Bakri
Department Of Soil Science, Faculty Of Agriculture, Universitas Sriwijaya

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PENGGUNAAN BUDGET MODEL UNTUK MERANCANG IRIGASI KALENDER TANAMAN JAGUNG PADA TANAH TEKSTUR LEMPUNG BERPASIR UNTUK DAERAH IKLIM PALEMBANG Bakri dan Momon Sodik Imanudin
Teknotan: Jurnal Industri Teknologi Pertanian Vol 6, No 2 (2012)
Publisher : Fakultas Teknologi Industri Pertanian

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Abstract

Penelitian ini bertujuan untuk menghitung kebutuhan air tanaman lahan kering serta penjadwalan irigasi. Sebagai indikator tanaman, digunakan tanaman jagung ntuk simulasi komputer.  Data iklim harian diambil dari Stasiun Kenten Palembang.  Neraca air di bawah  zona akan dianalisis menggunakan bantuan model komputer BUDGET. Jenis tanah adalah ultisol adalah dengan tekstur tanah lempung liat berpasir di bagian atas dan di lapisan bawah adalah liat. Beberapa skenario diuji pada musim peralihan, musim basah dan kering. Hasil analisis model komputer menunjukkan bahwa tanaman jagung pada musim hujan tidak memerlukan irigasi. Untuk periode peralihan (Maret sampai Mei) diperlukan irigasi di fase pembungaan, dengan total kebutuhan air 76, 5 mm. Analisis di musim kemarau (Mei-Juli) diperlukan 198 mm air irigasi. Penjadwalan aplikasi irigasi adalah  sebanyak 9 kali dengan interval setiap 7 - hari pada masa 10 hari pertumbuhan awal, tengah dan akhir. Kata kunci: hemat air, tanaman jagung, irigasi kalender, model BUDGET
Pemetaan Status Unsur Hara Fosfor Perkebunan Kelapa Sawit Rakyat di Kelurahan Babat Sumatera Selatan Bagus Iswahyudi; Bakri Bakri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 1 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.219 KB) | DOI: 10.33230/JLSO.8.1.2019.408

Abstract

Iswahyudi et al, 2019. Oil Palm Plantation’s Phosporous Mineral Mapping on Babat District South Sumatera. JLSO 8(1):77-85. Soil nutrient status mapping was not initiated which lead to inefficiency in fertilization. Fertilizition without nutrient analysis could lead to nutrient deficiency or toxicity of nutrint. The Purpose of this research was to identify, map the nutrient status and fertilization recomendation of phosporous nutrient status in public oil palm plantation at Babat Village Babat Toman Districts Musi Banyuasin District South Sumatera Province. This research used a detailed survey methode with grid system for 16 sample which represent 16 ha and 60 cm depth of soil drilling. Phosporous nutrient status at research location ranged from 4,81 ppm to 21,86 ppm. 7 ha contained 8-20 ppm available phosphorous ot classified into medium, 6 ha contained < 8 ppm available phosphorous or classified into low and 3 h contained >20 ppm available phosporous or classified into high. Soil reaction (pH) of the research field was 5,0 and 5,5 which classify the soil into acid soil. Fertilization implemented to increase the nutrient status until medium (15 ppm) which resulted in SP-36 doses was 346,22 kg/ha for low nutrient status and 139,33 kg/ha for medium nutrient status.
Performance of paddy crop in swampland under organic pellet fertilization from Azolla and vermicompost Agus Hermawan; Dwi Probowati Sulistyani; Bakri
Jurnal Ilmiah Pertanian Vol. 17 No. 2 (2021): Jurnal Ilmiah Pertanian
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/jip.v17i2.5807

Abstract

This study aimed to examine the effect of applying organic pellet fertilizers from vermicompost and Azolla using coal fly ash as an adhesive on paddy crop response in swampland. The research was performed in a pot experiment using a completely randomized factorial design with two treatment factors. The organic pellet fertilizer doses were: 0 ton ha-1 (a control); 10 ton ha-1; 20 ton ha-1; and 30 ton ha-1 as the first factor. In the second factor, the different NPK fertilizer dose was applied: the absence of NPK fertilizer as a control; 0.5 and 1 time of the recommended dose. The results showed that the application of organic pellet fertilizer significantly improved soil pH but not significant on soil organic C and N levels. There was tendency of increased on soil pH, C-organic, and N-total with the increased doses of organic pellet fertilizers applied. The NPK fertilizer application significantly improved plant height, tiller number and plant biomass as the dose were rised up. The organic pellet fertilizer application significantly improved plant height, number of tillers, and plant biomass. Applying organic pellet fertilizer at a dose of 10 tons ha-1 should be sufficient as no further improvement with the increasing doses.