Climatic scenario in the three stations of Nepal agricultural research council representing different agro-ecological zones of Nepal / ,Shrestha, S.P.    

Public ISBD in Proceedings of the 23rd National Summer Crops Workshop on Maize Research and Production held NARC Khumaltar, Lalitpur, Nepal, July 2-4, 2002, / Adhikari, K.     Title : Climatic scenario in the three stations of Nepal agricultural research council representing different agro-ecological zones of Nepal Material Type: printed text Authors: ,Shrestha, S.P., Author ; K.K Sherchand, Author Pagination: 322-336 p. Languages : English (eng) Abstract: Agri~ulture i3 vulnerable to climate. It is weather dependent. Nepal has a wide variety of climates from subtropics in the south, warm and cool in the hills, to cold in the mountains, which determ'ines . overall biodiJ~ersity and agriculhtral development activities. This paper presents the climatic scenarios of three Agricultural Research Stations of Neap Agricultural Research Council representing terai, hill and mountain bidts. Bhairahawa at 109m as/ is the hottest among .the selected station with daily maximum temperature 36.44 °C on dry daYs and 33.61 °C on wet days during July and May respectively. The probably of wet days is higher on the month of July-August. And the total daily precipitation is higher during July when daily hours of bright sunshine is the lowest 30.51 % of day length on wet days. Khumaltar 1350m as/ with the highest daily maximum . temperahtre 29.02 °C and minimum lemperature 20.04 °C on d1y days has higher probability of wet· days during July when the daily hours of bright sunshine is the lowest 28.12 % of day length on wet days. Similarly, Jumla at 2300m as/ has the highest daily maximum temperature 26.65 °C and minimum lemperah.tre 15.87 °C on dry days. Here, the higher probability of daily precipitation falls during August. At Bhairahawa, the daily maximum temperature is increasing at the rate of0.05 OC . per year where as at Khumaltar the daily maximum temperature is increasing at the rate of0.12 OC . per year. There is no increase in daily maximum temperature at Jumlt:J.. During 1997 some extreme events are found in all Jhe selected stations. However, high and low precipitations are observed in some years, there is no significant increase trend of total annual precipilatian over the years. · Link for e-copy: http://elibrary.narc.gov.np/?r=762 in Proceedings of the 23rd National Summer Crops Workshop on Maize Research and Production held NARC Khumaltar, Lalitpur, Nepal, July 2-4, 2002, / Adhikari, K.     Climatic scenario in the three stations of Nepal agricultural research council representing different agro-ecological zones of Nepal [printed text] / ,Shrestha, S.P., Author ; K.K Sherchand, Author . - [s.d.] . - 322-336 p. Languages : English (eng) Abstract: Agri~ulture i3 vulnerable to climate. It is weather dependent. Nepal has a wide variety of climates from subtropics in the south, warm and cool in the hills, to cold in the mountains, which determ'ines . overall biodiJ~ersity and agriculhtral development activities. This paper presents the climatic scenarios of three Agricultural Research Stations of Neap Agricultural Research Council representing terai, hill and mountain bidts. Bhairahawa at 109m as/ is the hottest among .the selected station with daily maximum temperature 36.44 °C on dry daYs and 33.61 °C on wet days during July and May respectively. The probably of wet days is higher on the month of July-August. And the total daily precipitation is higher during July when daily hours of bright sunshine is the lowest 30.51 % of day length on wet days. Khumaltar 1350m as/ with the highest daily maximum . temperahtre 29.02 °C and minimum lemperature 20.04 °C on d1y days has higher probability of wet· days during July when the daily hours of bright sunshine is the lowest 28.12 % of day length on wet days. Similarly, Jumla at 2300m as/ has the highest daily maximum temperature 26.65 °C and minimum lemperah.tre 15.87 °C on dry days. Here, the higher probability of daily precipitation falls during August. At Bhairahawa, the daily maximum temperature is increasing at the rate of0.05 OC . per year where as at Khumaltar the daily maximum temperature is increasing at the rate of0.12 OC . per year. There is no increase in daily maximum temperature at Jumlt:J.. During 1997 some extreme events are found in all Jhe selected stations. However, high and low precipitations are observed in some years, there is no significant increase trend of total annual precipilatian over the years. · Link for e-copy: http://elibrary.narc.gov.np/?r=762

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Effect of different fertilizers in reducing methane gas (Ch4) emission from rice fields / G Malla    

Public ISBD 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 in Summer crops research in Nepal: Proceedings of the 25th Summer Crops Workshop held at Kathmandu 21-23 June 2007 / Adhikari, N.P.     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. 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

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