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All Journal Agrifor : Jurnal Ilmu Pertanian dan Kehutanan ZIRAA'AH MAJALAH ILMIAH PERTANIAN
Abdul Rahmi
Fakultas Pertanian Universitas 17 Agustus 1945 Samarinda
Agriculture, Biological Sciences & Forestry

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Karakteristik Sifat Kimia Tanah Dan Status Kesuburan Tanah Lahan Pekarangan Dan Lahan Usaha Tani Beberapa Kampung Di Kabupaten Kutai Barat Abdul Rahmi; Maya Preva Biantary
ZIRAA'AH MAJALAH ILMIAH PERTANIAN Vol 39, No 1 (2014)
Publisher : Pusat Publikasi Jurnal Universitas Islam Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/zmip.v39i1.33

Abstract

The purpose of the study was to determine the soil chemical characteristics of the soil and soil fertility status at the home yard and farm lands in several villages of West Kutai District.The experiment was conducted for 3 (three) months, from April 2013 to July 2013 in the villages of Muut and Dempar of Nyuatan Sub District, Purwodadi Village of Linggang Bigung Sub District; Sumber Sari Village of Barong Tongkok Sub District, and Melak Ilir Village of West Kutai District. This study used survey system, followed by soil sampling compositely at a depth of 0-20cm.  The composite soil samples were then analyzed in the laboratory.The main data that were collected include soil pH, organic C, total N, the C/N ratio, available P, cation-exchangeable base cations, CEC, base saturation, and saturation Aluminum.  The data were analyzed using soil chemical status assessment criteria and soil fertility assessment criteria of Bogor Soil Research Center. The results showed that: (1) the character of the soil chemical properties at home yard and farm land at several villages in West Kutai District, namely: soil pH is very acidic to acidic, organic C content is low to high, N total is low to moderate, C/N ratio is moderate to high, available P is very low to moderate, CEC is relatively very low, base cations classified as very low to moderate, and Al saturation is low to very high; and (2) the status of soil chemical fertility in the home yard and farm land at several villages in West Kutai District is classified as very low to low.
PENGARUH PUPUK Si DAN N, P, K TERHADAP KANDUNGAN Si DAN HASIL TANAMAN JAGUNG MANIS (Zea mays L. Saccaharata) Emma Trinurani Sofyan; Oviyanti Mulyani; Ilma Agnia; Abdul Rahmi
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 23, No 1 (2024): Maret 2024
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/agrifor.v23i1.7528

Abstract

Pertumbuhan dan produksi tanaman dipengaruhi oleh berbagai karakteristik tanah terutama kesuburan tanah yang berkaitan dengan ketersediaan unsur hara. Pengelolaan kesuburan  tanah harus diperhatikan agar tanah dapat menyokong pertumbuhan dan hasil tanaman yang tinggi dalam jangka waktu yang lama. Percobaan ini bertujuan untuk mencari dosis pupuk Si terbaik terhadap perubahan kandungan unsur hara tanah, pertumbuhan tanaman dan hasil panen tanaman jagung manis. Percobaan ini dilaksanakan di Kebun Percobaan Laboratorium Kimia Tanah dan Nutrisi Tanaman Fakultas Pertanian, Universitas Padjadjaran, Jatinangor, Sumedang pada bulan Mei sampai Agustus 2021. Rancangan penelitian yang digunakan yaitu Rancangan Acak Kelompok (RAK) yang terdiri dari sembilan perlakuan dan diulang tiga kali, yaitu: kontrol; N, P, K rekomendasi; ¼ dosis pupuk Si + 1 dosis N, P, K rekomendasi; ½ dosis pupuk Si + 1 dosis N, P, K rekomendasi; ¾ dosis pupuk Si + 1 dosis pupuk N, P, K; 1 dosis pupuk Si + 1 dosis pupuk N, P, K; 1 ¼ dosis pupuk Si + 1 dosis pupuk N, P, K; 1 ½ dosis pupuk Si + 1 dosis pupuk N, P, K; dan 1 ¾ dosis pupuk Si + 1 dosis pupuk N, P, K. Hasil percobaan menunjukkan bahwa perlakuan 1 ½ dosis pupuk Si + 1 dosis pupuk N, P, K mampu memberikan pengaruh terbaik dalam meningkatkan kandungan Si tanah dan meningkatkan hasil panen tanaman jagung manis.
Co-Authors Emma Trinurani Sofyan Ilma Agnia Maya Preva Biantary Oviyanti Mulyani