Cahyani, Christy Nur (2018) Potensi Pemanfaatan Plant Growth Promoting Rhizobacteria (Pgpr) Dan Berbagai Media Tanam Terhadap Populasi Mikroba Tanah Serta Pertumbuhan Dan Produksi Tanaman Kentang. Sarjana thesis, Universitas Brawijaya.
Abstract
Ketersediaan benih kentang bermutu di Indonesia hanya mencapai 7,4% jauh dari kebutuhan yaitu 140.000 ton pertahun, termasuk impor. Pembibitan kentang dilakukan dengan menggunakan tanah dengan kandungan hara dan mikroba yang masih kurang mencukupi untuk pertumbuhan tanaman kentang. Oleh karena itu, perlu dicari alternatif lain untuk mengatasi masalah tersebut, antara lain dengan pendekatan program intensifikasi. Perbaikan kesuburan tanah dilakukan dengan aplikasi berbagai PGPR dan media tanam, sehingga kualitas tanah meningkat dan dapat meningkatkan produktivitas kentang. penelitian ini bertujuan untuk: 1. Mengetahui pengaruh pemberian PGPR dan media tanam terhadap P-Total dan N-Total media tanam. 2. Mengetahui pengaruh pemberian PGPR dan media tanam terhadap populasi bakteri pelarut fosfat dan bakteri penambat nitrogen. 3. Mengetahui pengaruh pemberian PGPR dan media tanam terhadap pertumbuhan dan produksi tanaman kentang. Penelitian dilakukan di Green House Sumber Brantas, Jawa Timur, serta analisis kimia dan biologi tanah dilakukan di Laboratorium Kimia dan Biologi Tanah, Jurusan Tanah, Fakultas Pertanian, Universitas Brawijaya, Malang, pada bulan Mei hingga September 2017. Penelitian menggunakan Rancangan Petak Terbagi (Split Plot) dengan 12 perlakuan. Masing-masing perlakuan diulang sebanyak 3 kali sehingga diproleh 36 satuan percobaan. Perlakuan yang diberikan yaitu: P0M1 (Tanpa PGPR + Arang Sekam : Cocopeat (1:1)), P1M1 (10 ml/l PGPR + Arang Sekam : Cocopeat (1:1)), P2M1 (20 ml/l PGPR + Arang Sekam : Cocopeat (1:1)), P0M2 (Tanpa PGPR + Tanah : Arang Sekam (1:1)), P1M2 (10 ml/l PGPR + Tanah : Arang Sekam (1:1)), P2M2 (20 ml/l PGPR + Tanah : Arang Sekam (1:1)), P0M3 (Tanpa PGPR + Tanah : Arang Sekam : Cocopeat (1:1:1)), P1M3 (10 ml/l PGPR + Tanah : Arang Sekam : Cocopeat (1:1:1)), P2M3 (20 ml/l PGPR + Tanah : Arang Sekam : Cocopeat (1:1:1)), P0M4 (Tanpa PGPR + Tanah), P1M4 (10 ml/l PGPR + Tanah), P2M4 (20 ml/l PGPR + Tanah). Parameter yang diamati meliputi pH, C-Organik, P-Total, N-Total, populasi bakteri pelarut fosfat dan penambat nitrogen, tinggi tanaman, jumlah daun, jumlah umbi, berat umbi, berat basah dan berat kering tanaman. Analisis data menggunakan analisis sidik ragam dengan software Genstat 12th edition dan apabila berpengaruh nyata maka dilakukan uji lanjut menggunakan uji DMRT dan uji korelasi menggunakan software SPSS 20. Pemberia PGPR dan media tanam terjadi interaksi nyata terhadap parameter N-Total tanah yaitu pada perlakuan P2M2 dengan nilai tertinggi 1,02%, populasi bakteri penambat nitrogen yaitu pada perlakuan P2M2 dengan nilai tertinggi 77,25 x 105 cfu ml-1, tinggi tanaman dan berat kering tanaman yaitu pada perlakuan P2M2 dengan nilai tertinggi adalah 12,99 cm dan 3,61 gram. Produksi tertinggi yaitu pada perlakuan P2M2 sebesar 20 umbi/tanaman.
English Abstract
The availability of high quality potato seeds in Indonesia is only 7.4% far from the needs of 140,000 tons per year, including imports. Seed potatoes are done by using soil with nutrient content and microbes that are still insufficient for the growth of potato plants. Therefore, it is necessary to find other alternatives to overcome the problem, among others by technological innovation, strategy and approach of intensification program. Improvement of soil fertility is done with PGPR and various growing media, so that soil quality increases and can increase potato productivity. This study aims to: 1. Knowing ability of PGPR and growing media on P-Total and N-Total of growing media. 2. Knowing ability of PGPR and growing media on population of soil microbe. 3. Knowing ability of PGPR and growing media on the growth and production of potato. The study was conducted at Sumber Brantas of Green House and Soil Chemistry and Biology Laboraatory, Soil Departement, Faculty of Agriculture, University of Brawijaya, Malang, from March 2017 to September 2017. This research using Split Plot Design with 12 treatments. Each treatment was repeated 3 times so that obtained 36 units of experiment. Treatments include: P0M1 (without PGPR + Husk Charcoal : Cocopeat (1:1)), P1M1 (10 ml/l PGPR + Husk Charcoal : Cocopeat (1:1)), P2M1 (20 ml/l PGPR + Husk Charcoal : Cocopeat (1:1)), P0M2 (without PGPR + Soil : Husk Charcoal (1:1)), P1M2 (10 ml/l PGPR + Soil : Husk Charcoal (1:1)), P2M2 (20 ml/l PGPR + Soil : Husk Charcoal (1:1)), P0M3 (without PGPR + Soil : Husk Charcoal : Cocopeat (1:1:1)), P1M3 (10 ml/l PGPR + Soil : Husk Charcoal : Cocopeat (1:1:1)), P2M3 (20 ml/l PGPR + Soil : Husk Charcoal : Cocopeat (1:1:1)), P0M4 (without PGPR + Tanah), P1M4 (10 ml/l PGPR + Soil), P2M4 (20 ml/l PGPR + Soil). The parameters obseved include pH, C-Organic, P-Total, N-Total, the population of phosphate solubilizing bacteria and nitrogen fixing bacteria, plant height. Data analysis using Analysis of Varince (ANOVA) with GENSTAT 12th edition software and if the ANOVA significant then do a further test DMR level of 5 %. To determine the relationship between two variable use correlation using SPSS 20. PGPR and growing media occured a interaction with N-Total in P2M2 treatment, with the highest value 1,02%, nitrogen fixing bacteria in P2M2 treatment, with the highest value 77,25 x 105 cfu ml-1 plant height and dry weight of plants in P2M2, with the highest value 12,99 cm and 3,61 gram. The highest production is in the treatment of P2M2 by 20 tubers/plants.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FP/2018/19/051801504 |
| Uncontrolled Keywords: | - |
| Subjects: | 600 Technology (Applied sciences) > 635 Garden crops (Horticulture) > 635.2 Edible tubers and bulbs > 635.21 Potatoes |
| Divisions: | Fakultas Pertanian > Ilmu Tanah |
| Depositing User: | Nur Cholis |
| Date Deposited: | 22 May 2018 02:19 |
| Last Modified: | 20 Feb 2024 04:10 |
| URI: | http://repository.ub.ac.id/id/eprint/10788 |
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