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Journal : Jurnal Tanah dan Iklim

Nutrient Balance and Economic Analyses of P Fertilization on an Acid Upland Soil in Sumatra SANTOSO, DJOKO; WIGENA, I GEDE PUTU; LEFROY, R.D.B
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 19 (2001): Desember 2001
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.2017/jti.v0i19.299

Abstract

Soil and crop responses to P fertilization were assessed for seven seasons, from rainy season 1997/1998 until rainy season 2000/2001, in a field experiment at Pauh Menang village of Jambi province, Indonesia. An incomplete factorial combination of six levels of inorganic P (0, 19, 38, 57, 76 and 95 kg P ha-1 as SP-36), two sources organic matters (FYM and stylo), and lime, was laid out in a randomized complete block design with four replicates. The soil in this site was very P deficient and application of 38 kg P ha-1 increased corn yields significantly from less than 1.0 to about 3.5 t ha-1 for the first four crops. The higher rates of applied P didn’t increase further corn yields, indicating that external P requirement was fulfilled. A build-up and maintenance rate of banded application of SP-36,that required in this soil was 38 and 19 kg P ha-1, respectively. Broadcast application for the entire topsoil layer in a plot or farmland would require considerably larger amount of P fertilizer for building up of P level than the banded application. The balances of P treatments were all positive and substantiated by the increasing Colwell P content of the soil with increasing rate of applied P. Although no apparent symptom of Zn deficiency was observed, the Zn content in plant leaf decreased with increasing rate of applied P. By assuming all labour costs as cash costs in conducting economic analyses to calculate the B/C ratios, in general only the SP-36 treatments gave beneficial returns. Although many of the B/C ratios were less than 1.0, the amount of total benefits that could be earned by farmers were considerably high because the total production costs included all labour costs.
Co-Authors . Mansyurdin . Siswanto . Suharyanto . SYAFARUDDIN, . Aditia Wardana, Aditia Aditiawardana Aditiawardana, Aditiawardana Agung Dwi Indrawan Ahmad Fauzi AHMAD RIDUAN Aida Farida Alda, Rieza Rizqi Alsagaff, Mohammad Yusuf AMANAH, Dian Mutiara AMANAH, Dian Mutiara Amin, Mochammad Andre Noevi Rahmanto Anton Subarno ANTONIUS SUWANTO Aprih Santoso, Aprih Ardityo R Ardhany, Ardityo R Artaria Tjempakasari, Artaria Asmini Budiani Aswaldi Anwar ASWIDINNOO, Hajrial Bambang S Purwoko Bastin Fitriatus Hasanah Bekti Wulandari Budi Sulistijo Chandra Irwanadi Mohani, Chandra Irwanadi Chandra Irwanadi, Chandra Chibtiyah, Nur chieko Hamada, chieko D Ningsih, D Darda Efendi Darharta Dahrin DEDI SOLEH EFFENDI, DEDI SOLEH Empitu, Maulana Antiyan Endrizal ERIS, Deden Dewantara Fajar, Saiful Ferdiyono, J. Reza FITRANTI, Niyyah FITRANTY, Niyyah Fitriyah, Fauziatul GHONI, M. A. GHONI Ginanjar, Muhammad Syukron HABIBULLAH, Hanning Susilo Haerani Rasyid, Haerani HAJRIAL ASWIDINNOOR Hakim, Zaky El Hamidah, Berliana HANDAYAN, Agustina A. HANDAYAN, Agustina A. HAPPY WIDIASTUTI Hasanatuludhhiyah, Nurina Hasanuddin Z. Abidin Hasanuddin Z. Abidin, Hasanuddin Hayati Minarsih Hendra Grandis I GEDE PUTU WIGENA I Haryoko, I Ichiyu Shou, Ichiyu Imron Riyadi Indarto Indarto Indhira Hari Kurnia Isnu Irwantoro, Isnu JAYA, Abdul Mollah S. Joenil Kahar, Joenil Jumiyanto Widodo Kadariswantiningsih, Ika Nindya KRESNAWATY, Irma Kresnawaty, Irma Kunimi Maeda, Kunimi Laesanpura, Agus Laesanpura, Agus M Thaha, M MARAHIMIN, B. MARAHIMIN Mayta Novaliza Isda Mitsumine Fukui, Mitsumine MOCHAMMAD THAHA Moh. Yogiantoro, Moh. MS, Freddy Muhammad Jusuf Muhammad Munir Munadi Munadi Munir, Muh Musliar Kasim Muslikhin Muslikhin Niken Ayu Larasati, Niken Ayu NIKOLAU, Basil J Nugroho, Cahyo Wibisono Nunuk Mardiana, Nunuk NURILMALA, F PANJAITAN, K. PANJAITAN Pipit Utami Pradusuara, Franes pranawa pranawa, pranawa PRIYONO, . PURBA, A.R. PURBA PUTRANTO, Riza A PUTRANTO, Riza A PUTRANTO, Riza A. Putri, Eka Arum Cahyaning R.D.B LEFROY Raduan, Atiqah Ramlan Arief Fathony, Ramlan Arief Renita Renita Rita Hayati ROEDHY POERWANTO Rokib, Muhammad Nur Saddewisasi, Wyati SAMANHUDI, . Saptowo Jumali Pardal, Saptowo Jumali SARAGIH, A. H. SARAGIH SARI, Dini Astika Satoshi Horikoshi, Satoshi SINAGA, Jisman Slamet Slamet Soekarno Mismana Putra, Soekarno Mismana soewanto soewanto, soewanto Sri Hendrastuti Sri Wahyuni Sri Waluyanti Subagus Wahyuono Sudarsono SUDARSONO SUDARSONO Sugeng Riyanto Sugiyanto Sugiyanto Sukarti Moeljopawiro Suparman Suparman Suryansyah, Maulana Muhtadin SUSANTI, Paramitha SUSANTI, Paramitha Suzuki, Yusuke SYARIEF, Auzar Tetty Chaidamsari, Tetty Tri Harso Karyono Tri P Asmarawati, Tri P TRI-PANJI, . TRI-PANJI, . TRIASTANTO, Oktaviany Ferry Trisintyandika, Idkha UMAHATI, Binti Khurotul UMAHATI, Binti Khurotul Umi Rochayati Umi Rokhayati, Umi Vera Sadarviana, Vera Wahyudi W. Parnadi Warsa Warsa Wawan Gunawan A. Kadir Wedyanto K, Wedyanto Widodo Widodo Widyastuti, SM Windari, Era Nurisa WIRAMIHARDJA, Memed Y, Yatini Yasuhiko Tomino, Yasuhiko yatini, yatini Yusniwati Yusniwati