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Author S. Aryal |
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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 : Chemical pesticide application: An impending threat to soil-health maintenance Material Type: printed text Authors: Paneru, R.B., Author ; S. Aryal, Author ; Y.P. Giri, Author Pagination: 447-457 p. Languages : English (eng) Keywords: Pesticide, soil, microflora, toxic, residues, biodegradable, micro organisms, ecosystem. Abstract: The use of chemical pesticides has become a common practice to manage pest problems in commercial farming in Nepal. The chemical pesticides are becoming popular because of their quick knock-down effect on targeted pests and its easy availability in the market. They are generally applied in the form of foliar sprays as well as directly to the soil. Due to such application of pesticides leave considerable quantities of pesticides and their degraded products accumulated in the soil ecosystem. The soil needs to be healthy and productive to produce more food. Chemical pesticides cause harmful effect to soil microbials, soil respiration and soil fertility……………..
Link for e-copy: http://elibrary.narc.gov.np/?r=2275 Chemical pesticide application: An impending threat to soil-health maintenance [printed text] / Paneru, R.B., Author ; S. Aryal, Author ; Y.P. Giri, Author . - [s.d.] . - 447-457 p.
in Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Krishna B. Karki
Languages : English (eng)
Keywords: Pesticide, soil, microflora, toxic, residues, biodegradable, micro organisms, ecosystem. Abstract: The use of chemical pesticides has become a common practice to manage pest problems in commercial farming in Nepal. The chemical pesticides are becoming popular because of their quick knock-down effect on targeted pests and its easy availability in the market. They are generally applied in the form of foliar sprays as well as directly to the soil. Due to such application of pesticides leave considerable quantities of pesticides and their degraded products accumulated in the soil ecosystem. The soil needs to be healthy and productive to produce more food. Chemical pesticides cause harmful effect to soil microbials, soil respiration and soil fertility……………..
Link for e-copy: http://elibrary.narc.gov.np/?r=2275 E-copies
http://nkcs.org.np/narc/dl/?r=2275URL
in Summer crops research in Nepal: Proceedings of the 25th Summer Crops Workshop held at Kathmandu 21-23 June 2007 / Adhikari, N.P.
Title : Effect of different fertilizers in reducing methane gas (Ch4) emission from rice fields Material Type: printed text Authors: G Malla, Editor ; S. Aryal, Author ; A. Sharma, Author ; Y.G Dr. Khadka, Author ; K.K Sherchand, Author Publication Date: 2010 Pagination: 460-464 p. Keywords: Global warming ; methane emission rice Abstract: Methane is the second most important "greenhouse gas "contributing 15% role in global warming. Effects of seven treatments i.e. Control,
100:30:30 NPK kglha, 50:0:0 + 15 em stubble, FYM 10 tonlha, Soybean 15 days old (GM), 100:30:30 NPKkglha +nitrification inhibitor 10% neem oil (Azadimchta melia) and 100:30:30 NPK kglha +ammonium sulfate (instead of urea) from LTFf (Soil Science Division) was observed at Khumaltar. The experiment was carried out in RCBD design with four replications. The closed chamber technique was used for samples collection and analyzed in Flame Ionization Detector (FID) in the Gas Chromatography (GC). Flux was ranged from 7.14 to 49.03 kglha. /rice growing period in control and 50%N + 15 em stubble respectively. Reduction in CH4 emissions in treatments neem oil and ammonium sulfate were 33.2% and 15% respectively. Application ofFYM and stubble increased CH4 emissions by 2.3% and 46.7% respectively. Higher yield 5.31 ton /ha was in the T 12 (NH4)2 S04 treated plots and lower 3.35 tonlha was in the control plot Global warming potential was found lower in soybean, neem oil and (NH4) 2 S04 and higher in stubble, FYM, suggesting that soybean, neem oil and sulfate fertilizer can be used for reducing CH4 from rice fields. Therefore, use of such materials should be encouraged. A monitoring system for greenhouse emission is a must for reducing global warming.
Link for e-copy: http://elibrary.narc.gov.np/?r=1052 Effect of different fertilizers in reducing methane gas (Ch4) emission from rice fields [printed text] / G Malla, Editor ; S. Aryal, Author ; A. Sharma, Author ; Y.G Dr. Khadka, Author ; K.K Sherchand, Author . - 2010 . - 460-464 p.
in Summer crops research in Nepal: Proceedings of the 25th Summer Crops Workshop held at Kathmandu 21-23 June 2007 / Adhikari, N.P.
Keywords: Global warming ; methane emission rice Abstract: Methane is the second most important "greenhouse gas "contributing 15% role in global warming. Effects of seven treatments i.e. Control,
100:30:30 NPK kglha, 50:0:0 + 15 em stubble, FYM 10 tonlha, Soybean 15 days old (GM), 100:30:30 NPKkglha +nitrification inhibitor 10% neem oil (Azadimchta melia) and 100:30:30 NPK kglha +ammonium sulfate (instead of urea) from LTFf (Soil Science Division) was observed at Khumaltar. The experiment was carried out in RCBD design with four replications. The closed chamber technique was used for samples collection and analyzed in Flame Ionization Detector (FID) in the Gas Chromatography (GC). Flux was ranged from 7.14 to 49.03 kglha. /rice growing period in control and 50%N + 15 em stubble respectively. Reduction in CH4 emissions in treatments neem oil and ammonium sulfate were 33.2% and 15% respectively. Application ofFYM and stubble increased CH4 emissions by 2.3% and 46.7% respectively. Higher yield 5.31 ton /ha was in the T 12 (NH4)2 S04 treated plots and lower 3.35 tonlha was in the control plot Global warming potential was found lower in soybean, neem oil and (NH4) 2 S04 and higher in stubble, FYM, suggesting that soybean, neem oil and sulfate fertilizer can be used for reducing CH4 from rice fields. Therefore, use of such materials should be encouraged. A monitoring system for greenhouse emission is a must for reducing global warming.
Link for e-copy: http://elibrary.narc.gov.np/?r=1052 E-copies
http://nkcs.org.np/narc/dl/?r=1052URLEvaluation of Bio-Pesticides Against Tomato Fruit Worm, Helicoverpa Armigera Hubner, on Tomato at Khumaltar / Paneru, R.B. ; S. Aryal
Title : Evaluation of Bio-Pesticides Against Tomato Fruit Worm, Helicoverpa Armigera Hubner, on Tomato at Khumaltar Material Type: printed text Authors: Paneru, R.B., Author ; S. Aryal, Author Pagination: 391-397 p. Languages : English (eng) Keywords: bio pesticides, environment, human health, tomato fruit worm. Abstract: Tomato production has become risky in Nepal with the potential for significant losses due to
insects. Tomato fruit worm H. armigera is the major problematic insects of tomato and has
been considered as the national priority entomological research problem of Nepal. Farmers
in general have been using chemical insecticides as prophylactic spray at higher doses to
manage this insect. It is reported that a serious unrecoverable problem is arising due to
misuse and overuse of chemical insecticides. Bio-pesticides namely Bacillus tlmringiensis K.,
Nuclear Polyhedrosis Virus-helicide (NPV-He) and Bio-multi-neem are commercially
available bio-pesticides impmted from India and already recommended for the management
of insect pests in Nepal. A srudy was carried out to evaluate the potential efficacy of abovementioned
bio-pesticides at recommended dose and double than recommended dose against
H. am1igera on tomato crops under natural epiphytotic condition for two years (2000/2001
and 2001102) in NARC, Khumaltar complex. Based on the parameters like, quantity of
marketable tomato fruit yield and %fruits bored by H. armigera, the treatment Bacillus
thuringiensis K. @ 3 g per litre of water - the dose double of recommended, was found
superior to other treatments. Minimum number of fruits was bored by the H. armigera in the
plants sprayed with chemical pesticides (Thiodane 35 EC @ 1.5 ml per litre water) but the
number of fruits rotten was higher than that of fruits treated with B. t. treatmeflls. While
considering the possible several negative side effects of chemical pesticides on human health
and environments, this study suggests that the application of B.t. @ 3 g per liter water will
be the most desirable technique for the management of H. armigera in such a directly
consumable tomato fruits.Link for e-copy: http://elibrary.narc.gov.np/?r=675 Evaluation of Bio-Pesticides Against Tomato Fruit Worm, Helicoverpa Armigera Hubner, on Tomato at Khumaltar [printed text] / Paneru, R.B., Author ; S. Aryal, Author . - [s.d.] . - 391-397 p.
Languages : English (eng)
Keywords: bio pesticides, environment, human health, tomato fruit worm. Abstract: Tomato production has become risky in Nepal with the potential for significant losses due to
insects. Tomato fruit worm H. armigera is the major problematic insects of tomato and has
been considered as the national priority entomological research problem of Nepal. Farmers
in general have been using chemical insecticides as prophylactic spray at higher doses to
manage this insect. It is reported that a serious unrecoverable problem is arising due to
misuse and overuse of chemical insecticides. Bio-pesticides namely Bacillus tlmringiensis K.,
Nuclear Polyhedrosis Virus-helicide (NPV-He) and Bio-multi-neem are commercially
available bio-pesticides impmted from India and already recommended for the management
of insect pests in Nepal. A srudy was carried out to evaluate the potential efficacy of abovementioned
bio-pesticides at recommended dose and double than recommended dose against
H. am1igera on tomato crops under natural epiphytotic condition for two years (2000/2001
and 2001102) in NARC, Khumaltar complex. Based on the parameters like, quantity of
marketable tomato fruit yield and %fruits bored by H. armigera, the treatment Bacillus
thuringiensis K. @ 3 g per litre of water - the dose double of recommended, was found
superior to other treatments. Minimum number of fruits was bored by the H. armigera in the
plants sprayed with chemical pesticides (Thiodane 35 EC @ 1.5 ml per litre water) but the
number of fruits rotten was higher than that of fruits treated with B. t. treatmeflls. While
considering the possible several negative side effects of chemical pesticides on human health
and environments, this study suggests that the application of B.t. @ 3 g per liter water will
be the most desirable technique for the management of H. armigera in such a directly
consumable tomato fruits.Link for e-copy: http://elibrary.narc.gov.np/?r=675 E-copies
http://nkcs.org.np/narc/dl/?r=675URL
in Proceedings of the 11th National Outreach Workshop 9-10 June 2014 (26-27 Jestha 2071), held at Regional Agricultural Research Station, Lumle, Kaski / Deepak Bhandari
Title : Management of armyworm outbreak in rice: a case from Chitwan district Material Type: printed text Authors: R P Mainali, Author ; S. Aryal, Author ; N. Dangi, Author ; G.S Bhandari, Author ; Ansari, A.R., Author Pagination: 56-59 p. Languages : English (eng) Link for e-copy: http://elibrary.narc.gov.np/?r=2507 Management of armyworm outbreak in rice: a case from Chitwan district [printed text] / R P Mainali, Author ; S. Aryal, Author ; N. Dangi, Author ; G.S Bhandari, Author ; Ansari, A.R., Author . - [s.d.] . - 56-59 p.
in Proceedings of the 11th National Outreach Workshop 9-10 June 2014 (26-27 Jestha 2071), held at Regional Agricultural Research Station, Lumle, Kaski / Deepak Bhandari
Languages : English (eng)
Link for e-copy: http://elibrary.narc.gov.np/?r=2507 E-copies
http://nkcs.org.np/narc/dl/?r=2507URL
in Proceedings of the 5th National Outreach Research Workshop held at NARC, Lalitpur, 30-31 May 2000 / Joshi, Madhav
Title : On-farm evaluation of crop genotypes at the outreach sites of ARS Rampur Material Type: printed text Authors: Binaya K. Batsa, Author ; D.Sharma, Author ; Chaudhary, I.B., Author ; S. Aryal, Author ; G Hamal, Author ; A. Aryal, Author ; T. Ghimire, Author Pagination: 133-150 p. Languages : English (eng) On-farm evaluation of crop genotypes at the outreach sites of ARS Rampur [printed text] / Binaya K. Batsa, Author ; D.Sharma, Author ; Chaudhary, I.B., Author ; S. Aryal, Author ; G Hamal, Author ; A. Aryal, Author ; T. Ghimire, Author . - [s.d.] . - 133-150 p.
in Proceedings of the 5th National Outreach Research Workshop held at NARC, Lalitpur, 30-31 May 2000 / Joshi, Madhav
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