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Journal : Pastura

KAJIAN PARTIAL BAKTERI PENAMBAT NITROGEN NON SIMBIOTIK ASAL RHIZOSFER TANAMAN GAMAL SEBAGAI PLANT GROWTH PROMOTING PADA LAHAN SISTEM TIGA STRATA PECATU N.G.K. Roni; S.A. Lindawati
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 7 No 2 (2018): Pastura Vol. 7 No. 2 Tahun 2018
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1199.538 KB) | DOI: 10.24843/Pastura.2018.v07.i02.p05

Abstract

Gamal is one of the tropical forages that can still grow and produce f on dry land in the hot season, while other plants, especially the grass has dried so it needs to be examined soil conditions in the rhizosphere. A study aimed at studying soil conditions in rhizosphere of gamal plants and obtaining isolates of non symbiotic nitrogen-fixing bacteria from gamal rhizosphere that function as Plant Growth Promoting on three strata land (STS) Pecatu, Bukit jimbaran, Badung, Bali. The research begins with observation of soil texture and color, soil structure determination and water content, pH, and soil total plate count, followed by calculation of non-symbiotic N fixing bacteria,, isolation, gram staining test, fermnetatif test, and catalase test. The results showed that soil characteristics of STS Pecatu land include clay clay texture, compact structure, brownish color, pH 6.79-7.40, water content 14,19-18,12, STS Pecatu land including fertile land with total plate count 1.65x 107 cfu/g, and 6 non-symbiotic non-beneficial bacterial inhibitors were suspected from the genus Azotobacter sp, with colonies of 83 x 105 cfu/g. Based on the result of the research, it can be concluded that the soil of STS Pecatu land including fertile land with total plate count 16,5 x 106 cfu/g, and found 6 isolate of non-symbiotic N fixing bacteria from genus Azotobacter sp, with number of colony 83 x 105 cfu/g. Keywords: Non-symbiotic N-fixing bacteria, Three-Strata System, Pecatu
GROWTH AND YIELD OF DWARF ELEPHANT GRASS (Pennisetum purpureum cv. Mott) GIVEN SOME DOSAGE OF LIQUID FERTILIZER COMBINATION OF DRAGON FRUIT WASTE AND BIOURINE Rachmanto Effendy; A. A. A. S. Trisnadewi; N. G. K. Roni
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 11 No 1 (2021): Pastura Vol. 11 No. 1 Tahun 2021
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/Pastura.2021.v11.i01.p05

Abstract

Penelitian bertujuan untuk mengetahui pertumbuhan dan hasil rumput gajah kate (Pennisetum purpureumcv. Mott) yang diberi beberapa dosis pupuk cair kombinasi limbah buah naga dan biourin. Penelitian dilakukandi Rumah Kaca, Stasiun Penelitian Sesetan, Fakultas Peternakan, Universitas Udayana. Penelitian berlangsungselama 8 minggu, menggunakan rancangan acak lengkap (RAL) dengan enam perlakuan dan lima ulangan sehingga terdapat 30 unit percobaan. Perlakuan yang diberikan adalah dosis pupuk cair kombinasi limbah buah naga dan biourin yang terdiri atas 0 l ha-1, 2500 l ha-1, 5000 l ha, 10000 l ha-1, 12500 l ha-1. Variabel yang diamati yaitu variabel pertumbuhan, variabel hasil dan variabel karakteristik tumbuh tanaman. Hasil penelitian menunjukkan bahwa pupuk cair kombinasi limbah buah naga dan biourin dapat meningkatkan variabel pertumbuhan yaitu pada tinggi tanaman, variabel hasil yaitu berat kering batang, berat kering akar, dan berat kering total hijauan, serta variabel karakteristik tumbuh yaitu nisbah berat kering daun dengan berat kering batang dan luas daun per pot. Berdasarkan hasil penelitian dapat disimpulkan bahwa pemberian pupuk cair kombinasi limbah buah naga dan biourin dapat meningkatkan pertumbuhan dan hasil rumput gajah kate (Pennisetum purpureum cv. Mott) dan dosis 12500 l ha-1 memberikan pertumbuhan dan hasil terbaik. Kata kunci: biourin, dosis, limbah buah naga, pupuk cair, rumput gajah kate
POPULASI BAKTERI PENAMBAT NITROGEN DAN KARAKTERISTIK TANAH PADA RHIZOSFER TANAMAN PAKAN LEGUMINOSA DAN RUMPUT DI LAHAN KERING PADA MUSIM HUJAN Wulandari F; S. A. Lindawati; N. G. K. Roni
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 8 No 2 (2019): Pastura Vol. 8 No. 2 Tahun 2019
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (669.071 KB) | DOI: 10.24843/Pastura.2019.v08.i02.p04

Abstract

Forage as the main feed for ruminants needs to be considered for availability throughout the year. Factors that influence the availability of forage for feed throughout the year are the influence of the season, the condition of the land, and the presence of soil microorganism. One of the important soil microorganism is nitrogen fixing bacteria (N). This study aimed to determine the population of nitrogen fixing bacteria and soil characteristics in the rhizosphere of legumes and grass at dry land in rainy season. The study was conducted at the Research Station of the Faculty of Animal Husbandry, Udayana University, Pengotan Village, Bangli Regency, followed by a sample analysis at the Animal Production and Microbiology Technology Laboratory, Faculty of Animal Husbandry and the Laboratory of Soil Science, Faculty of Agriculture, Udayana University for 3 months. The design used was a completely randomized design consisting of 5 treatments and 4 replications. The five treatments were non rhizosphere (NR), Gliricidia sepium rhizosphere (RG), Stylosanthes guianensis rhizosphere (RS), Brachiaria decumbens rhizosphere (RB), and Pennisetum purpureum rhizosphere (RP). The variables observed in this study are the population of N-fixing bacteria, N elements, soil acidity (pH), soil temperature, and soil texture. The data obtained from this study were analyzed using annova, if there were significant differences (P<0.05) the analysis was continued by Duncan’s multiple range test. The results showed that the population of N-fixing bacteria, N elements, and soil texture were not significantly different, while the acidity (pH) and soil temperature were significantly different influenced by the rhizosphere of the plant. Based on the results of the study it can be concluded that the population of N fixing bacteria, N elements, and soil texture was not affected by the rhizosphere of the plant, the acidity (pH) of the soil decreases in all rhizosphere of plants, while the soil of temperature increases in Gliricidia sepium and Pennisetum purpureum rhizosphere. Key words: nitrogen fixing bacteria, soil characteristics, rhizosphere
PENGARUH JARAK TANAM DAN DOSIS BIO-URIN TERHADAP PERTUMBUHAN DAN HASIL RUMPUT Panicum maximum PADA PEMOTONGAN KETIGA Kusumawati N.N.C.; N.M. Witariadi; I K.M. Budiasa; I G. Suranjaya; N.G.K. Roni
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 6 No 2 (2017): Pastura Vol. 6 No. 2 Tahun 2017
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (691.083 KB) | DOI: 10.24843/Pastura.2017.v06.i02.p05

Abstract

Tujuan penelitian ini adalah untuk mengetahui terjadi interaksi antara perlakuan jarak tanam dan dosis bio urin pada pemotongan ketiga serta, bagaimana pertumbuhan rumput dan hasil hijauan rumput Panicum maximum pada pemotongan ketiga.Percobaan ini, dirancang dengan rancangan acak kelompok (RAK) faktorial, dua faktor dengan tiga ulangan. Dosis pupuk bio urin yaitu 0, 3.750 l ha-1, 7.500 l ha-1 dan 11.250 l ha-1 adalah faktor pertama, sedangkan jarak tanam 10 cm x 20 cm, 20 cm x 20 cm, 40 cm x 20 cm adalah faktor kedua. Hasil percobaan menunjukkan bahwa interaksi jarak tanam dan dosis bio urin berpengaruh nyata (P<0,05) terhadap pertumbuhan rumput Panicum maximum pada variabel tinggi tanaman dan jumlah anakan. Jarak tanam dan dosis pupuk bio urin berpengaruh nyata (P<0,05) terhadap hasil rumput Panicum maximum pada variabel berat kering stabel, daun, batang, bunga, nisbah daun batang dan berat kering total hijauan. Hasil berat kering hijauan yang paling baik pada jarak tanam J1 (10 cm x 20 cm) dengan dosis bio urin D2 (7.500 l ha-1) pada pemotongan ketiga. Kesimpulan dari penelitian ini adalah Terjadi interaksi antara jarak tanam dengan dosis bio urin terhadap pertumbuhan dan hasil rumput Panicum maximum pada pemotongan ketiga dengan hasil paling baik pada jarak tanam J1 dengan dosis bio urin D2 dengan total hasil hijauan 7,90 ton ha-1 pada pemotongan ketiga. Kata kunci: jarak tanam, bio urin, Panicum maximum
PERTUMBUHAN KEMBALI DAN PRODUKSI BEBERAPA JENIS RUMPUT YANG DIBERI PUPUK ORGANIK N.G.K. Roni; N.M. Witariadi; N.W. Siti; I.G. Suranjaya
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 5 No 2 (2016): Pastura Vol. 5 No. 2 Tahun 2016
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.343 KB) | DOI: 10.24843/Pastura.2016.v05.i02.p05

Abstract

Production, quality and availability of forage one of which is determined by soil fertility and soil health. The use of chemical fertilizers (inorganic) in a period of time is one of the causes of land degradation (Kartini, 2007), application of organic fertilizers is the right step in maintaining soil fertility and soil health, and reduce the negative impact of the use of inorganic fertilizers. The study aimed to evaluate the response of regrowth and production of several species of grass to organic fertilizer conducted in a greenhouse using a completely randomized design split plot pattern 3 x 4 with three replications. The first factor (main plot / main plot) is a type of grass is Panicum maximum var. trichoglume (R1), Setaria splendida (R2), and Pennisetum purpureum (R3); The second factor (sub-plot / subplot) is a type of organic fertilizer that is without fertilizer (P0), manure (P1), compost (P2), and vermicompost (P3). The results showed that there was no interaction effect between type of grass with the type of organic fertilizer on the regrowth and production of grass Panicum maximum var. trichoglume, Setaria splendida, and Pennisetum purpureum. Treatment types of grass significant (P <0.05) on all observed variables, while the treatment of organic fertilizers only significant (P <0.05) in the variable number of tillers, number of leaves, stem dry weight, total dry weight of forage and leaf area per pot. Based on the results of this study concluded that there was no interaction effect between type of grass with organic fertilizer. The three types of grass have different productivity, highest growth in grass with vermicompost fertilizer and highest production in grass with compost fertilizer.Key words: Organic fertilizers, panicum grass, Setaria grass, elephant grass
PEMANFAATAN BAKTERI PELARUT FOSFAT UNTUK MENINGKATKAN PRODUKTIVITAS KUDZU TROPIKA (Pueraria phaseoloides Benth.) N. G. K Roni; N.M. Witariadi; N.N Candraasih K.; N. W Siti
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 3 No 1
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.397 KB) | DOI: 10.24843/Pastura.2013.v03.i01.p04

Abstract

Phosphorus (P) is one of the essential nutrients for plants that availability is strongly influenced by soil pH. In acid soils, most of the P is given will form insoluble compounds and is not available to plants. Phosphate solubilizing bacteria is a soil microorganism that can improve the provision ofP in acid soils. The study aimed to determine the effect of Phosphate solubilizing bacteria on the productivity of tropical kudzu was conducted using a completely randomized design with four treatments ie without isolate (I0), standard isolate (I1), isolate B.80.1649-1 (I2) and isolate B.80.1649-8 (I3), each treatment was repeated four times. The results showed that both isolates were isolated and selection were able to increase the length of the plants, number of leaves, shoot dry weight, root dry weight, shoot P content,  N uptake, P uptake, and production of crude protein of tropical kudzu (Pueraria phaseoloides Benth.). The ability of isolates B.80.1649-1 higher than isolates B.80.1649-8, and comparable with standard isolate.
PRODUKTIVITAS TANAMAN GAMAL (Gliricidia sepium) DAN INDIGOFERA (Indigofera zollingeriana) YANG DIBERI BERBAGAI DOSIS PUPUK BIOORGANIK Roni N. G. K.; S. A. Lindawati
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 8 No 2 (2019): Pastura Vol. 8 No. 2 Tahun 2019
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.649 KB) | DOI: 10.24843/Pastura.2019.v08.i02.p09

Abstract

This study aims to obtain a study of the productivity of Gliricidia sepium and Indigofera zollingeriana plants which are given various dosage of bioorganic fertilizer. This study used a completely randomized design of factorial patterns of two factors: the first factor was the type of plant (G = Gamal; I = Indigofera) and the second factor was the dosage of bioorganic fertilizer: D0 = without fertilizer; D1 = 5 tons ha-1; D2 = 10 tons ha-1; D3 = 15 tons ha-1; D4 = 20 tons ha-1; D5 = 25 tons ha-1; and D6 = 30 tons ha-1, so there are 14 treatment combinations. Each treatment was repeated three times so that it consisted of 42 experimental units. The variables observed were plant height, leaf number, stem diameter, leaf dry weight, stem dry weight, total herbage dry weight, amount of chlorophyll, ratio of dry weight of leaf / stems, and leaf area per pot. The results showed that the productivity of Indigofera zollingeriana significant higher than Gliricidia sepium. The application of bioorganic fertilizer significantly increased plant height, leaf number, dry weight leaf, stem dry weight, total forage dry weight, amount of chlorophyll, and leaf area per pot, and the highest yield at 30 tons/ha. Based on the results of the study it can be concluded that the productivity of Indigofera zollingeriana is higher than Gliricidia sepium, bioorganic fertilizer increased plant productivity with the highest yield at 30 tons ha-1, and interaction only occurs in the leaf area per pot. Keywords: Indigofera zollingeriana, Gliricidia sepium, dosage of fertilizer, bioorganic fertilizer
PRODUKSI DAN KARAKTERISTIK KACANG PINTO YANG DIBERI PUPUK KANDANG SAPI DAN MIKORIZA Roni N.G.K.; N.N.C. Kusumawati; N.M. Witariadi; S.A. Lindawati; N.W. Siti
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 6 No 2 (2017): Pastura Vol. 6 No. 2 Tahun 2017
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (677.617 KB) | DOI: 10.24843/Pastura.2017.v06.i02.p11

Abstract

Penelitian yang bertujuan untuk mengetahui produksi dan karakteristik kacang pinto (Arachis pintoi) yang diberi pupuk kandang sapi dan mikoriza serta kombinasinya dilakukan di rumah kaca menggunakan Rancangan Acak Lengkap pola factorial dua faktor. Faktor pertama adalah dosis pupuk kandang sapi (tanpa,10 ton/ha, 20 ton/ha dan 30 ton/ha). Faktor kedua adalah dosis mikoriza yaitu (tanpa, 10 g/pot, 20 g/pot dan 30 g/pot), dengan tiga kali ulangan. Hasil penelitian menunjukkan bahwa terjadi pengaruh nyata (P<0,05) interaksi antara pupuk kandang sapi dan mikoriza pada peubah kolonisasi akar. Perlakuan pupuk kandang sapi berpengaruh nyata (P<0,05) pada peubah berat kering batang, berat kering daun, berat kering akar, berat kering tajuk, dan jumlah bintil akar. Perlakuan mikoriza berpengaruh nyata (P<0,05) pada peubah kolonisasi akar. Berdasarkan hasil penelitian dapat disimpulkan bahwa interaksi antara perlakuan pupuk hayati mikoriza dengan pupuk kandang sapi berpengaruh pada peubah kolonisasi akar, perlakuan pupuk kandang sapi dosis 20 ton/ha meningkatkan berat kering daun, batang, tajuk, akar dan jumlah bintil akar sama dengan dosis 30 ton/ha, dan perlakuan pupuk hayati mikoriza dosis 20 g/pot menghasilkan kolonisasi akar paling tinggi. Kata kunci: Pupuk kandang sapi, mikoriza, kacang pinto (Arachis pintoi)
PRODUCTION AND IN VITRO DIGESTIBILITY OF INTEGRATION Stenophrum secundatum GRASS WITH VARIOUS LEGUMINOSA IN COCONUT FARM N. N. C. Kusumawati; T. G. O. Susila; N. M. Witariadi; N. G. K. Roni; N. N. Yastini
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 9 No 2 (2020): Pastura Vol. 9 No. 2 Tahun 2020
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.702 KB) | DOI: 10.24843/Pastura.2020.v09.i02.p05

Abstract

Penelitian ini dilaksanakan untuk mendapatkan kombinasi terbaik Penanaman rumput Stenotaphrumsecundatum dengan beberapa leguminosa di perkebunan kelapa Pekutatan Jembrana. Rancangan yangdipakai adalah rancangan acak lengkap (RAL) dengan lima kombinasi perlakuan yaitu leguminosa Arachispintoi cv. Amarillo, Arachis sp. 93483, Desmodium ovalipolium CIAT 13089, Desmodium heterocarponCIAT 1311 dan Teramnus labialis masing-masing diintegrasikan dengan rumput S. secundatum Vanuatudengan 3 ulangan. Hasil penelitian menunjukkan produksi bahan kering hijauan pada pemotongan ketigatertinggi pada kombinasi S. secundatum Vanuatu dengan A. pintoi cv. Amarillo yaitu 51,36 g/m nyata lebihtinggi (P<0,05) dari perlakuan lainnya. Produksi hijauan terendah pada campuran S. secundatum Vanuatudengan T. labialis yaitu 29,39 g/m2. Komposisi botani didominasi oleh rumput dan mengalami pluktuasimeningkat pada pemotongan kedua dan menurun pada pemotongan ketiga. Imbangan rumput leguminosayang proporsional adalah campuran S. secundatum Vanuatu dengan Arachis sp. 93483 dan dengan Arachispintoi cv. Amarillo masing-masing 79,45% : 17,69% dan 82,53% : 15, 59% pada pemotongan ketiga. Hasilkoefisien cerna bahan kering dan bahan organik pada pemotongan ketiga tertinggi pada kombinasi S.secundatum Vanuatu dengan A. pintoi cv. Amarillo yaitu 63.56% dan 70,65%. Berdasarkan hasil penelitiandapat disimpulkan bahwa tanaman kombinasi S. secundatum Vanuatu dengan leguminosa yang mempunyairhizoma dan stolon kuat (tumbuh merayap) mempunyai produksi dan kecernaan lebih tinggi dari padakombinasi dengan perakarannya dangkal dan tumbuh melilit (keatas). Kombinasi rumput S. SecundatumVanuatu dan leguminosa A. pintoi cv. Amarillo dan Arachis sp. 93483 cocok dikembangkan di kebun kelapa. Kata kunci: asosiasi, rumput, leguminosa, perkebunan kelapa
RESPON TANAMAN GAMAL (Gliricidia sepium) DAN INDIGOFERA (Indigofera zollingeriana) TERHADAP PEMBERIAN PUPUK ANORGANIK DAN ORGANIK Roni N.G.K.; S.A. Lindawati
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 8 No 1 (2018): Pastura Vol. 8 No. 1 Tahun 2018
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.456 KB) | DOI: 10.24843/Pastura.2018.v08.i01.p08

Abstract

The productivity of forage depends on the availability of nutrients in the soil where it is grown, so fertilization to replace harvested produce is absolutely necessary. This study aims to study the response of gamal and indigofera forage on application of inorganic and organic fertilizers. Research using a completely randomized design factorial pattern of two factors, the first factor is the type of plant (G = Gamal; I = Indigofera) and the second factor is the type of fertilizer (T = without Fertilizer; A = Inorganic fertilizer NPK; K = commercial organic fertilizer; O = conventional organic fertilizer; B = bioorganic fertilizer), repeated 4 times so that it consists of 40 experimental units. The variables observed were plant height, number of leaves, stem diameter, leaf dry weight, stem dry weight, total dry weight of leaves, ratio of dry weight of leaves/stems and leaf area per pot. The results showed that there was no interaction between plant species and types of fertilizer in influencing the response of gamal and indigofera plants. Plant species have a significant effect on stem diameter, while fertilizer types have a significant effect on plant height, leaf dry weight, total dry weight of leaves and leaf area per pot. Based on the results of the study it can be concluded that the response of gamal plants is similar to indigofera, all types of fertilizers can improve the response of plants and organic fertilizers produce the same crop response with inorganic fertilizers. Keywords: gamal, indigofera, inorganic fertilizer, organic fertilizer