the intercropped treatments, four rows groundnut in between paired rows of hybrid maize var. Pacific 11 showed higher total dry mater (TDM), leaf area index (LAI), crop growth rate (CGR), gross return, net return and benefit cost ratio (BCR) than the other planting systems tested in the experiment. Keywords: Production potential; hybrid maize; groundnut; intercropping system. DOI: 10.3329/bjar.v35i1.5866Bangladesh J. Agril. Res. 35(1) : 51-64, March 2010

Response of Potato to Zinc Application in Eastern Indo-Gangetic Plains of India

2021 ◽  
Vol 8 (01) ◽  
Author(s):  
S K YADAV ◽  
R K SINGH ◽  
V K DUA ◽  
SARALA YADAV ◽  
S K SINGH ◽  
...  
Keyword(s):  
Plant Height ◽  
Significant Variation ◽  
Tuber Yield ◽  
Recommended Dose ◽  
Cost Ratio ◽  
Research Station ◽  
Higher Plant ◽  
Gangetic Plains ◽  
Significant Difference ◽  
Zinc Application

A field experiment was conducted during two consecutive years of 2015-16 and 2016-17 at Central Potato Research Station, Patna with objective to evaluate theresponse of zinc on potato tuber yield. Significant effect of zinc application was not noticed on plant emergence and plant height of crop at 30 days after planting. However, higher plant height was recorded in the plot which received the zinc as compare to without zinc application. Significant difference in plant height was observed at later stages of crop due to application of zinc at the rate of 6.0 kg/ha along with recommended dose of fertilizers. Similarly, dry matter yield of potato tubers was also recorded consequently higher due to application of higher doses of zinc. Tuber grades of 0-25g and 25-50g were found non-significant irrespective of doses of zinc application in potato. Significant variation in medium and large size tuber yield were recorded due to application of zinc @ 6 kg/ha over without zinc application. About 18.1% increase in marketable tuber yield of potato was found due to application of zinc @ 6.0 kg/ha as compare to without zinc application. About11.3% and 13.7% increase in the total tuber yield of potato was observed due to application of zinc @ 4.5 and 6.0 kg/ha, respectively over without zinc application. However, no significant variation in pooled yield was found with application of zinc up to 3.0 kg/ha over without zinc application. The highest net return (Rs. 36.0×103/ha) and net benefit cost ratio (2.52) was recorded due to application of zinc @ 6.0 kg/ha as compare to without zinc. Application of zinc @ 6.0 kg/ha along with recommended dose of NPK may be found more beneficial for potato cultivation under Eastern Indo-Gangetic plains of India.

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