139 result(s) search for keyword(s) 'yield'    

Yield Loss and Economic Threshold Level of Soybean due to Leaf Roller (Apoderus Cyaneus Hope) in Nepal / Gyawali, Bishnu K. in Nepal Agriculture Research Journal, Vol. 6 (2005)  

Public ISBD [article]  inNepal Agriculture Research Journal > Vol. 6 (2005) . - 73-77 p Title : Yield Loss and Economic Threshold Level of Soybean due to Leaf Roller (Apoderus Cyaneus Hope) in Nepal Material Type: printed text Authors: Gyawali, Bishnu K., Author Publication Date: 2005 Article on page: 73-77 p Languages : English (eng) Keywords: Economic  threshold  level,  leaf  roller,  physiological  growth  stages,  yield  loss Abstract: Yield loss in soybean due to leaf roller (Apoderus cyaneus Hope) was studied at Khumaltar during 1985 and 1986 seasons. Field experiments were conducted during vegetative as well as reproductive stages of soybean. Rolled leaves of soybean with eggs, grubs and pupae were collected from the field and reared in the laboratory for adults. Adults were introduced into nylon cages installed at the central rows of each plot just after germination of soybean. Insects were maintained at population density of 25, 50 and 100 per m2. At maximum (100) adult density, the potential grain yield loss of cultivar, Ransom soybean in its vegetative and reproductive stages were 103 and 48 mg per day respectively from each adult of A. cyaneus. Percentages of yield losses were 36.2, 45.2, and 58.0 during vegetative and 37.5, 48.5 and 66.0 during reproductive stages from the insect population of 25, 50 and 100, respectively which, was not in accordance with the level of two and four fold increased population density of insect. Yield reduction was higher (260 and 108 mg per day) from each adult beetle at lower population level (25) in both vegetative and reproductive stages of soybean. Link for e-copy: http://elibrary.narc.gov.np/?r=64 [article] Yield Loss and Economic Threshold Level of Soybean due to Leaf Roller (Apoderus Cyaneus Hope) in Nepal [printed text] / Gyawali, Bishnu K., Author . - 2005 . - 73-77 p. Languages : English (eng) in Nepal Agriculture Research Journal > Vol. 6 (2005) . - 73-77 p Keywords: Economic  threshold  level,  leaf  roller,  physiological  growth  stages,  yield  loss Abstract: Yield loss in soybean due to leaf roller (Apoderus cyaneus Hope) was studied at Khumaltar during 1985 and 1986 seasons. Field experiments were conducted during vegetative as well as reproductive stages of soybean. Rolled leaves of soybean with eggs, grubs and pupae were collected from the field and reared in the laboratory for adults. Adults were introduced into nylon cages installed at the central rows of each plot just after germination of soybean. Insects were maintained at population density of 25, 50 and 100 per m2. At maximum (100) adult density, the potential grain yield loss of cultivar, Ransom soybean in its vegetative and reproductive stages were 103 and 48 mg per day respectively from each adult of A. cyaneus. Percentages of yield losses were 36.2, 45.2, and 58.0 during vegetative and 37.5, 48.5 and 66.0 during reproductive stages from the insect population of 25, 50 and 100, respectively which, was not in accordance with the level of two and four fold increased population density of insect. Yield reduction was higher (260 and 108 mg per day) from each adult beetle at lower population level (25) in both vegetative and reproductive stages of soybean. Link for e-copy: http://elibrary.narc.gov.np/?r=64

Yield gap analysis in rice production / Shrivastava, A.C.    

Public ISBD in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.     Title : Yield gap analysis in rice production Material Type: printed text Authors: Shrivastava, A.C. ; J.B Sah, Author ; G.C Thakur, Author Pagination: 257-265 p. Languages : English (eng) Keywords: Yield  gap  ;  command  area Abstract: Different types of experiment on rice crop were carried out during 20581059 and 20591060. The trials were conducted at RARS Parwanipur and simultaneously on farm experiments were conducted in the farmers field with the participation of farmers at different outreach research sits of command districts. Varietal testing, effect of legume on rice yield in rice wheat system: different fertility managed trials on yield. In case of Aromatic rice cultivars were tested including one fine non aromatic rice Pusa 834. Highest mean grain was observed !Jy CNTLR 85033 ((4428 kg!ha). While varietal trials of normal rice for irrigated conditions. BR 4684 ranked first at all locations follawed by released popular cultivars Sabitri (4940 kg/ha and 4600 kg!ha). Highest mean grain yield was observed where Zinc Sulphate was applied as basal dose with recommended dose of chemical fertilizer follawed by recommended dose with butachlor (4130 kg/ha and 3950 kg/ha) respectively. Significant difference in rice yield was obtained where lentil was planted in comparison to mustard n rice based pattern. Front line on farm trials indicated the possibility of high yield with improved package of practices. The result of different types of experiments indicated the potential possibility of higher rice. It can be concluded by observing the results of different types of researcher managed trial conducted at on station, on farm and farmers managed trial. While using popular short duration varieties BG /442, the mean rice yield obtained was 4699 kg!ha, while the mean yield of farmers managed trial was 4075 kg!ha Side by side incase of normal duration rice, Sabitri produced 5500 kg/ha in research managed trial. FMT produced 4370 kg!ha was produced by farmers managed trial. Yield was increased significantly when ZnSo4 was applied with basal dose of chemical ftrtilizer. No significant yield difference was observed between basal application and foliar application of zinc sulphate and chilated zinc respectively. Yield gap between the trials conducted at on station and on farm ORR sites indicated the need of correcting soil health status of e."Cperimenta/ plots of research station by introducing legume. Low yield may also be the effect of environmental condition which differed between research station and ORR sites, while yield difference between outreach research managed trial and farmers managed trials at ORR sites indicated the socioeconomic conditions of farming community which prevented them to use recommended dose of inputs at higher cost. Side by side unawareness about application of technology at proper time and proper method in rice cultivation. Link for e-copy: http://elibrary.narc.gov.np/?r=1111 in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.     Yield gap analysis in rice production [printed text] / Shrivastava, A.C. ; J.B Sah, Author ; G.C Thakur, Author . - [s.d.] . - 257-265 p. Languages : English (eng) Keywords: Yield  gap  ;  command  area Abstract: Different types of experiment on rice crop were carried out during 20581059 and 20591060. The trials were conducted at RARS Parwanipur and simultaneously on farm experiments were conducted in the farmers field with the participation of farmers at different outreach research sits of command districts. Varietal testing, effect of legume on rice yield in rice wheat system: different fertility managed trials on yield. In case of Aromatic rice cultivars were tested including one fine non aromatic rice Pusa 834. Highest mean grain was observed !Jy CNTLR 85033 ((4428 kg!ha). While varietal trials of normal rice for irrigated conditions. BR 4684 ranked first at all locations follawed by released popular cultivars Sabitri (4940 kg/ha and 4600 kg!ha). Highest mean grain yield was observed where Zinc Sulphate was applied as basal dose with recommended dose of chemical fertilizer follawed by recommended dose with butachlor (4130 kg/ha and 3950 kg/ha) respectively. Significant difference in rice yield was obtained where lentil was planted in comparison to mustard n rice based pattern. Front line on farm trials indicated the possibility of high yield with improved package of practices. The result of different types of experiments indicated the potential possibility of higher rice. It can be concluded by observing the results of different types of researcher managed trial conducted at on station, on farm and farmers managed trial. While using popular short duration varieties BG /442, the mean rice yield obtained was 4699 kg!ha, while the mean yield of farmers managed trial was 4075 kg!ha Side by side incase of normal duration rice, Sabitri produced 5500 kg/ha in research managed trial. FMT produced 4370 kg!ha was produced by farmers managed trial. Yield was increased significantly when ZnSo4 was applied with basal dose of chemical ftrtilizer. No significant yield difference was observed between basal application and foliar application of zinc sulphate and chilated zinc respectively. Yield gap between the trials conducted at on station and on farm ORR sites indicated the need of correcting soil health status of e."Cperimenta/ plots of research station by introducing legume. Low yield may also be the effect of environmental condition which differed between research station and ORR sites, while yield difference between outreach research managed trial and farmers managed trials at ORR sites indicated the socioeconomic conditions of farming community which prevented them to use recommended dose of inputs at higher cost. Side by side unawareness about application of technology at proper time and proper method in rice cultivation. Link for e-copy: http://elibrary.narc.gov.np/?r=1111

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Yield Interactions of Wheat Genotypes to Dates of Seeding in Eastern Mid Hills of Nepal / Rudra Bhattarai in Journal of Nepal Agricultural Research Council, Vol.1 (August 2015)  

Public ISBD [article]  inJournal of Nepal Agricultural Research Council > Vol.1 (August 2015) . - 33-36p. Title : Yield Interactions of Wheat Genotypes to Dates of Seeding in Eastern Mid Hills of Nepal Material Type: printed text Authors: Rudra Bhattarai, Author ; Bedanand Chaudhary, Author ; Dhurba Bahadur Thapa, Author Publication Date: 2015 Article on page: 33-36p. Languages : English (eng) Keywords: Genotypes,  Planting  date,  Wheat  yield Abstract: Wheat (Triticum aestivum L.) is one of the major cereal crops and staple food sources in Nepal. Wheat varieties being popular in mid hill regions are still in the early stages of adoption. Identification of appropriate date of seeding plays important role in enhancing the adoption rate ensuring the sustainable production. Therefore, three dates viz 15th November, 1st and 15th December for seeding and twenty eight wheat genotypes were evaluated in a split plot design with two replications for two consecutive seasons in 2011/12 and 2012/13 at an altitude of 2200 masl of eastern Nepal. The results showed genetic differences and interaction effect of genotypes with the dates of sowing on grain yield, panicle length and effective tillers per square meter. The wheat sown on 1st December showed the highest yield as compared to other sown dates. Similarly, WK1907, WK1911, WK1803, WK1915, WK1909, WK1714 and WK1803 produced highest yield among the tested genotypes with retaining maximum number of effective tillers and posed suitable maturity across all sowing date. Link for e-copy: http://elibrary.narc.gov.np/?r=1323 [article] Yield Interactions of Wheat Genotypes to Dates of Seeding in Eastern Mid Hills of Nepal [printed text] / Rudra Bhattarai, Author ; Bedanand Chaudhary, Author ; Dhurba Bahadur Thapa, Author . - 2015 . - 33-36p. Languages : English (eng) in Journal of Nepal Agricultural Research Council > Vol.1 (August 2015) . - 33-36p. Keywords: Genotypes,  Planting  date,  Wheat  yield Abstract: Wheat (Triticum aestivum L.) is one of the major cereal crops and staple food sources in Nepal. Wheat varieties being popular in mid hill regions are still in the early stages of adoption. Identification of appropriate date of seeding plays important role in enhancing the adoption rate ensuring the sustainable production. Therefore, three dates viz 15th November, 1st and 15th December for seeding and twenty eight wheat genotypes were evaluated in a split plot design with two replications for two consecutive seasons in 2011/12 and 2012/13 at an altitude of 2200 masl of eastern Nepal. The results showed genetic differences and interaction effect of genotypes with the dates of sowing on grain yield, panicle length and effective tillers per square meter. The wheat sown on 1st December showed the highest yield as compared to other sown dates. Similarly, WK1907, WK1911, WK1803, WK1915, WK1909, WK1714 and WK1803 produced highest yield among the tested genotypes with retaining maximum number of effective tillers and posed suitable maturity across all sowing date. Link for e-copy: http://elibrary.narc.gov.np/?r=1323

Yield Perfomance Of Low Land Rice Varieties As Influenced By Age Of Seedlings And Nitrogen Level / Prasad, R.B.  

Public ISBD Title : Yield Perfomance Of Low Land Rice Varieties As Influenced By Age Of Seedlings And Nitrogen Level Material Type: printed text Authors: Prasad, R.B., Author Publisher: Philippines : Central Luzon State University Publication Date: 1991 Pagination: 128 p. Languages : English (eng) Keywords: seedlings;rice  varieties;soil  analysis;harvest  index  percentage;straw  yield Link for e-copy: http://elibrary.narc.gov.np/?r=3240 Yield Perfomance Of Low Land Rice Varieties As Influenced By Age Of Seedlings And Nitrogen Level [printed text] / Prasad, R.B., Author . - Philippines : Central Luzon State University, 1991 . - 128 p. Languages : English (eng) Keywords: seedlings;rice  varieties;soil  analysis;harvest  index  percentage;straw  yield Link for e-copy: http://elibrary.narc.gov.np/?r=3240

Copies (1)

Barcode	Call number	Media type	Location	Section	Status
896	PRA	Document	NARC Library	Documents	Available

Efficacy of fertilization levels and genotypes on the grain yield of Winter Maize (Zea mays L.) in the acidic soils of chitwan valley / B. H. Adhikary    

Public ISBD in Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Krishna B. Karki     Title : Efficacy of fertilization levels and genotypes on the grain yield of Winter Maize (Zea mays L.) in the acidic soils of chitwan valley Material Type: printed text Authors: B. H. Adhikary, Author ; B.R. Baral, Author ; Shrestha, J., Author ; R Adhikary, Author Pagination: 190-198 p. Languages : English (eng) Keywords: Fertilizer  and  manures,  grain  yield,  maize  genotypes,  yield  attributing  traits. Abstract: Maize crop is one of the heavy feeder of plant nutrients. Different varieties of maize (Zea mays L.) have different potentiality and requirements of plant nutrients. Hybrids require high dose of mineral fertilizers and manures as compared to those of open pollinated improved varieties (OPV) and the locals. In order to investigate the effects of different rates of fertilizers (nitrogen, phosphorus, potassic fertilizers) and farmyard manures on grain yield and yield attributing traits of different maize varieties, field experiments were conducted at the farm of National Maize Research Program, Rampur, Chitwan, Nepal during winter seasons of 2009/10 and 2010/011 employing randomized complete block design with three replications………………….. Link for e-copy: http://elibrary.narc.gov.np/?r=2104 in Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Krishna B. Karki     Efficacy of fertilization levels and genotypes on the grain yield of Winter Maize (Zea mays L.) in the acidic soils of chitwan valley [printed text] / B. H. Adhikary, Author ; B.R. Baral, Author ; Shrestha, J., Author ; R Adhikary, Author . - [s.d.] . - 190-198 p. Languages : English (eng) Keywords: Fertilizer  and  manures,  grain  yield,  maize  genotypes,  yield  attributing  traits. Abstract: Maize crop is one of the heavy feeder of plant nutrients. Different varieties of maize (Zea mays L.) have different potentiality and requirements of plant nutrients. Hybrids require high dose of mineral fertilizers and manures as compared to those of open pollinated improved varieties (OPV) and the locals. In order to investigate the effects of different rates of fertilizers (nitrogen, phosphorus, potassic fertilizers) and farmyard manures on grain yield and yield attributing traits of different maize varieties, field experiments were conducted at the farm of National Maize Research Program, Rampur, Chitwan, Nepal during winter seasons of 2009/10 and 2010/011 employing randomized complete block design with three replications………………….. Link for e-copy: http://elibrary.narc.gov.np/?r=2104

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Grain yield stability of Bread Wheat (Triticum aestivum L.) genotypes in different production environments of Nepal / N.R Gautam    

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Analysis of chlorophyll content and its correlation with yield attributing traits on early varieties of maize (Zea mays L.) / Bikal Ghimire in Journal of Maize Research and Development, Vol.1, No. 1 (December 2015)  

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Assessment of factors responsible for yield decline in Toria / T.B Ghimire    

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Assessment of major yield limiting factors of normal season rice and soil fertility research on rice under low hill intensive cropping systems / Subedi, K.D.

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Diagnosis of yield stagnation problem in rice in sunsari andmorang irrigation project area / Shrestha, H.K.    

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Effect of Alone or in Combination of Natural· and Synthetic Media of Nutrient · Supply· on the Yield of Cauliflower (Brasslca 0/eracea Var Botrytls) / Madhu S. Ghale    

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Effect of long-term organic-inorganic fertilization on rice yield and soil properties under rice-wheat system / Sah, M.P.    

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Effect of Nitrogen and Potassium on Yield, Storability and Post Harvest Processing Qualities of Potato for Chips / Gautam, I.P. in Nepal Agriculture Research Journal, Vol.11 (2011)  

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Effect of NPK on Vegetative Growth and Yield of Desiree and Kufri Sindhuri Potato / Adhikari, R.C. in Nepal Agriculture Research Journal, Vol. 9 (2009)  

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Effect of Pinching and Levels of Gibberellic Acid on Growth, Flowering and Yield of African Marigold (Tagetes erecta l.) / H. P. Pandey in Nepalese Horticulture, v. 10: 1 ([07/25/2015])

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EFFECT OF PLANTING DATE ON PHENOLOGY, YIELD COMPONENTS AND GRAIN YIELD OF DETERMINATE COWPEA VARIETIES IN THE LOW HILLS OF NEPAL / Dhital, B.K. in Nepal Agriculture Research Journal, Vol.2, No.1 (1998)  

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Effect pf sowing time on grain and straw yield at high altitude bari land / Shrestha, Meenu

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Effects of artificial leaf loss at different growth stages on yield and yield components of finger millet (Eleusine coracana) / Pradhanang, P.M.  

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Evaluation of Hybrid and OPV Maize Varieties for Grain Yield and Agronomic Attributes under Farmer's Field Conditions at Dukuchhap / Nepali, M.B. in Nepal Agriculture Research Journal, Vol. 9 (2009)  

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Genetics of yield components and quality traits in aromatic rice (oryza sativa L.) / Khatiwada, D.P.  

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Influence of Urea, Naa and Hand Defoliation on Yield Parameters of Winter Guava Cv. Allahabad Safeda Under Chitwan Condition / G. Bhattarai ; Shrestha, G.K.    

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On-farm comparison of improved maize variety Manakamana-3 with Local Thulo Seto for grain yield and agronomic attributes at Dukuchhap, Lalitpur, Nepal / Paudel, M.N. in Agronomy Journal of Nepal, Vol.1 (2010)  

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Response of summer legumes and non-legumes green manuring on winter maize yield / Mahato, R.K.    

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Stability Analysis Of Grain Yield,Its Components And Quality Parameters Of Bread Wheat(Triticum Aestivum L.)Genotypes Under rainfed And Late Sown Conditions / R.B Yadav  

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Study on the Effects of Vermicompost on the Nodulation and the Yield of Chickpea / Sanu K. Bajracharya in Nepal Agriculture Research Journal, Vol. 9 (2009)  

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