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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=1052URL Study on rice and CO2-C emission under differnt temperature regime in mid-hill conditon / Ghanashyam Malla
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Study on rice and CO2-C emission under differnt temperature regime in mid-hill conditon Material Type: printed text Authors: Ghanashyam Malla ; Gautam, Anand Kumar, Author ; Amit Timilsina, Author Pagination: 247-249 p. Languages : English (eng) Keywords: CO2-C emission ; open top chamber (OTC) planting dates rainfall pattern Abstract: Elevated temperature and unusual rain is adversely affecting agricultural crops. Threats in the
rice crop due to temperature rise are: change in crop phenology, physiology, grain yield and
even crop success along with moisture and nutrient availability. An experiment was carried
out in field and open top chamber (OTC) to study the response of rice variety (Khumal 4),
C02-C emission under different temperature regime and different dates of transplanting (19th
June, 29th June, 9th July) in 20 I 0 and 2012. Experiment showed that heading and maturity
were 4-7 and I 0-12 days earlier in OTC .Average grain yield was higher by 9.2% in OTC.
Higher average grain yield was recorded in 3'd date of planting under both conditions.
Average daily temperature was 4-5°C higher in OTC. C02-C emission under OTC was nearly
24% higher compared to field, whereas organic carbon in OTC was lower compared to field.
Thus, yield can be increased under elevated temperature and unusual rainfall with proper
water management practices. Therefore, a strong monitoring system on climatic parameters
and their impact on crop have to be regulated to increase rice crop production.Link for e-copy: http://elibrary.narc.gov.np/?r=904 Study on rice and CO2-C emission under differnt temperature regime in mid-hill conditon [printed text] / Ghanashyam Malla ; Gautam, Anand Kumar, Author ; Amit Timilsina, Author . - [s.d.] . - 247-249 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Languages : English (eng)
Keywords: CO2-C emission ; open top chamber (OTC) planting dates rainfall pattern Abstract: Elevated temperature and unusual rain is adversely affecting agricultural crops. Threats in the
rice crop due to temperature rise are: change in crop phenology, physiology, grain yield and
even crop success along with moisture and nutrient availability. An experiment was carried
out in field and open top chamber (OTC) to study the response of rice variety (Khumal 4),
C02-C emission under different temperature regime and different dates of transplanting (19th
June, 29th June, 9th July) in 20 I 0 and 2012. Experiment showed that heading and maturity
were 4-7 and I 0-12 days earlier in OTC .Average grain yield was higher by 9.2% in OTC.
Higher average grain yield was recorded in 3'd date of planting under both conditions.
Average daily temperature was 4-5°C higher in OTC. C02-C emission under OTC was nearly
24% higher compared to field, whereas organic carbon in OTC was lower compared to field.
Thus, yield can be increased under elevated temperature and unusual rainfall with proper
water management practices. Therefore, a strong monitoring system on climatic parameters
and their impact on crop have to be regulated to increase rice crop production.Link for e-copy: http://elibrary.narc.gov.np/?r=904 E-copies
http://nkcs.org.np/narc/dl/?r=904URL