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All Journal Jurnal Ecolab JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT
A. Wihardjaka
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Engineering Environmental Science

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EMISI GAS RUMAH KACA DAN HASIL GABAH DARI BEBERAPA VARIETAS PADI UNGGUL TIPE BARU DI LAHAN SAWAH TADAH HUJAN DI JAWA TENGAH A. Wihardjaka; Sarwoto Sarwoto
Jurnal Ecolab Vol 9, No 1 (2015): Jurnal Ecolab
Publisher : Pusat Standardisasi Instrumen Kualitas Lingkungan Hidup Laboratorium Lingkungan (P3KLL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.902 KB) | DOI: 10.20886/jklh.2015.9.1.9-16

Abstract

Pelepasan varietas unggul tipe baru sebagai jawaban akan peningkatan kebutuhan pangan nasional. Beberapa varietas padi telah rentan terhadap serangan organisme pengganggu tanaman, sehingga potensial menurunkan hasil gabah. Di sisi lain, budidaya padi sawah berkontribusi terhadap pelepasan gas rumah kaca terutama metana ke atmosfer yang dapat menyebabkan pemanasan global. Informasi emisi metana dari beberapa varietas inhibrida masih terbatas. Penelitian dilaksanakan dengan tujuan untuk mengetahui besarnya emisi metana dari beberapa varietas inhibrida yang dibudidayakan di lahan sawah tadah hujan. Percobaan disusun menggunakan rancangan acak kelompok dengan tiga ulangan dan perlakuan varietas padi yang meliputi Inpari 14, Inpari 15, Inpari 17, Inpari 18, Inpari 20, Ciherang, Situ Bagendit, IR64. Inpari 17 dan 18 merupakan kultivar padi yang menghasilkan emisi metana lebih rendah daripada IR64, Ciherang, dan Situ Bagendit. Emisi metana terendah dari kultivar yang diuji adalah Inpari 18 < Inpari 17 < IR64 < Situ Bagendit < Ciherang < Inpari 20 < Inpari 14 < Inpari 15. Hasil gabah kering giling tertinggi dari kultivar yang diuji di lahan sawah tadah hujan adalah Inpari 17 < Inpari 18 < Situ Bagendit < Inpari 15 < Inpari 20 < Inpari 14 < IR64 < Ciherang. Inpari 17 dan 18 merupakan kultivar padi yang berdaya hasil tinggi dan rendah emisi metana dengan indeks emisi metana masing-masing 0,01 kg CH4 kg-1 gabah.
Population Dynamics of Microorganism and Greenhouse Gas Emission By Applying Chicken Manure in Peat Soil Ali Pramono; Terry Ayu Adriani; A. Wihardjaka; Prihasto Setyanto
Journal of Wetlands Environmental Management Vol 4, No 2 (2016): July-December
Publisher : Center for Journal Management and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (486.328 KB) | DOI: 10.20527/jwem.v4i2.103

Abstract

Peat land accumulates organic materials and emits greenhouse gas (GHG). Agricultural activities in peat land cause the subsidence of peat land surface and the loss of carbon in the form of GHG. Appropriate management of peat land for agriculture would reduce GHG emission. This research aims to understand the microorganism population dynamics and emission of GHG on the treatment of chicken manure application in peat land. The research was conducted in the GHG Laboratory of Indonesia Agricultural Environment Research Institute (IAERI) in 2012 using peat material taken from Jabiren, Central Kalimantan. The experiment was done by incubating peat soil for 2 months with the treatment of chicken manure application and without manure. The incubation experiment was conducted by using paralon PVC pipe. Parameters observed included pH, Eh, bacteria population and fungi, as well as GHG flux (CO2, CH4 and N2O). GHG samples taking method was used a sealed containment. The research result showed at the peat given chicken manure treatment, bacteria population decreased at the end of incubation; fungi population, however, increased. The application of chicken manure on peat land planted rubber trees and pineapples would reduce GHG emission by 12.8% as compared without manure application.
Co-Authors Ali Pramono Prihasto Setyanto SARWOTO SARWOTO Terry Ayu Adriani