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PERTUMBUHAN TINGGI DAN DIAMETER TANAMAN JATI SALOMON (Tectona grandis Linn.f.) UMUR 11 TAHUN DI DESA TANAH MERAH Herijanto Thamrin
JURNAL AGRIMENT Vol 4 No 01 (2019): Juni 2019
Publisher : Politeknik Pertanian Negeri Samarinda

The purpose of this study was to grow the height and diameter of the Solomon Teak tree (Tectona grandis) planted in 2006 on Samarinda-Bontang Street, Tanah Merah Village, North Samarinda District. The results of this study were able to provide information about the growth of Teak Solomon's height and diameter at that location and as input for the development of Solomon Teak plants, especially in East Kalimantan.The research method used is a simple random method to get 100 trees to be studied. Selected trees measured their height and diameter then analyzed with simple statistics.Based on the results of calculations, data analysis and discussion, it can be concluded that the growth of the average height and diameter of the Salomon Teak Jalan Poros Samarinda - Bontang is equal to 17.621 m for height and an average diameter of 19.246 cm. Growth is better than ordinary teak species (Perhutani) located in East Kutai. It is recommended for young teak plants to be maintained more intensively so that the adaptation process will quickly occur and minimize competition. Another factor that needs to be considered is doing mixcropping with annual plants considering the width of the spacing used

EVALUASI KEBERHASILAN PENANAMAN TANAMAN SENGON (Paraserianthes falcataria (L) I.C. Nielsen) dan TREMBESI (Samanea saman (Jacq.) Merr) PADA LAHAN BEKAS TAMBANG Herijanto Thamrin
JURNAL AGRIMENT Vol 2 No 1 (2017): Juni 2017
Publisher : Politeknik Pertanian Negeri Samarinda

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Penelitian ini bertujuan untuk mengetahui keberhasilan tumbuh tanaman Sengon (Paraserianthes falcataria) dan tanaman Trembesi (Samanea saman) yang digabung penanamannya pada lahan bekas tambang yang dikelola oleh PT. Bumiku Jadi Abadi (PT BJA) di Desa Separi Kecamatan Tenggarong Seberang Kabupaten Kutai Kertanegara. Hasil penelitian ini diharapkan memberikan informasi tentang tingkat keberhasilan tumbuh tanaman sengon (Paraserianthes falcataria) yang digabung dengan Trembesi (Samanea saman) pada lahan bekas tambang, sehingga dapat digunakan sebagai salah satu bahan pertimbangan untuk budidaya sengon (Paraserianthes falcataria) dan Trembesi (Samanea Saman) pada lahan bekas tambang. Metode penelitian yang digunakan adalah dengan membuat plot pengamatan seluas 1 Ha pada areal tanaman yang berumur 4 bulan dengan jarak tanam 4 x 4 m. tanaman di dalam plot pengamatan diamati semuanya, kemudian dihitung jumlah yang mati dan diidentifikasi penyebab kematiannya. Data hasil pengamatan dihitung dengan penggunakan rumus persen tumbuh. Berdasarkan hasil analisis dan pembahasan, didapatkan bahwa tanaman sengon dan trembesi yang ditanam bersama-sama menunjukan hasil yang baik (persentase hidup lebih besar dari 80 %), namun bila dilihat dari segi pertumbuhannya, maka tanaman sengon memperlihatkan pertumbuhan yang lebih baik.

PERTUMBUHAN DIAMATER DAN TINGGI TANAMAN KAPUR (Dryobalanops aromatica Gaerth) BERUMUR 10 TAHUN DI KEBUN RAYA UNMUL SAMARINDA Herijanto Thamrin
JURNAL AGRIMENT Vol 3 No 1 (2018): Juni 2018
Publisher : Politeknik Pertanian Negeri Samarinda

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Tujuan dari penelitian ini adalah untuk mengetahui pertumbuhan tinggi dan diameter pohon kapur (Dryobalanops aromatica Gaerth) yang berumur 13 di Kebun Raya Unmul Samarinda (KRUS). Adapun hasil yang diharapkan dari penelitian ini adalah agar dapat memberikan salah satu pertimbangan pengelolaan kepada para pihak dalam pengembangan tanaman kapur (Dryobalanops aromatica Gaerth) umur 13 tahun khususnya di Kalimantan Timur. Metode penelitian yang digunakan adalah dengan cara metode simple random sampling. Metode sampling salah satu teknik pengambilan sampel adalah pengambilan sampel acak sederhana yang digunakan untuk memilih sampel dari populasi. Semua pohon di areal penelitian diberi nomor seluruhnya (227 pohon) kemudian diundi sebanyak 100 pohon sebagai sampel yang diamati. Pohon-pohon yang terpilih diukur diameter dan tingginya. Hasil pengukuran dioleh secara deskriptif dan statistik sederhana. Berdasarkan hasil analisis dan pembahasan, maka dapat ditarik kesimpulan pertumbuhan tanaman kapur (Dryobalanops aromatica.Gaertn) bervariasi besar baik untuk diameter maupun tinggi, hal ini disebabkan sebagian tanaman ternaungi (tumbuh di bawah naungan) akibat penyiapan lahan dengan sistem jalur dan jarak tanam yang lebar bisa mengotimalkan pertumbuhan diameter tanaman. Adapun saran yang diberikan adalah apabila tanaman kapur (Dryobalanops aromatica.Gaertn) diperuntukkan produksi kayunya maka perlu ada tindakan silvikultur terutama penjarangan. Namun apabila tujuan penanamannya adalah untuk perkayaan jenis maka juga diperlukan penjarangan ringan agar tanaman kapur seluruhnya bisa mendapatkan sinar matahari.

KELEMBABAN UDARA DENGAN ALAT HUMYDIMETER PADA LAHAN SAWAH DI KELURAHAN TANAH MERAH Furqaan Hamsyani; Herijanto Thamrin; Nurul Asiyah
JURNAL AGRIMENT Vol 6 No 2 (2021): Desember 2021
Publisher : Politeknik Pertanian Negeri Samarinda

Humidity is the concentration of water vapor in the air. In agriculture, air humidity is associated with increased productivity and development of cultivated plants, humidity in the environment where it grows can determine the selection of appropriate plant species, the purpose of this study was to determine air humidity in paddy fields between April, May , and June, changes in air humidity at any time describe the water vapor content in the air can be expressed as absolute humidity, relative or vapor pressure deficit, relative humidity compares the actual water vapor content/pressure with its saturation state or the air's capacity to accommodate water vapor. The relationship between air humidity in paddy fields in Tanah Merah Village is relatively low, this is the impact of changes in temperature, quantity and quality of radiation, wind movement, air pressure, vegetation, and availability of water and productivity of irrigated ricefields

KELEMBABAN UDARA DENGAN ALAT HUMYDIMETER PADA LAHAN SAWAH DI KELURAHAN TANAH MERAH Furqaan Hamsyani; Herijanto Thamrin; Nurul Asiyah
JURNAL AGRIMENT Vol. 6 No. 2 (2021): Desember 2021
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v6i2.585

Humidity is the concentration of water vapor in the air. In agriculture, air humidity is associated with increased productivity and development of cultivated plants, humidity in the environment where it grows can determine the selection of appropriate plant species, the purpose of this study was to determine air humidity in paddy fields between April, May , and June, changes in air humidity at any time describe the water vapor content in the air can be expressed as absolute humidity, relative or vapor pressure deficit, relative humidity compares the actual water vapor content/pressure with its saturation state or the air's capacity to accommodate water vapor. The relationship between air humidity in paddy fields in Tanah Merah Village is relatively low, this is the impact of changes in temperature, quantity and quality of radiation, wind movement, air pressure, vegetation, and availability of water and productivity of irrigated ricefields

Effect of Scarification with Shallot (Allium cepa L. var. ascalonicum) Extract on Percentage and Germination Rate of Cat's Eye Seeds (Dimocarpus longan var. malesianus Leenh) Elisa Herawati; Herijanto Thamrin; Agustina murniyati; Suwarto Suwarto; M. Fadjeri
JURNAL AGRIMENT Vol. 10 No. 2 (2025): Desember 2025
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v10i2.3515

Food security is a global challenge due to the heavy reliance on staple food commodities. Diversifying food sources based on local tropical plants is one of the key strategies to address this issue. The mata kucing fruit (Dimocarpus longan var. malesianus Leenh.), an endemic plant of Kalimantan, has the potential to be developed as an alternative food source. This study aimed to determine the effect of seed soaking duration in red onion (Allium cepa L. var. ascalonicum) extract on the germination percentage and rate of D. longan var. malesianus. A Completely Randomized Design (CRD) with a single factor was used, consisting of four treatments (P0, P1, P2, and P3) with 30 replications for each treatment. This study shows a positive biological response to scarification treatment with shallot extract (P1, P2, P3) on the percentage and rate of germination of Dimocarpus longan var. malesianus seeds compared to the control (P0). However, the results of the ANOVA analysis show that the differences between treatments are not statistically significant. These findings indicate that the duration of immersion and the concentration of shallot extract used in this study have not yet reached the optimal level to produce a significant increase in germination effectiveness. Keywords: sDimocarpus longan var. malesianus, shallot extract (Allium cepa L.), germination percentage, germination rate

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