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All Journal Journal of Degraded and Mining Lands Management Jurnal Ecolab
B H Sunarminto
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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HUBUNGAN FLUKS METANA DAN DINITROGEN OKSIDA DENGAN KARAKTERISTIK TANAH SAWAH TADAH HUJAN DI JAWA TENGAH A Wihardjaka; S D Tandjung; B H Sunarminto; E Sugiharto
Jurnal Ecolab Vol 6, No 2 (2012): Jurnal Ecolab
Publisher : Pusat Standardisasi Instrumen Kualitas Lingkungan Hidup Laboratorium Lingkungan (P3KLL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jklh.2012.6.2.90-98

Abstract

Kondisi basah – kering tanah sawah tadah hujan yang silih berganti mempengaruhi dinamika gas rumah kaca metana dan dinitrogen oksida dalam tanah. Besarnya produksi CH4 dan N2O terkait dengan sifat fisik, kimia, dan biologi tanah sawah tadah hujan. Penelitian dilaksanakan di laboratorium untuk mengetahui hubungan antara fluk metana dan dinitrogen oksida dan karakteristik tanah sawah tadah hujan Inceptisol. Contoh tanah diinkubasi selama satu bulan dan dianalisis produksi CH4 dan N2O, dan karakteristik fisik, kimia, dan biologi tanah. Laju produksi metana dari tanah sawah tadah hujan Inceptisol berkorelasi positif secara nyata dengan kandungan C organik dan berkorelasi negatif dengan ketersediaan sulfat dan mangan dalam tanah. Produksi dinitrogen oksida dari tanah sawah tadah hujan Inceptisol berkorelasi positif secara nyata dengan kandungan nitrat dan berkorelasi negatif dengan ketersediaan mangan (Mn) dalam tanah dan kandungan lempung
Application of perennial legume green manures to improve growth and yield of organic lowland rice Winarni, M; Yudono, P; Indradewa, D; Sunarminto, B H
Journal of Degraded and Mining Lands Management Vol. 4 No. 1 (2016)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2016.041.681

Abstract

A pot experiment in green house was done to study the effect of the dosage and speciesof perennial legume green manures to the physiological traits, growth and yield of organic lowland rice (Oryza sativaL.), and to obtain the optimal dosage as well.  The research was arranged in a factorial randomized block design consistedof two factors with three replications.The first factor was the species of perennial legume thatconsisted of threespecies: Turi (Sesbaniagrandiflora), Glirisidia (Gliricidiasepium), and Lamtoro (Leucaenaleucocephala) and cow manure as control treatment. The second factor was the dosage of green manure thatconsisted of four levels: 5, 10, 20 and 40 t/ha.  The results showed that application ofperennial legumesinto the soil significantly improved the growth and yield of rice.  The application of  20 t Glirisidia leaves/haproduced the highest grain yield, followed by 20 t Lamtoro leaves/ha and 20 t Turi leaves/ha.  The optimal dosages of S. grandiflora, G. sepium and L. leucochepala leaves that could yield 58.03 g/hill (equivalent to14.51 t/ha), 53.67 g/hill (equivalent to 13.42 t/ha), and 49.67 g/hill (equivalent to 12.42 t/ha) were 28.05, 25.46 and 26.41 t/ha, respectively.
Co-Authors A Wihardjaka D Indradewa E Sugiharto Rahayu Rahayu S D Tandjung Winarni, M Yudono, P