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Jurnal Lahan Suboptimal
Published by Universitas Sriwijaya
ISSN : 22526188     EISSN : 23023015     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Lahan Suboptimal: Journal of Suboptimal Lands (JLSO) (p-ISSN 2252-6188; e-ISSN 2302-3015) publishes original research papers, literature reviews, and short communications that cover on topics relevant to suboptimal lands: freshwater swamps, tidal lowlands, peatlands, dry and dry acid lands, shaded ecosystem, ex-mined lands, saline and marine coastal wetland ecosystems. The Journal serves as a multi-disciplinary forum covering key issues in Suboptimal Lands science and technology, management, policy and ecological economics. The journal is published by Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO), Universitas Sriwijaya. The journal was first published on April of 2012 with twice per year in frequency on April and October.
Arjuna Subject : -
Articles 12 Documents
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Search results for , issue "Vol. 2 No. 2 (2013)" : 12 Documents clear
Kajian Sistem Tumpangsari Jagung Manis dan Kedelai di Lahan Kering Kabupaten Musi Rawas Haris Kriswantoro; Hermanto Hermanto
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (236.272 KB) | DOI: 10.33230/JLSO.2.2.2013.68

Abstract

Potensi lahan kering di Kabupaten Musi Rawas cukup luas, dari luas lahan 1,2 juta hektar, 92,1 persen merupakan lahan kering, umumnya didominasi oleh tanah Ultisol.  Tanah jenis ini bersifat masam (pH tanah rendah), miskin hara, mudah tererosi, mempunyai kandungan Al dan Fe yang tinggi serta kandungan bahan organik tanah yang rendah.  Pengkajian sistem tumpangsari jagung manis dan kedelai di lahan kering yang bertujuan untuk menentukan pengaruh sistem tumpangsari terhadap pertumbuhan dan produksi jagung manis dan kedelai, telah dilaksanakan di Desa Lubuk Rumbai Kabupaten Musi Rawas pada bulan November 2012 hingga Maret 2013.  Pengkajian dilaksanakan dengan menggunakan metode eksperimental yang terdiri dari 4 macam perlakuan sistem penanaman, yaitu: tumpangsari jagung manis dan kedelai tanpa pengapuran, tumpangsari jagung manis dan kedelai tanpa pengapuran, monokultur jagung manis dan monokultur kedelai.  Varietas jagung manis yang digunakan adalah Master Sweet dan varietas kedelai adalah Anjasmoro.  Kedelai menggunakan jarak tanam 40 cm x 15 cm untuk perlakuan tumpangsari dan monokultur, sedangkan tanaman jagung pada perlakuan tumpangsari menggunakan jarak tanam 200 cm x 75 cm dan jarak tanam 75 cm x 50 cm untuk monokultur.  Hasil ansira memperlihatkan bahwa pada tanaman jagung manis perlakuan sistem penanaman memberikan pengaruh yang sangat nyata terhadap tinggi tanaman, jumlah tongkol, panjang tongkol, pengaruh nyata terhadap berat basah berangkasan dan pengaruh tidak nyata terhadap jumlah daun dan berat tongkol per tanaman, sedangkan terhadap tanaman kedelai perlakuan sistem penanaman memberikan pengaruh yang sangat nyata terhadap tinggi tanaman, jumlah cabang, jumlah polong, berat 100 biji, produksi per petak dan memberikan pengaruh tidak nyata terhadap berat polong per tanaman. Berdasarkan hasil uji BNJ dan tabulasi menunjukan bahwa perlakuan sistem tumpangsari jagung manis dan kedelai dengan pengapuran memberikan pengaruh terbaik terhadap pertumbuhan dan produksi jagung manis dan kedelai
Pengaruh Kombinasi Pupuk Organik dan Hayati Terhadap Pertumbuhan dan Produksi Galur Jagung (Zea mays. L) Hasil Seleksi Efisien hara Pada Lahan Kering Marginal Yopie Moelyohadi; M. Umar Harun; Munandar Munandar; Renih Hayati; Nuni Gofar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (453.735 KB) | DOI: 10.33230/JLSO.2.2.2013.50

Abstract

This study aimed to study the growth and yield of maize crop nutrient  efficient  selection against  the  combination of different types of organic fertilizers and bio-fertilizers at low dose levels of chemical fertilizer on marginal dry land for the development of technological innovation fertilization on maize crops to reduce the use of chemical fertilizer on marginal dry land. This study was conducted in the field trials of Agro Techno Park (ATP), the Ministry of Research and Technology, South Sumatra from  January  to May  2012.   The experimental design used was SplitPlotdesign with three replications.   . The main plot treatment was dose levels of chemical fertilizer consists of : P1 = 50 % standard dose of ATP ( 200 kg urea , 50 kg SP36 and 25 kg KCl/ha ) and P2 = 25 % standard dose of ATP ( 100 kg urea , 25 kg SP36 KCl and 1.25 kg/ha) . treatment subplot , is the combined delivery of this type of organic fertilizer + biofertilizer types , comprising : KHO = control ( without organic fertilizer + biofertilizer ) , KH1 = composted cow manure + mycorrhiza , KH2 = composted cow manure + bacterial phosphate solvent , KH3 = composted chicken manure + biological mycorrhizae , KH4 = composted chicken manure + bacterial phosphate solvent , KH5 = compost straw corn + mycorrhizae , KH6= composted maize straw + bacteria phosphate solvent , KH7 = compost Legume cover crop ( LCC ) + Mycorrhiza and compost KH 8= legume cover crop (LCC) + solvent bacteria Phosphate.  The results showed that chicken manure compost fertilizer + fertilizer mycorrhizal give the best effect on the growth and yield of dryland corn yields marginal with an average of 9.70 tons of dry cobs/ha and the combined treatment of chemical fertilizer at 50 % level and composting chicken manure + mycorrhizal give the best effect on the growth and yield of maize in marginal dry land , with an average yield reached 10.51 tons of dry seed/acre.

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