อิทธิพลของวิธีการปลูกข้าวและการเพิ่มอินทรียวัตถุต่อการปลดปล่อยก๊าซมีเทนจากนาข้าว

Effect of Cultivation Methods and Soil Organic Matter Amendment on Methane Emission of Paddy Fields

Name: ชาติชาย มณีสุวรรณ

Organization : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Name: Chartchai Maneesuwan

keyword: Methane Emission

; Fresh Rice Straw

; Burnt Rice Straw

; Green Manure

; Transplanting

; Broadcast

Abstract: A study of 2 cultivation methods; transplanting and broadcast, and 3 organic matter amendment;fresh rice straw, burnt rice straw and green manure (mung bean), on methane emission of paddy ricecv. Supanburi 1 was conducted. The design using in this experiment was 2 x 3 Split Plot inRandomized Complete Block. Each week, the emitted methane concentration of the field wasmonitored by Static Box technique and, then, analyzed by Gas Chromatography (GC/FID). Theresult showed that soil amendment by adding fresh rice straw could enhance the soil nitrogen andsoil amendment by using green manure could increase to the highest of soil organic matter. Theresult also showed that the two cultivation methods did not effect soil nutrient. However,transplanted rice incorporated with fresh rice straw amendment had the highest methane emission.Added fresh rice straw resulted in 1.4 times of higher methane emission than burnt rice straw andgreen manure. On the other hand, the methane emission of broadcast technique was not inagreement with transplanting. It was also found that rice grown by broadcast method with burntrice straw emitted a higher methane than with fresh rice straw and green manure amendments. It isinteresting to note that broadcast technique resulted in 2 times less of methane emission thantransplanting. In transplanting field, the more shoot height and root depth, the less methaneemission. Although there were not have any relation of shoot height and root depth on methaneemission of broadcast field, there were a good positively relation between root dry weight and themethane emission.

มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Address: กรุงเทพมหานคร (Bangkok)

Email: info.lib@mail.kmutt.ac.th

Name: อรพิน เกิดชูชื่น

Role: อาจารย์ที่ปรึกษา

Created: 2545

Issued: 2005-10-03

Modified: 2551-06-11

ISBN: 9749551796

CallNumber: EV318

tha

DegreeName: วิทยาศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: เทคโนโลยีสิ่งแวดล้อม

Grantor: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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