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Idwar ' '
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Agriculture, Biological Sciences & Forestry

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PERTUMBUHAN BIBIT KOPI ARABIKA (Coffea arabica L.) DI MEDIUM GAMBUT PADA BERBAGAI TINGKAT NAUNGAN DAN DOSIS PUPUK NITROGEN Anita ' '; Gunawan ' Tabrani; Idwar ' '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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ABSTRACT The purpose of this research was to got of arabica coffee seedling growth better which although it is planted on peat medium by shading and Nitrogen fertilizer. This research was carried out at the experimental station, Faculty of Agriculture Riau University on Bina Widya Campus, Simpang Baru Sub-districs, Tampan Districs, Pekanbaru from October 2015 to Januari 2016. This research was done experimentally utilized split plot design based on completely randomized design. The main plot was shading. Which are: without shading, 25% shading, 50% shading and 75% shading. Sub-plot was Nitrogen Fertilization, were: without nitrogen, 9,8 g N/plant (200 kgN/ha) and 19,6 g N/plant (400 kgN/ha). Parameter observed are seedling height, number of leafs, diameter of stalk, root volume, dry weight seedling, leafs and root ratio, the leaf width. The results showed that shading could increase number of leafs, seedling dry weight and the leaf width. Nitrogen fertilizeron peat medium has showed negative effect on seedling height, the number of leaf, diameter of stalk, root volume and seedling dry weight of Arabica coffee seedling.   Keywords: arabica coffea seedling growth, peat medium, shading, nitrogen fertilizer
PENGARUH PUPUK HIJAU Azolla microphylla DAN NPK TERHADAP PERTUMBUHAN KELAPA SAWIT (Elaeis guineensis Jacq.) FASE MAIN NURSERY Robby ' Heriyanto; Idwar ' '; Erlida ' Ariani
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This study aims to determine the effect of the interaction and the single factor green manure, Azolla microphylla and NPK fertilizer on plant oil palm in the main nursery as well as getting the best dose. This research has been conducted in the experimental garden of Faculty of Agriculture, University of Riau in November 2015 to March 2016. The study was conducted experimentally using a completely randomized design (CRD) factorial, consisting of two factors and three replications. The first factor is Green manure Azolla Microphylla with 6 levels (0, 20, 40, 60, 80 and 100 / polybag) and the second factor is NPK fertilizer with 4 levels (0, 10, 20 and 30 g / polybag). The parameters measured were the increase of plant height, , in the number of leaves, stem diameter increase, root volume, dry weight, the uptake of N in the leaves and the leaves outbreak. The results were analyzed statistically using Analysis Of  Variance (ANOVA). The results of the analysis of the test manifold followed by Duncan's New Multiple Range Test (DNMRT) level of 5%. The results showed that administration of green manure, Azolla microphylla and NPK on oil palm seedlings no real effect on the increase of plant height, stem diameter increase, in the number of leaves root volume and dry wight . In morphology, palm trees aged 7 months treated green manure Azolla microphylla and NPK grow well, but development in general leaves only reached the stage of development bifurcate. Oil palm seedlings were given the green manure Azolla microphylla with a dose of 40 g / polybag and NPK at a dose of 10 g / polybag provide good seedling growth and nutrient uptake of N highest.   Keywords: Azolla microphylla, NPK fertilizer and oil palm seedlings  
PENGARUH JENIS KOMPOS TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt) Syafriliandi ' '; Murniati ' '; Idwar ' '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The research aims to determine the effect of type of compost, and know the kind of good compost for the growth and production of sweet corn (Zea mays saccharata Sturt). This research was conducted at the experimental farm of the Faculty of Agriculture, University of Riau in May to August 2015. This study used a completely randomized design (CRD), which consists of six treatments, each treatment was repeated 4 times to obtain 24 units of the experiment, while the treatment is given is Ko (without compost), K1 (10 ton / ha compost cassava peel), (10 tons / ha of compost PEFB), (10 tons / ha of rice straw compost), and (10 ton / ha maize straw compostg). Parameters measured were plant height, leaf length, leaf width, stem diameter, while the male flowers appear, while the female flowers appear, cob length, cob diameter, number of rows / ear, seed number / line, and the weight of variance followed cob.The reanlted by Duncan test New Multiple Range test at 5% level. The results showed that the administration of the various types of compost (cassava peel, PEFB, rice straw, water hyacinth and corn straw) significant effect on all parameters (plant height, leaf length, leaf width, stem diameter, time appears the male flowers, time appears flower female, cob length, cob diameter, heavy cob without husks, seed number per line and number of lines per cob) on the growth and yield of sweet corn. Giving compost cassava peel with a dose of 10 ton / ha gives better results on the growth and yield of sweet corn. It can be seen from all the parameters observed. Keywords: Sweet corn, compost (cassava peel, PEFB, rice straw, corn straw and water hyacinth)
Co-Authors Anita ' ' Erlida ' Ariani Gunawan ' Tabrani Murniati ' ' Robby ' Heriyanto Syafriliandi ' '