Oscar Regazzoni
Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya
Articles
2
Documents
SISTEM IRIGASI BERSELANG (INTERMITTENT IRRIGATION) PADA BUDIDAYA PADI (Oryza sativa L.) VARIETAS INPARI-13 DALAM POLA SRI (SYSTEM OF RICE INTENSIFICATION)

Jurnal Produksi Tanaman Vol 1, No 2 (2013)
Publisher : Jurusan Produksi Tanaman Fakultas Pertanian Universitas Brawijaya

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Abstract

Percobaan ini bertujuan untuk mengetahui pengaruh sistem irigasi berselang terhadap produktivitas tanaman padi varietas Inpari-13. Percobaan ini dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Brawijaya di Desa Kepuharjo, Kecamatan Karangploso, Kabupaten Malang mulai Bulan Maret sampai Juli 2012. Metode percobaan yang digunakan adalah Rancangan Petak Terbagi (RPT) dengan interval hari tergenang sebagai petak utama (PU) dengan 3 taraf (G1: 2 hari tergenang, G2: 3 hari tergenang, G3: 4 hari tergenang) dan interval hari kering sebagai anak petak (AP) dengan 4 taraf (K1: 2 hari kering, K2: 4 hari kering, K3: 6 hari kering, K4: 8 hari kering), serta perlakuan kontrol (K0: tanpa hari kering). Berdasarkan hasil percobaan didapatkan kesimpulan bahwa terdapat hubungan yang kuadratik pada interval 2 hari penggenangan terhadap interval hari kering pada parameter bobot gabah kering giling dan produksi gabah kering giling per hektar. Interval 2 hari penggenangan mempunyai pengaruh 99,85% pada semua interval hari kering terhadap parameter bobot gabah kering giling dan produksi gabah kering giling per hektar. Interval pengeringan 2 hari dan 6 sampai 8 hari memberikan hasil yang sama tinggi apabila dikombinasikan dengan interval penggenangan 2 sampai 3 hari yaitu 6,49 sampai 6,77 ton ha-1.

Physiological Character of Cocoa Clones that Cultivated under Three Species of Shade Trees

Pelita Perkebunan (Coffee and Cocoa Research Journal) Vol 30, No 3 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

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Abstract

This experiment aims to know the solar energy efficiency of four clones of cocoa that cultivated under three different shading plants. This experiment has been done from September until December 2013 located at Kaliwining Experiment Farm with characteristic 45 m above sea level, soil type is low humic gley, soil texture is silty clay loam, and climate classification type D based on Scmidht and Fergusson classification. This experiment used nested design as experimental design with species of shading plant as main plot which are teak (Tectona grandis L.), krete (Cassia surattensis (Burm.) F.), lamtoro (Leucaena leucocephala L.) and cocoa clones as sub plot which are Sulawesi 1, Sulawesi 2, KKM 22, and KW 165. The observation of physiological character consists of the level of leaf chlorophyll, the level of leaf nitrogen, spesific leaf area, leaf area index, the amount of stomata, and stomatal density. The experimental result showed that there is differences (heterogenity) between shading location based on homogenity test by Bartlett method. The interaction effect between plant spesies and cocoa clones are affect the leaf area index and stomatal density, whereas the level of leaf chlorophyll, the level of leaf nitrogen, and spesific leaf area was affected by the kind of plant spesies. Keywords : Physiological character, cocoa Ccones, shading trees, nested design, Bartlett method