Adiwirman Adiwirman
Unknown Affiliation

Published : 33 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 33 Documents
Search

The Effect of Dolomite and NPK Slow Release Fertilizer on Physiological and Growth of Sweet Corn (Zea mays saccharata Sturt) on Peatlands: Pengaruh Pemberian Dolomit Dan Npk Slow Release Fertilizer Terhadap Fisiologi Dan Pertumbuhan Jagung Manis (Zea Mays Saccharata Sturt) Pada Tanah Gambut Ika Septina BR Sembiring Septina BR Sembiring; Wawan Wawan; Adiwirman Adiwirman
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 2 No. 1 (2020): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 2 No.1, 2020
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v2i1.410

Abstract

Pemanfaatan gambut sebagai lahan pertanian dihadapkan dengan masalah kesuburan tanah rendah. Rendahnya kesuburan gambut dicirikan dengan pH masam, kejenuhan basa rendah, kapasitas tukar kation tinggi. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian dolomit dan jenis NPK slow release serta interaksi antara dolomit dengan NPK slow release terhadap fisiologi dan pertumbuhan jagung manis pada tanah gambut. Penelitian ini dilaksanakan pada bulan Agustus sampai Oktober 2018 di Unit Pelaksana Teknis Kebun Percobaan dan Laboratorium Tanah Fakultas Pertanian Universitas Riau. Penelitian ini dilaksanakan secara eksperimen dengan menggunakan Rancangan Acak Lengkap (RAL) factorial. Faktor pertama adalah dolomit yang terdiri dari 4 taraf (0 ton.ha-1, 2.5 ton.ha-1, 5 ton.ha-1, dan 7.5 ton.ha-1). Faktor kedua adalah NPK slow release yang terdiri dari 4 taraf (NPK mutiara tunggal, NPK 13:6:27:4+0,65B Mahkota B, NPK 13:6:27:4+0,65B Compound Hi-Kay Plus dan NPK 13:8:27:4 MgO Ztick). Hasil penelitian menunjukkan bahwa pemberian dolomit dan NPK slow release dapat meningkatkan fisiologi seperti kandungan klorofil dan pertumbuhan tanaman jagung manis yaitu tinggi tanaman, jumlah daun, volume akar, berat kering tanaman dan laju pertumbuhan tanaman. Interaksi antara dolomit 23.55 g per tabung dengan pupuk 30.25 N, 3.72 P, 12.56 g per tabung (NPK Ztick) slow release merupakan interaksi terbaik yang mampu meningkatan laju pertumbuhan tanaman 6.65 g/hari.
The Nitrogen Learing In Applicated Peatlands Low Slow Npk Fertilizers And Fertilizers And Their Effect On Growing Of Sweet Maize (Zea Mays Sacchararata Sturt) Rudi Yanto Sirait; Wawan Wawan; Adiwirman Adiwirman
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 3 No. 1 (2021): Volume 3 No.1 Januari 2021 Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v3i1.737

Abstract

Utilization of peat as agricultural land faced the problem of low soil fertility. Low soil fertility made nitrogen being leached easily. One solution to overcome Nitrogen leaching and efficiency fertilizer raising used dolomite and slow decompose fertilizers. This study aims to determine the effect of dolomite on Nitrogen element leaching in several types of NPK slow decompose applied for corn cultivation in peatland and determine the best dolomite dosage and NPK slow decompose with minimum Nitrogen leaching to optimum sweet corn plant growth in peatland. This research was conducted from August to October 2018 in the Experimental Garden Technical Implementation Unit and Soil Laboratory, Faculty of Agriculture, University of Riau. This research used experimentally and completely randomized design (CRD) factorial. The first factor is dolomite which consists of 4 levels (0 tons.ha-1, 2.5 tons.ha-1, 5 tons.ha-1, dan 7.5 tons.ha-1). The second is NPK slow decompose which consists of 4 levels (NPK single pearl, NPK 13: 6: 27: 4 + 0,65B Mahkota B, NPK 13: 6: 27: 4 + 0,65B Compound Plus Hi-Kay and NPK 13: 8: 27: 4 MgO Ztick). The results showed the administration of dolomite 23.55 g per tube and NPK slow decomposed could reduce Nitrogen leaching, improve physiology and growth of sweet corn plants. Provision of interaction between dolomite 5 ton.ha-1 with NPK slow decomposition (30.25 N, 3.72 P, 12.56 g per tube) produces the best interaction that can reduce the proportion of Nitrogen leaching and it can affects the increasing of plant growth.
Macrofaune Restoration In Peat One Year After Burning Muhamad Habibi Rachman; Adiwirman Adiwirman; Wawan Wawan
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 3 No. 2 (2021): Volume 3 No.2 July 2021
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v3i2.798

Abstract

Macrofauna data on post-fire peat soils have been documented in many literatures, but assessments of soil macrofauna recovery in peatlands after one and a half years after fires are scarce. The aim of this study was to evaluate the recovery of soil macrofauna in peatlands after one and a half years after fires. This research was conducted on peat land in PT.SSS Kuala Panduk Teluk Meranti District, Pelalawan Regency. This research was conducted by survey method. Determination of the location using the purposive sampling method, especially on peatlands after one and a half years after the fire and unburned peatlands. Based on peatland cover, 6 samples were taken, and 6 samples were taken from unburned peatland. Determination of the sampling point using a systematic method. Macrofauna observations included number of families, number of individuals, population density, and diversity index. The study of macrofauna recovery was carried out by t-test on macrofauna data on peatland fires and unburned peatlands. The results shown in peatlands after a year and a half of fires are macrofauna recovery.