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Pengaruh Pemberian Pupuk Kandang Sapi dan Cacing Tanah terhadap Pertumbuhan dan Hasil Tanaman Kedelai (Glycine max (L.) Merril) Majid, Muhammad Win; Wardati, Wardati; Murniati, Murniati
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Soybean (Glycine max (L.) Merril) is one type of food that have a high nutrition, so many are consumed by the people. The needs of soybean in Indonesia each year has increased, while production of soybean in Indonesia is not enought to cover the needs of soybean in Indonesia. The study aim to know the influence of cow manure and earthworms as well as getting the best dose against and crop yield of soybean. This study was carried out the greenhouse of Unit Pelayanan Teknis (UPT), Faculty of Agriculture University of Riau. This study used a random complete design 2 factor and 3 replicates. The first factor is 4 dose of cow manure and the second factor is 2 level of earthworms. Result showed the cow manure 80 g/plant and earthworm 5 tail/plants shows better results among other treatment combination in increasing the ratio of headers and roots, dry weight of the plant, number of primary branches, number of pods perplant and the weight of the seed per plant. Cow manure 80 g/plant best in increasing the shoot and root ratio, diameter of stem, number of primary branches, number of pods per plant and the weight of the seed per plant. The weight of 100 seeds showed better on cow manure 40 g/plant and on a combination of cow manure 40 g/plant and earthworm 5 tail/plant. Use of earthworms did not improve growth and yield of soybean. 1Keywords : Soybean, cow manure, earthworm.

KERAGAMAN MAKROFAUNA TANAH DI BAWAH TEGAKAN TANAMAN KARET (Havea brasiliensis Muell. Arg) DI LAHAN GAMBUT YANG DITUMBUHI DAN TIDAK DITUMBUHI Mucuna bracteata Aria, Maya; Wawan, Wawan; Wardati, Wardati
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Peatlands in Indonesia is one of the natural resources that have the potential for development in the rubber plantation sector. Use of peatlands as a plantation must be managed well to keep it from damage, because peat has great benefits. One way to keep the peatland in order to avoid damage by growing a cover crop Mucuna bracteata.The purpose of this study was to knowing diversity of soil macrofauna and knowing the relationship between the girth of rubber plants that overgrown and not overgrown by Mucuna bracteata. This research has been conducted in areal life plant PT. RAPP Subdistricts Teluk Meranti, District Pelalawan, Riau and analysis soil macrofauna in Soil Laboratory, Faculty of Agriculture, University of Riau. Research was conducted from January until March 2016. Sampling in this research is a purposive sampling of 5% of the 20.4 ha (1.02 ha). The data obtained from the research and calculations such as total individual, family, population density, relative density and diversity of soil macrofauna analyzed descriptively and the data measuring the girth of rubber plants were statistically analyzed. The results showed that life mucuna has a diversity index, total individual, the number of species, population density and relative density greater than without mucuna and died mucuna. Average girth of rubber plants in life mucuna greater than compared to without mucuna and died mucuna.Keywords :Mucuna bracteata, rubber plants, peatlandand soil macrofaunaÂ

PENGARUH KEBAKARAN DAN WAKTU SETELAH TERBAKAR TERHADAP MAKROFAUNA TANAH GAMBUT DI KECAMATAN TELUK MERANTI KABUPATEN PELALAWAN Sugiarto, Sugiarto; Wawan, Wawan; Wardati, Wardati
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This study aimed to compare macrofauna of burnt and unburned peat soil and to know the effect of time increase after fire to macrofauna peat soil. This research was conducted by survey method, sampling for soil macrofauna data determined by purposive random sampling method that is by choosing the location in accordance with the purpose of research. The soil samples were taken on unburnt peatland, in peat a week after fires and in peat 4 months after fires with a capture area of 1 m x 1 m at a depth of up to 15 cm taken 6 samples so that there were 18 samples. The data obtained from the results of research and calculations are listed in table form. Then the data is analyzed statistically descriptive. The results of this study indicate the type and number of macrofauna individual soil on peat is not burned more than peat a week after the fire and, peat 4 months after the fire. Time-increasing effects on peat a week after a fire have increased the type and number of macrofauna because macrofauna proliferate in peat 4 months after the fire.Keywords:Macrofauna, Fire and Peat.

PENGAPLIKASIAN KOMPOS AMPAS TAHU DAN ENDAPAN EFFLUENT PADA TANAH ULTISOL UNTUK PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) DI PEMBIBITAN UTAMA Lukita, Andreas; Wardati, Wardati
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The research aims to determine the effect of tofu waste compost and effluent precipitate on the growth of oil palm seedlings (Elaeis guineensis Jacq.) and to determine the precise dose Ultisol soil in the main nursery. This research was conducted at the experimental station of Agriculture Faculty, University of Riau on February to May 2016. This research was arranged on using Completely Rendomized Design (CDR) with two factorial. Factor I is application of tofu waste compost : A0 (without tofu waste compost), A1 (10 tons/ha), A2 (20 tons/ha), A3 (30 tons/ha). Factor II is application effluent precipitate : E0 (without effluent precipitate), E1 (15 tons/ha), E2 (30 tons/ha), E3 (45 tons/ha) and replicated 3 times, so obtained 48 unit experiment. Parameter observed were the accretion of plant heigh, accretion of leaves number, accretion of stump diameter, root volume, root shoot ratio and dry weight. The result showed that giving tofu waste compost dose 10 tons/ha and effluent precipitate 45 tons/ha give the best effect on the growth of oil palm in main nursery. The giving tofu waste compost increase accretion of plant heigh, accretion of leaves number, root volume and dry weight with get the best dose 10 tons/ha. The giving effluent precipitate the increase accretion of leaves number, accretion of stump diameter, root volume and dry weight with get the best dose 45 tons/ha. Keywords: Oil palm seedling, Tofu waste compost, Effluent precipitate,Ultisol soil

Kelimpahan Mesofauna Tanah pada Tegakan Tanaman Karet (Havea brasiliensis Muell. Arg) di Tanah Gambut yang Ditumbuhi dan tidak Ditumbuhi Mucuna bracteata Purwanto, Eko; Wawan, Wawan; Wardati, Wardati
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This study aims to determine the abundance (type and amount) soil mesofauna and rubber tree growth (Havea brasiliensis Muell. Arg) in peat soil with different conditions of Mucuna bracteata. This research has been conducted in peat soil at social plantation area of PT. RAPP Teluk Meranti from January to March 2016. Analysis soil mesofauna and analysis soil carried out in the laboratory of soil science, Faculty of Agriculture, University of Riau. This research used purposive random sampling namely in rubber contained Mucuna bracteata life, Mucuna bracteata dead and without Mucuna bracteata. Determining the plant sample was randomly with diagonal method in order to get 5 rubber trees that are Mucuna bracteata life, 5 Mucuna bracteata dead and 5 without Mucuna bracteata. Data obtained from the calculation and interpretation of the data be stated in tables and analyzed statistically descriptive. The research show that in stands of rubber trees in the peat soil contained Mucuna bracteata life shows number of individual, family and population density (Kp) soil mesofauna is highest compared with Mucuna bracteata dead and without Mucuna bracteata. Abundance of soil mesofauna highest in rubber tree stands on peat soil which are Mucuna bracteata life dominated by the family Macrohelidae, Mucuna bracteata dead dominated by the family Macrohelidae and without Mucuna bracteata dominated by the family Hirudisomatidae. The rubber tree that is Mucuna bracteata life having the average circle stems is larger compared with Mucuna bracteta dead and without Mucuna bracteata. Keywords: soil mesofauna, rubber tree, peat soil and Mucuna bracteata

PENGARUH KOMBINASI ABU JANJANG KELAPA SAWIT DENGAN PUPUK UREA TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.) DI TANAH GAMBUT Kristian H, Kristian H; Wardati, Wardati; Rustam, Rusli
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The purpose of this research is to know the effect of the combination of oil palm bunch ash with urea fertilizer on the growth of cocoa seedlings (Theobroma cacao L.) in peat soil and to know the best dose. This research was conducted in experimental garden of Agricultural Faculty of University of Riau on December 2016 until March 2017. This research method used non factorial Complete Random Design (RAL) consisting of 6 treatments and 3 replications. The treatments consisted of 4 g AJKS + 0.5 g Urea, 4 g AJKS + 1 g Urea, 4 g AJKS + 2 g Urea, 8 g AJKS + 0.5 g Urea, 8 g AJKS + 1 g Urea and 8 g AJKS + 2 g Urea. Parameters observed were; plant height, number of leaves, stem diameter, leaf area, root volume, ratio root crown and dry weight of cocoa seedlings. The data obtained were analyzed statistically by using vocabulary and then tested further with DNMRT test at 5% level. The combination of AJKS with urea fertilizer in peat soil significantly affected the diameter of stem, root volume. However, the effect was not significant on plant height, number of leaves, stem diameter, leaf area, ratio root crown and dry weight of cocoa seedlings. The results of this study indicate that giving AJKS combination with urea fertilizer with dose 8 g AJKS + 2 g urea in peat soil produces the best growth of cocoa seedlings.Â Keywords : Oil palm bunch ash, Urea fertilizer, Peat soil, Cocoa

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