TINGKAT KERACUNAN BESI DALAM BENTUK FERRO DAN FERRI SERTA PERTUMBUHAN TANAMAN PADI (Oryza sativa.L) PADA MEDIA PASIR



DOI: https://doi.org/10.25077/js.1.2.74-83.2004

Mimien Hariyanti *  (Jurusan Tanah Fakultas Pertanian Universitas Andalas)
Herviyanti Herviyanti
Hermasah Hermansah

(*) Corresponding Author

Abstract


The Recent ricefield on marginal land such as Ultisol and Oxisol has low productivity due to Fe-toxicity for rice plant (Oryza sativa.L). Flooded ricefield has reduced Ferri (Fe3+) form into Ferro (Fe2+) from which is easy to dissolve and can be toxic for plant growth. This research was aimed to determine Fe concentration that causes toxic for rice growth on sand medium either under flooded or unflooded condition. Iron was applied in form of FeSO4 at 10 levels (0, 2, 4, 8, 16, 32, 64, 128, 256, 512 ppm). Based on laboratory analyses and visual symptoms, it was found that Fe toxicity was started at Fe concentration 128 ppm. Form of Fe which is toxic to this rice plant was ferro (Fe2+) because this form is active in plant metabolism. Fe concentration at 128 ppm both conditions had shown reddish brown spot on the whole plant, therefore growth and development of plants either above or below soil surface was limited or stressed.
Keywords: recent ricefield, Fe toxicity, Ferro and Ferri, brownish symptom
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References


Breemen,V, Moormann.FR.1978. Iron-toxic soils In Soil and Rice. The International Rice Research Institute Los Banos, Laguna Philippines: pp. 782-785

Burbey, Zadry.H, Z.Zaini. 1990. Pengendalian keracunan besi di lahan mineral masam. Dalam Prosiding Pengelolaan Sawah Bukaan Baru Menunjang Swasembada Pangan dan Program Transmigrasi di Padang. Fakultas Pertanian Universitas Eka Sakti dan Balitan Sukarami Solok: hal. 370-373

Hidayat, A. 1978. Methods of soil chemical analysis. Central Research Institute for agriculture. Bogor. Indonesia. pp 77 83.

Lindsay,W.L. 1972. Inorganic phase equilibria of micronutrients in soil In Micronutrients in agriculture. Soil Science society of America, inc. Madison, Wisconsin USA. pp 41-45.

Nippon koei & Associate.2001. Laporan evaluasi lapisan tanah atas dan tata guna lahan daerah irigasi Batang Hari paket LCB-3 (Lot-1). Nippon Koei & Associate. Padang. hal III-17

Noor, M. 1996. Padi lahan marjinal. Penebar Swadaya. Jakarta: hal.3 7

Nyakpa, M.Y.,A.M. Lubis, M.A. Pulung, A.G. Amrah, A. Munawar, G.B. Hong, N. Hakim. 1988. Kesuburan tanah. Universitas Lampung. Palembang: hal. 218-220

Ryan, J ,G.Estefan and A.Rashid. 1999. Soil and plant analysis laboratory manual. 2nd Edition. International Center for Agricultural Research In Dry Area (ICARDA) and National Agricultural Research Center, Islamabad, Pakistan. (NARS). pp 139 142.

Suseno,H. 1974. Fisiologi tumbuhan. Departemen Agronomi. Fakultas Pertanian. Institut Pertanian Bogor. Bogor. hal 22

Taher, A. 1990. Perpadian dunia, transmigrasi, pengelolaan sawah bukaan baru di Indonesia. Dalam Prosiding Pengelolaan Sawah Bukaan Baru Menunjang Swasembada Pangan dan Program Transmigrasi di Padang. Fakultas Pertanian Universitas Eka Sakti dan Balitan Sukarami Solok: hal. 140-141

Todano, T dan Yoshida, S. 1978. Chemical change in submerged soils and their effect on rice growth. In Soil and Rice. The International Rice Research Institute, Los Banos Laguna Philippines: pp. 399-419

Yardha dan A.Yusuf. 1993. Toleransi tiga varietas padi sawah terhadap keracunan besi. Buletin Pertanian, volume 12. No.3: hal 23-25


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