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Amrul Khoiri
Jurusan Agroteknologi, Fakultas Pertanian, Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Physics Social Sciences Other

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PENGGUNAAN BAHAN PENYIMPAN AIRDAN VOLUME PEMBERIAN AIR TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensisJacq.)DI MAIN NURSERY Martha K, Henni; Khoiri, M. Amrul
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 2 (2015): Wisuda Oktober 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

This study aims to determine the effect of the storage material and the volume of irrigation water on the growth of oil palm seedlings in the Main Nursery and have been implemented in the Technical Implementation Unit of the Faculty of Agriculture, University of Riau from June to October 2014. The study used completely randomized design (CRD) with two factorial factors and three replications. The first factor is the use of water-storage material (A), which consists of 4 levels: A0: Without the use of water-retaining material A1: Hydrogel 25 g / 10 kg soil, A2: Cocopeat 500 g / 10 kg soil, A3: Trunk bananas 50 g / 10 kg of the ground and the second factor is the volume of irrigation (V), which consists of three levels, namely: V1: 1 liter / day / bib it V2: 1.5 liters / day / seed V3: 2 liters / day / seed. The results showed the use of water storage material and the volume of water giving no real effect on seedling height increase, in the number of leaves, wrap accretion hump, dry weight of seed and seedling quality indices but significant effect on the ratio of the root crown. Hydrogel combination of 25 g / 10 kg soil and water provision volume 1 liters / day / seed tends to further increase in the number of leaves, wrap accretion hump seed, seedling dry weight, and seed quality index, while the combination of cocopeat 500 g / 10 kg soil and volume the provision of water 2 liters / day / seed tends to further increase the high accretion canopy ratios of seed and seedling roots. The growth of oil palm seedlings tend to be better with the use of water storage hydrogel material and cocopeat. The growth of oil palm seedlings tend to be better than the entire treatment volume of water provision.   Keywords: Palm oil, water-retaining materials, water  
UJI PENGGUNAAN SLUDGE LIMBAH KELAPA SAWIT TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.) PADA MEDIUM SUBSOIL DYSTRUDEPTS Sidabutar, Pradianto; ', Wardati; Khoiri, M. Amrul
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 2 (2015): Wisuda Oktober 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This research aims to determine the effect of sludge palm oil waste on the growth of cocoa seedling (Theobroma cacao L.) on medium subsoil Dystrudepts and get the best dose. This research was conducted in October 2014 until January 2015 in the experimental station on the Faculty of Agriculture, University of Riau, Bina Widya Campus Km 12.5 Simpang Baru Village, Tampan District, Pekanbaru. This research was conducted by using a completely randomized design (CRD) with 6 treatments and 3 replications. The treatments sludge palm oil waste are: S0 = 0 g/polybag, S1 = 50 g/polybag, S2 = 100 g/polybag, S3 = 150 g/polybag, S4 = 200 g/polybag and S5 = 250 g/polybag. Parameters measured were seedling height, stum circle, number of leaves, leaf area widest, root volume, the shoot root ratio and seedling dry weight. The results of research that using of sludge palm oil waste dose of 200 g/polybag to 250 g/polybag on medium subsoil Dystrudepts showed growth of cocoa seedling is best that indicated of increase the seedling height, stum circle, number of leaves, leaf area widest, root volume, the shoot root ratio and seedling dry weight. Keywords: Cocoa seedling, sludge palm oil waste, medium subsoil.
STUDI MUTU BUAH KELAPA SAWIT (Elaeis guineensis Jacq.) PADA BERBAGAI UMUR TANAMAN DI LAHAN GAMBUT Prayogi, Akhlul; ', Adiwirman; Khoiri, M Amrul
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 1 (2016): Wisuda Februari 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The purpose of this research is to determine the relationship of the best quality oil palm at the different age of plants in peatlands. The method used in this research is the survey method using diagonal sampling 5% of the land area in order to obtain 27 plants of all plants ages (6, 7 and 9 years old). The data analyzed were fresh weight, dry weight, volume of fruit, thick mesocarp, water capacity, oil return and free fatty acid of oil palm. Data were analyzed using the t test and correlation at the 5% level. The results showed the age of the plant affects the weight of fresh fruit, fruit, dry weight and the volume of oil palm fruits, but did not affect the mesocarp thickness, the water capacity of fruit, oil content and free fatty acid of oil palm fruit. Based on the quality standards of oil palm fruits PTPN V (2007) in this study, plant with age 6, 7 and 9 years old have bad fruit, water capacity, good oil yield fruit and free fatty acid with medium quality of fruit. Keywords: age, oil palm, peatlands, quality
Pertumbuhan Bibit Kopi Robusta (Coffea canephora Pierre) dengan Pemberian Beberapa Jenis Kompos Ali, Muhammad; Khoiri, M. Amrul; Rachim, Kamalia
Jurnal Agro Teknologi Tropika Vol 4, No 1 (2015)
Publisher : Jurnal Agro Teknologi Tropika

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The quality of seedling determines the growth and the productivity of plants in the field seedling. Optimum growthof seedling can be obtained through good nursery system. The physical, chemical and biological properties of nurserymedium can be improved by application of organic fertilizer, such as compost. This study aims to the effect of severaltypes of compost and get best compost dosage in inducing seedlings of Robusta coffee (Coffea canephora Pierre).Research has been conducted experimentally using a completely randomized design (CRD) with 5 treatments and 3replications. Each experimental unit consisted of 3 seedlings where 2 seedlings taken as sample. Data were analyzedstatistically using analysis of variance and means were tested by Duncan’s New Multiple Range Test at 5% level.Parameters observed were the increase of plant height (cm), the leaf number, leaf area, stem circle (cm) and the ratio ofthe root crown. The results indicated that the application of some compost affected the increase of seedling height, theleaf number and leaf area. Trichokompos gave the better seedling height and leaf number comparing to other compost.
Uji Formulasi Pupuk Hayati Tepung Berbahan Aktif Bacillus sp. pada Bibit Karet (Hevea brasiliensis) Stum Mini Khoiri, M. Amrul; Puspita, Fifi; Rumapea, Denny Swardi
Jurnal Agro Teknologi Tropika Vol 4, No 2 (2015)
Publisher : Jurnal Agro Teknologi Tropika

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Rubber plants (Hevea brasiliensis) is a important crop plantations in Indonesia and because contributor offoreign exchange after oil palm. The study aimed to examine the effect of bio-fertilizer formulations powder containactive Bacillus sp. and get the best formulations on the growth of rubber seedlings (Hevea brasiliensis) mini stumb. Theresearch was conducted at the Laboratory of Plant Pathology Faculty of Agriculture and the technical implementationunit of agriculture faculty of Riau University, in December 2014 until May 2015. The methods of research is experimentallywith using completely randomized design (CRD) with 5 treatments and 4 replications. The data were analyzed statisticallywith using analysis of variance and followed by Duncan’s New Multiple Range Test at level á = 5%. The parametersmeasured were increase of seedling height increment, stem circumference, in the number of leaves, the ratio of crownroots and dry weight. The results of the research showing aplication formulations of Bacillus sp. were tested hassignificant effect on seedling height increment and the number of leaves but not real effect on stem circumference, theratio of crown roots and dry weight. Formulations Bacillus sp. with material peat is the best formulation to influenceseedling height increment and the number of leaves seed rubber mini stumb.
Pola Perubahahan Beberapa Sifat Morfologis dan Fisiologis Buah Kelapa Sawit Harahap, Lukman Syaidy; Rasyad, Aslim; Isnaini, Isnaini; Khoiri, Muhammad Amrul
Jurnal Agro Teknologi Tropika Vol 5, No 2 (2016)
Publisher : Jurnal Agro Teknologi Tropika

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Abstract

This study attempted  to determine the change of  morphological and  physiological traits of fruit palm oil during the fruit development until harvest. Forty eight fruit bunchs which antheses at the same day were selected at random from oil palm trees in the Experimental Station of PT Panca Surya Garden at Kubang Raya, Kampar. The fruit bunches were hand pollinated at 18 April 2015 and each was covered by pollination bag. Starting at 30 days after pollination (DAP), 3 fruits bunches were harvested at 15 day interval until fruits were ready to harvest. The change of morphological and physiological traits were observed  such as fresh weight, dry weight, fruit moisture content, thickness of mesocarp, fruit diameter, fruit volume and fruit color. The data analysis were performed by simple regression assingned day after pollination as independent variable and the traits observed as dependent variables.  The results indicated that change in morphological traits such as mesocarp thickness, fruit volume, fruit diameter occurred in similar pattern. Rapid change of  the value appeared from 30 to 75 DAP, followed by very slow increased from 75 to 150 DAP and finally the  rapid increase from 150 to 180 DAP. The pattern of dry weight and fresh weight change was similar, in which progressive increase was occurred  from 30 to 180 DAP then followed by decreased until 187 DAP. Moisture concentration of the fruit increased slightly from 30 to 45 DAP than decreased progressively from 45 to 187 DAP. Fruit color changed from dark purple to red purple and finally at harvest the color change to yellow red.
Efek Pemberian Pupuk Anorganik NPKMg Dan Pupuk Organik Super K Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq) Umur 7 – 13 Bulan Noviyanti, Fauli; Khoiri, M. Amrul; Yoseva, Sri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This study aims to determine the effect of giving inorganic fertilizer NPKMg and organic super K fertilizer and to get the best combination dose of inorganic fertilizer NPKMg and organic super K fertilizer on the growth of oil palm seedlings at the age of 7 months. This research was conducted for 6 months starting from October 2020 to April 2021. Using a factorial Completely Randomized Design (CRD). The first factor is inorganic fertilizer NPKMg with 2 levels, namely A1: 7.5 g per polybag, A2: 10 g per polybag. The second factor is super K organic fertilizer with 3 levels, namely K1 : 6.25 g per polybag, K2 : 12.5 g per polybag, K3 : 18.75 g per polybag. Parameters observed were plant height, number of midribs, leaf width, leaf length and bulb circumference. The data obtained were analyzed statistically using analysis of variance and further tested with Duncan's New Multiple Range Test (DNMRT) level 5% using the SPSS application. The results showed that the application of inorganic fertilizer NPKMg 10 g per polybag was able to increase the growth of oil palm seedlings in the main nursery. Application of organic fertilizer super K 12.5 g per polybag was able to increase the growth of oil palm seedlings. The combination of inorganic fertilizer NPKMg 10 g per polybag and organic fertilizer super K 12.5 g per polybag gave the best results for the growth of oil palm seedlings.Keywords: NPKMg inorganic fertilizer, super K organic fertilizer, oil palm seedlings
UJI BERBAGAI UKURAN BULBIL DAN DOSIS DOLOMIT TERHADAP PERTUMBUHAN PORANG (Amorphophallus muelleri Blume.) PADA MEDIA GAMBUT Yudira, Muhammad; Hamzah, Anthony; Khoiri, M. Amrul
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Porang (Amorphophallus muelleri Blume.) is one of the plants that has the potential to be cultivated on peatlands. The limited number of seeds and fertile land that is decreasing indicates that efforts need to be made to increased the production and productivity of porang. This research aimed to increase the growth of porang on peat media for 6 months after planting by using bulbil size with dolomite. This research was conducted in the Technical Management Unit of Experimental Gardens, Faculty of Agriculture, Riau University from October 2020 to April 2021. This study was 4x3 factorial experiment arranged according to completely randomized design. The first factor was bulbil size which consists of four levels, (at 5,0 g-7,5 g; >7,5 g-10 g; >10 g-12,5 g; >12,5 g-15.0 g) and the second factor dose of dolomite consists of three levels, (at 2,5 ton.ha-1; 5,0 ton.ha-1; 7,5 ton.ha-1). Parameters observed were growth power, plant height, stem diameter, canopy width, rachis length, number of leaves, number of leaflets, and number of bulbil formed. Based on the results of the study, it was shown that porang has the potential to be developed in Riau Province, because it is able to adapted well to peat soils. The use of bulbil size 12,5-15,0 g and dolomite at a dose of 7,5 ton.ha-1 showed a better response to the growth of porang plants than other treatments. The results showed that the application of dolomite can improve some of the chemical properties of peat soil. Keywords : Bulbil, Dolomite, Porang, Peat 
PENGARUH PUPUK MAJEMUK NPKMg DAN PUPUK ORGANIK SUPER K PADA PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI MAIN NURSERY Setiawan, M. Guna; Khoiri, M. Amrul; Yoseva, Sri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

 1This study aims to determine the effect of applying NPKMg compound fertilizer and super K organic fertilizer and to get the best combination for the growth of oil palm seedlings in the main nursery, which was held from October 2020 to April 2021 in Sekijang Village, Tapung Hilir District, Kampar Regency. This research was conducted experimentally using a factorial Completely Randomized Design (CRD). The first factor is NPKMg compound fertilizer with 2 levels, namely A1: 7.5 g per polybag, A2: 10 g per polybag. The second factor is super K organic fertilizer with 3 levels, namely O1 : 6.25 g per polybag, O2 : 12.5 g per polybag, O3 : 18.75 g per polybag. Parameters observed were hump circumference, root wet weight, root dry weight, canopy wet weight, and canopy dry weight. The data obtained were analyzed statistically using analysis of variance and further tested with Duncan's multiple distance test at a level of 5% using the SPSS application. The results showed that the application of 10 g NPKMg compound fertilizer per polybag was able to increase the growth of oil palm seedlings in the main nursery. The application of super K organic fertilizer at the level of 12.5 g per polybag was able to increase the growth of oil palm seedlings. The combination of NPKMg compound fertilizer with a level of 10 g per polybag and organic super K fertilizer with a level of 12.5 g per polybag gave the best results for the growth of oil palm seedlings. Keywords:NPKMg compound fertilizer,organic super K fertilizer, oil palm seedlings
The Effect of Tofu Dregs Compost and NPK Fertilizer the Growth and Production of Purple Eggplan (Solanum melongena L.) Yulia, Arnis EN; Khoiri, M. Amrul; Yoseva, Sri; Nuraida, Nuraida
Jurnal Natur Indonesia Vol 20, No 1 (2022): April 2022
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.20.1.15-23

Abstract

The research was aimed to see the effect interaction of giving tofu dregs compost and npk fertilizer to get the right dose towards growth and the highest production of purple eggplant. The research was conducted at Experimental Garden, Faculty of Agriculture, Riau University, Pekanbaru. The research was conducted for 5 months, from february to june 2020. The reasearch was conducted experimentally in 2 factors. The first factor was the of tofu waste compost consists of 3 levels (0, 10 and 20 ton.ha-1). The second factor was the of NPK fertilizer (0, 100 and 150 kg.ha-1) which consist  of nine treatments combination. The observed parameterswere  the height of the plant (cm),  the days of flowering (days), the days of harvesting (days), the  fruit length (cm), the fruit diameter (cm), the number of fruits per plant (fruit), the fruit weight per fruit (g), the fruit weight per plant (g) and the fruit weight with plot (g). The data  in this research was analyzed in using variance and followed by Duncan's multiple distance test at 5% level.  The results showed that tofu waste compost and NPK fertilizer increased the growth of eggplant such as  the height of the plant,  the days of flowering, the days of harvesting, the number of fruits per plant, the fruit length, the fruit weight per fruit, the fruit weight per plant and the fruit weight with plot and does not increase fruit diameter. The giving tofu waste compost at a dose  20 ton.ha-1  and NPK fertilizer 150 kg.ha-1  gave the best eggplant growth and production until the plants were 90 DAP
Co-Authors ', Adiwirman ', Sampoerno ', Wardati ', wawan Abdi Firmansyah Adi Candra Irawan Adi Candra Irawan, Adi Candra Adnan Kasri Agus Winarsih Ahmad Alwi Azhari Ahmad Imtaz Sumbari Ahmad Rifai Akhlul Prayogi, Akhlul Al Ikhsan Amri Alfiansyah ' Aminuyati Andreas F Aditya Andrian Perdana Angelina Novita Silaban Angga Pramana Anthony Hamzah Anthony Hamzah Ardian ' Ardian Ardian Ardian Ardian Ardian Ardian Armaini ' Arman Effendi Arnadi Gunawan Arnis En Yulia Arnis En Yulia Aslim Rasyad Azharil Kalam Azizah Putri Fahira Azzahrah, Nabillah Barus, Rizki Al Khairi Besri Nasrul Bonar Maruli Purba Charis Suganda Cucu Suherman Daniel Simangunsong Datik Lestari Dedi Mulyadi Delta Nervi Warni, Delta Nervi Desita Salbiah Deviona Dwi Arini Edison Anom Efrata, Enriski Eko Wahyudi Elza Zuhry Erlida Ariani Evi Sribudiani Exfan Mafror Fariz Satya Fardan Fawrin, Heralda Fetmi Silvina Fifi Puspita Frengki H Napitupulu Gian Juliano Gugun Paqta Gulat Medali Emas Manurung Gunawan ' Gusviani, Annisa Azzahra Habibah, Puan Hamidi, M. Rasyid Hamidi, Rasyid Hapsoh Harahap, Lukman Syaidy Hasim, Ridwan Hasim Hendra Pangondian Sihaan Henni Martha K, Henni Heralda Fawrin Heralda Fawrin Huesean, Ahmad Idwar Ika Septina Sembiring Indradewa, Rhian Indriati Meilina Sari Ira Herawati Ira Herawati, Ira Irfandri Jajang Sauman Hamdani Jali, , M. Ridho Joni Irawan Joni Irawan, Joni Kevin Renaldi Listiawan Khairil Fahmi Laksono Trisnantoro Leny Husin Leo Noza A M. Joehari Jamili M. Yogi Riyantama Isjoni Masruri, Niskan Walid Mei Simtalia Meki Herlon Metananda, Arya A. MUHAMMAD ALI Muhammad Ali Muhammad Ali Muhammad Azmi Muhammad Ilham Muhammad Wildan Ar-Rosyad Muhammad Yudira Muntazar, Mhd Roqi Mustaqim Mustaqim, Mustaqim Nanang Tri Ardianto Nanda Satria Nelvia Nisa Azzahra Gusviani Nofri Sandria Novarina Rianti, Novarina Novi, Malinda Noviyanti, Fauli Nur Asiah Nur Suhada, Nur Nuraida Nuraida Nuraida Nuraida Nurbaiti ' Nurbaiti Nurbaiti Nurbaiti Nurbaiti Nurhayati Nurhayati Nurhidayah, T. Nursiani Lubis Pajri Ananta Yudha Panji Romadhan Petrus Candranius Situmorang Pradianto Sidabutar, Pradianto Pratiwi, Annisa Hasta Purwasandi Purwasandi Purwasandi, Purwasandi Putri Ayu Handayani Qory Fadillah Cahya Rachim, Kamalia Rahmatika, Alfi Raliandi Nadeak Riadhos Sholikhin Richart Hutabarat Rika Yeli Novita Riko Irawan Riskia Trizayuni Roy Ibrahim Rumapea, Denny Swardi Ruminta Ruminta Sabto Bintoro Sampoerno ' Sampoerno Sampoerno Sampurno ' Sanjungi firman Irwanda Sapitri Sapitri, Sapitri Sartika Eka Putri Setiawan, M. Guna Sigalingging, Govand Simatupang, Freddy Alexander Sinaga, Elfia Lasmaida Siska Evriyanti Lubis Sri Sri Yoseva Sudarso ' Suhariyono ' Sukatin, Sukatin Sukemi Indra Saputra Sulistiowati, Siti Intan Sutri Handayani Syafrinal Syafrinal, Syafrinal Syukri Syaputra Tengku Nurhidayah TRI WULANDARI Trizayuni, Riska Ugei Ramahendra Al-Faith Via Permata Sari Wardati ' Wawan ' Wawan Wawan Wikastian Ade Saputra Wulandari, Chicha Yeni Etma Nazar Yudira, Muhammad Yulius Gae Lada Yulius Gae Lada Zafitra Zulhamid Ridho