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The Effect of Dolomite and NPK Slow Release Fertilizer on Physiological and Growth of Sweet Corn (Zea mays saccharata Sturt) on Peatlands 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 | Full PDF (312.227 KB) | 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.
Population Of Bacteria In Soil Dystrudepts Under Oil Palm In The Application Of Organic Mulch And Earthworm Juliarni Juliarni; Wawan Wawan; Delita Zul
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.v3i1.415

Abstract

Research on the effect of organic mulch and earthworms under oil palm plantation on the total population bacteria is still scarce. The study aims to analyze the effect of organich mulch, earthworm desity, and the interaction between organich mulch and earthworm density on the total population bacteria. The research was carried out in May – August 2019. This research was a 3 x 4 factorial experiment which was placed according to a Split Plot Design with the basic design of Randomized Block Design, each treatment was repeated 3 times. Organic mulch as the main plot are 3 type, namely: M1 (M. bracteata), M2 (oil palm empty fruit brunches/ OPEFB) and M3 (oil palm midrib). The density of earthworms as subplots consists of 4 levels, namely: C0 (0 worms/m2), C1 (35 worms/m2), C2 (50 worms/m2) and C3 (65 worms/m2). The data were analyzed using analysis of variance. If the treatment is significantly different, the treatment was tested by Duncan’s at 5% significance level. The results showed that oil palm midrib organic mulch can increase the total population of fungi and bacteria compared to M. bracteata and OPFEB. The earthworms density 50 and 65 worms/m2 can increase the total bacterial population compared to other earthworm densities. The combination of oil palm midrib with earthworms density 50 and 65 worms/m2 can increase the total population of bacteria
Phisycal And Chemical Properties And Nutrient Content (N, P, K, Mg, B, Cu And Zn ) In Oil Palm Leaf In Various Of Age After Compacting Eko Kurniawan; Nelvia Nelvia; Wawan Wawan
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 2 No 2 (2020): Vol 2 No 2 (2020): July. Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.227 KB) | DOI: 10.36378/juatika.v2i2.508

Abstract

Planting of oil palm in peatland has been limited by soil physical, chemical properties, and hydrology, that`s way needed improvement on those matters to increase the productivity of peat and oil palm in peat soil by compacting. The purpose of this compacting is to improve the soil's physical, chemical properties, and soil moisture. A sampling of soil, water, and leaf were done in consecutive block 5,4,3,2,1,0 year after compacting and of planting done 4 years 10 months, 3 years 9 months, 2 years 9 months, 1 year 10 months, 11 months and 2 months, control used in this trial are origin condition (forest). Increasing bulk density was found at compacting block with 30 cm depth from the surface with the lower in 2 years after compacting at 0.09 g/cm3 and highest 4 years after compacting 0.4 g/cm3. In-depth of 60 cm from surface was found no increasing the bulk density 3 years after compacting 0.0 g/cm3 and the highest on 5 years after compacting 0.3 g/cm3 compared to forest. Decreasing on permeability in-depth 30 cm at 4 years after compacting 7.47 cm/jam and close to forest permeability 51.11 cm/hour is 2 years 43.6 cm/hour. As represent rise capillary consistently water content ≥ 80% achieved at depth 20 cm of surfaces on all block. Compaction doesn't regard pH, C organic, basa's saturation, capacity exchange cation. On depth 30 cm P-total lower on s without compaction at 599.6 ppm and above 871.6 ppm on 5 yr than forest 585 ppm. P available most low 58.1 ppm happens on 4 yr afters is compacted and p available forest 53.9 ppm. Nutrient content B, Cu and Zn at soil not influenced by compaction. Fosfor (P) in water increases with added years after compaction lower at 39.1 mg/L in the block without compaction compare of forest that 40.8 mg/L. Leaf nutrient rate on compacted block on optimum until excess where N (2. 69 – 3.15 %) , P (0. 170 – 0.209 %) , K( 0. 952 – 1.11%) , Mg ( 0. 377 – 0.497%) , except on block without compacting K (0. 830 %) and Mg (0. 190%) at deficiency and 0 years afters compaction Mg leaf on level deficiency 0. 230%. Nutrient content of B, Cu and Zn at various level and not influenced by compacting.
Soil Chemical properties and Growth of Agarwood as an Intercropping in Palm Oil Land Plantations that Applied EFBPO Compost and Biochar Vema Rohmawati Khasanah; Nelvia Nelvia; Wawan Wawan
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 2 No 2 (2020): Vol 2 No 2 (2020): July. Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.192 KB) | DOI: 10.36378/juatika.v2i2.527

Abstract

The aim of this research was to studied the nature of soil chemistry and growth of agarwood (Aquilaria malaccensis) as an intercropping plant in palm oil land plantations that applied EFBPO compost and biochar. The study was conducted in Bukit Kemuning from May 2018 to December 2019. This study used randomized block design. The treatment is applied EFBPO compost and biochar with 7 levels, namely : without EFBPO compost and biochar, gived 0.5 kg EFBPO compost per a plant, gived 0.5 kg EFBPO biochar per a plant, mixed at dose 0.25 kg EFBPO compost and 0.25 kg EFBPO biochar per a plant, gived 1 kg EFBPO compost per a plant, gived 1 kg EFBPO biochar per a plant, mixed at dose 0.5 kg EFBPO compost and 0.5 kg EFBPO biochar per a plant. Each treetment was repeated 3 times. The observed parameters were soil chemical properties, chlorophyll content, plant height, number of branches, diameter of the stem and leaf area. The results showed that the provision of EFBPO compost or biochar at dose of 0.5 kg or 1 kg per a plant and mixed both at a dose of 0.25 kg and 0.25 kg or 0.5 kg and 0.5 kg per a plant to increase Organic C, P total, K total, KTK and decrease Al dd each 61.83%-102%, 17.18%, 28.04%-64.09%, 23.98% and 14.29%-57.14% compared to control. It also increases plant growth, such as increases plant height, number of branches, diameter of the stem, and leaf area, each 0.67%-56.72%, 5.50%-22.17%, 7.69%-52.88% and 5.73%-125% compared to control.
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.
The Physical Properties of Soil in Palm Oil Agroforetrial System (Elaeis Guineensis Jacq.) with Aloes (Aquilaria Malacensis Lamk.) and In Palm Oil Monoculture System Feri FA Agriani; Rendika Ranuda; Wawan Wawan; Nurul Qomar
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.v3i1.771

Abstract

Oil palm cultivation is generally carried out in monoculture. This has an impact on decreasing soil fertility, one of which is the physical properties of the soil. One of solutions that can be done to overcome this is the cultivation of oil palm plants with an agroforestry system. The purpose of this research was to compare the physical properties of soil agroforestry on oil palm (Elaeis gueneensis Jacq.) and aloes (Aquilaria malacensis Lamk.) with oil palm in monoculture. This research was conducted in Bukit Kemuning Village, Tapung Hulu District, Kampar Regency for 4 months from November – Februari 2020. Determination research the locations for agroforestry system and monoculture system using purposive sampling method. Soil samples were taken from 4 sampling point: palm circle, leaf frond piles, harvest path and aloes circle which were repeated 6 times on each land. The observation parameters are several soil physical properties (topsoil depth, bulk density, particle density, total pore space, moisture content, water holding capacity, permeability, infiltration, and soil resistance) and soil C-organic. Data from the observations of each parameter were analyzed statistically using the t test. The results showed that the agroforestry system increased C-organic content and improved selected soil physical properties (increase topsoil depth, total pore space, moisture content, water holding capacity, permeability, infiltration and decrease bulk density, particle density and soil resistance).
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.
Controlling Peat Soil Degradation In Oil Palm Plantations With Applications Mucuna Bracteata In Pt. Jatimjaya Perkasa M .Ridha Pahlipi; Wawan Wawan; Hapsoh Hapsoh
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 4 No 1 (2022): 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.v4i1.886

Abstract

Peatland degradation occurs because of the activities carried out on the land. This study aims to determine the effectiveness of Mucuna bracteata in controlling peat soil degradation in oil palm plantations and the effect of Mucuna bracteata age on peat soil degradation in oil palm plantations. This research was conducted by the survey method. The determination of the research location is done by a purposive sampling method. The type of location is peatland planted with oil palm and applied with Lagume Cover Crop Mucuna bracteata (LCC MB) without LCC MB aged 3, 4, and 5 years. Each location was studied with four replications. The soil physical properties and soil chemical properties (pH, C-organic, N-total, P-available, K-total, CaO, ash content, electrical conductivity, and redox potential) were measured. Peatland planted with oil palm and LCC MB applied was able to control the degradation of physical properties (air holding capacity and volume of weight) and chemical properties (ash content, N-total, P-available, K-total pH, and CaO) compared to those not applied. LCC MB. Peatland planted with oil palm and applied to LCC MB until the age of 3 years was able to control the chemical properties (P-available and K-total), but further increases in the age of LCC MB (4 and 5 years) were no longer effective in controlling the properties of the peat soil. Peatland planted with oil palm and applied to LCC MB was able to control the chemical properties (electrical conductivity and ash content), up to the age of 4 years, but a further increase in the age of LCC MB (5 years) was no longer effective in controlling the properties of the peat soil because it no longer experienced intensive growth.
Microclimate Characteristics On Oil Palm (Elaeis guineensis Jacq.) And Agarwood (Aquilaria malaccensis Lamrk.) Agroforestry System Budi Mulyono; Nurul Qomar; Wawan Wawan
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 4 No 1 (2022): 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.v4i1.1195

Abstract

In general, oil palm plants are cultivated using a monoculture system. The monoculture system is profitable from an economic perspective and harms the environment; one is the microclimate. One of the efforts to reduce the negative impact of the oil palm monoculture system is to apply the oil palm agroforestry system with agarwood. This research is conducted on smallholder oil palm plantations in Bukit Kemuning Village, Tapung Hulu Sub District, Kampar District, Riau Province. This research was conducted using a survey method, which was done by choosing a location intentionally. Determination of the research location using purposive sampling method, that is, on land found agroforestry systems of oil palm plants with agarwood and oil palm monoculture systems in the same location. Microclimate observations are carried out by measuring air temperature, air humidity, and sunlight intensity. Measurement of air temperature and humidity uses the Temperature and Humidity Data Logger, while the sunlight intensity measurement uses the Lux Meter Data Logger tool. Measurements are carried out one day a week for three months, for getting 12 times of data retrieval. The recording is carried out from 07.00 am to 05.00 pm, with 15 minutes intervals. Microclimate data on agroforestry and monoculture systems are analyzed in comparative descriptive analysis. Based on the results of the study, it is concluded that the microclimate in the agroforestry system of oil palm and agarwood was better than that of the oil palm monoculture system, where the light intensity and air temperature in the agroforestry system are lower than the monoculture system, and the humidity in the agroforestry system higher than the monoculture system. In general, oil palm plants are cultivated using a monoculture system. Monoculture system is profitable from an economic perspective, but also has a negative impact on the environment, one of which is the micro climate. One of the efforts to reduce the negative impact of the oil palm monoculture system is to apply the oil palm agroforestry system with gaharu. This research is conducted on smallholder oil palm plantations in Bukit Kemuning Village, Tapung Hulu Sub District, Kampar District, Riau Province. This research is conducted using a survey method. Determination of the research location using purposive sampling method, namely on land found agroforestry systems of oil palm plants with gaharu and oil palm monoculture systems in one stretch. Microclimate observations are carried out by measuring air temperature, air humidity, and sunlight intensity. Measurement of air temperature and humidity uses the Temperature and Humidity Data Logger, while the measurement of sunlight intensity uses the Lux Meter Data Logger tool. Measurements are carried out one day a week for 3 months, for getting 12 times of data retrieval. Recording is done at 07.00 am up to 05.00 pm with 15 minute intervals. Microclimate data on agroforestry and monoculture systems are analyzed in comparative descriptive analysis. Based on the results of the study, it is concluded that the microclimate in the agroforestry system of oil palm and gaharu was better than that of the oil palm monoculture system, where the light intensity and air temperature in the agroforestry system are lower than the monoculture system, and the humidity in the agroforestry system higher than the monoculture system
PERANAN PUPUK ORGANIK CAIR (POC) BONGGOL PISANG DALAM MENINGKATKAN PERTUMBUHAN DAN HASIL JAGUNG MANIS (Zea mays L. Saccharata Sturt.) Syarif Nizar Kartana; Eudoksia Fatmawati; wawan wawan
Publikasi Informasi Pertanian Vol 17, No 2 (2021): JURNAL PIPER
Publisher : Universitas Kapuas Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51826/piper.v17i2.535

Abstract

Jagung manis hingga kini dimanfaatkan oleh masyarakat dalam berbagai bentuk penyajian,seperti: tepung jagung (maizena), minyak jagung, bahan pangan, serta sebagai pakan ternak. Produksijagung manis di Kabupaten Sintang tahun 2019 masih tergolong rendah yaitu adalah sebesar 4,19ton/ha apabila dibandingkan dengan potensi hasilnya yang mencapain14-18 ton/ha. Salah satu penyebabrendahnya produksi tersebut dikarenakan kesuburan tanah yang rendah. Pemberian Pupuk OrganikCair (POC) dari bonggol pisang diharapkan dapat meningkatkan produksi tanaman jagung karenaselain mengandung berbagai unsur hara, bahan baku serta prsoses pembuatan POC dari bonggolpisang relatif mudah didapat dan dibuat. Tujuan penelitian ini adalah untuk mengetahui pengaruhPOC bonggol pisang terhadap pertumbuhan dan hasil jagung manis. Rancangan yang digunakandalam penelitian ini adalah Rancangan Acak Kelompok (RAK) dengan 5 taraf perlakuan dandiulang sebanyak 5 kali serta dilaksanakan di Desa Jerora I Kecamatan Sintang Kabupaten Sintangdari bulan Februari sampai Mei 2021. Hasil penelitian menunjukan bahwa pemberian POC bonggolpisang dapat meningkatkan pertumbuhan dan hasil jagung manis. Perlakuan terbaik dalammeningkatkan pertumbuhan dan hasil jagung manis adalah pemberian POC bonggol pisang sebanyak300 ml/liter air dengan rerata diameter batang 23,68 mm dan rerata berat tongkol 303.80 gram.