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Perkebunan dan Lahan Tropika
Published by Universitas Tanjungpura
ISSN : 20886381     EISSN : 26544180     DOI : http://dx.doi.org/10.26418/plt.v11i1.xxxxx
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Perkebunan dan Lahan Tropika bertujuan menjadi sarana penyampai informasi hasil penelitian, analisis kebijakan atau pemikiran-pemikiran baru di bidang perkebunan dan pengelolaan sumberdaya lahan tropika. Perkebunan dan Lahan Tropika mengundang peneliti dan penulis yang menggeluti topik-topik berikut: - Teknis budidaya tanaman perkebunan - Pengendalian OPT perkebunan - Inovasi teknologi perkebunan - Bioteknologi dan pemuliaan tanaman perkebunan - Penanganan hasil perkebunan - Penanganan dan pemanfaatan limbah perkebunan - Agribisnis/sosial ekonomi perkebunan - Pengelolaan sumber daya lahan tropika - Konservasi tanah dan air serta bahan dan agens hayati - Pengelolaan lingkungan perkebunan - Analisis kebijakan perkebunan
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 4 Documents
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Search results for , issue "Vol 9, No 1 (2019)" : 4 Documents clear
MODIFIKASI MEDIA ALTERNATIF DARI SAYURAN UNTUK ANALISIS KUANTITATIF PERTUMBUHAN MIKROORGANISME ASAL TANAH GAMBUT KALIMANTAN BARAT DENGAN METODE TPC Rezekikasari Rezekikasari; Rudi Harianto
Perkebunan dan Lahan Tropika Vol 9, No 1 (2019)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.697 KB) | DOI: 10.26418/plt.v9i1.37718

Abstract

Medium formulations for quantitative testing and isolation of microorganism from peat soils, require adequate nutrition. This needs to be supported by the type of substrate and incubation conditions that support each other. Isolation media used mostly though available, but the price is quite high. This is what underlies the need to find alternative sources of new substrates that can support the growth of microbes from peat soils. Some of these ingredients include, carrots, Gembili Bulbs, tomatoes, and pumpkin which are abundantly available in West Kalimantan. This study shows that the best substrate in isolation of bacteria and fungi from peat is Gembili Bulbs with a total colony of 26 x 105 (CFU / gr) and fungi of 10 x 105 (CFU / gr). Peat bacteria and fungus cannot grow on carrot and pumpkin substrate media as indicated by the absence of growing microbial colonies. The best formulation of microbial isolation media with Gembili Bulbs is also supported by the highest C / N ratio of 44.8.Key Words : Bacteria, Fungi, Quantitative, Pour Plate Methode, TPC
FLUKS CO2 MALAM HARI PADA PERKEBUNAN KELAPA SAWIT DI LAHAN GAMBUT Ahmad Subuh; Evi Gusmayanti; Muhammad Pramulya
Perkebunan dan Lahan Tropika Vol 9, No 1 (2019)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v9i1.37719

Abstract

The use of peat land for the development of oil palm plantations is considered to have a negative impact on the environment based on the release of CO2 emissions. Some of the results of the study show that emissions measurements using a closed hood method with a measurement duration of 2-4 minutes that takes place during the day. The aim of this study was to measure CO2 flux at night on oil palm plantation areas of 9 years and 10 years in peatlands and to analyze the relationship of CO2 flux at night in oil palm plantations on peat with Temperature Soil, Groundwater Face, Water Content Gravimetric, Soil pH, and Eh Soil. Location this research was carried out on the oil palm plantation area of PT. Sintang Raya. The location of the research plot is located in the village of Olak-olak Kubu, Kubu District, Kubu Raya Regency, West Kalimantan in July 2018 until October 2018. Measurements were made using vaisala with CO2 sensors namely InfraRed Gas Analyzer (vaisala) and conducted for ≤4 minutes per plot. This measurement is carried out in the afternoon until the morning and is repeated every 4 hours at 18.00, 22.00, 02.00 and 06.00. The measurement of CO2 flux is done once a week starting from August to September. The results showed that nighttime CO2 flux in oil palm plants on peatland was between 0.27 g CO2 m-2 hours-1 to 0.34 g CO2 m-2 hours-1 or equivalent to 26.86 tons CO2 ha-1 year-1 to 29.74 tons CO2 ha-1 year-1. Differences in levels of organic matterand ash content between peatlands in TM 6 and TM 7 did not cause significant differences in CO2 flux values between the two locations. Variation in the time of measurement of real estate at night, but does not affect real changes in flux values. This is related to the level of organic matter, ash content, and also the temperature associated with CO2 flux, including other factors that also determine the amount of nighttime CO2 flux on peatland.Keywords: CO2 Flux, Measurement Time, Plant Age.
PEMANFAATAN KOMPOS TANDAN KOSONG KELAPA SAWIT (TKKS) DENGAN BAKTERI SELULOLITIK DAN LIGOLITIK SERTA NPK TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.) Isna Rahma Dini; Idwar Idwar; Amir Franky Simamora
Perkebunan dan Lahan Tropika Vol 9, No 1 (2019)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v9i1.37720

Abstract

Cocoa (Theobroma cacao L.) is one of the large plantations after oil palm. The increase in cocoa nursery can be accompanied by the utilization of waste derived from palm oil, namely oil palm empty fruit bunches (OPEFB). OPEFB can be useful as organic fertilizer because it can improve soil physical, chemical and biological properties. The use of OPEFB as organic fertilizer will also reduce excessive use of NPK. Utilization of OPEFB into organic fertilizer can be in the form of compost or raw OPEFB organic matter plus cellulolytic and lignolytic microbes. This study aims to determine the effect of NPK fertilizer and OPEFB compost on the growth of cocoa seedlings. This research was conducted experimentally using a completely randomized design (CRD) consisting of 9 treatments and 3 replications. Parameters of observation were plant height, stem diameter, number of leaves, root canopy ratio, dry weight of seedlings and age of planting. The results showed that the provision of 100 g/polybag OPEFB compost plus 50% NPK fertilizer (2 g / polybag) could provide good growth in cocoa seeds (Theobroma cacao L.).Keyword : Cocoa, compost, cellulolytic bacteria, lignolytic bacteria, OPEFB
KERAGAMAN FUNGI MIKORIZA ARBUSKULAR (FMA) DARI BEBERAPA VEGETASI LAHAN GAMBUT Nizari Muhtarom; Iwan Sasli; Fadjar Rianto
Perkebunan dan Lahan Tropika Vol 9, No 1 (2019)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v9i1.37721

Abstract

The West Kalimantan land is mostly dominated by marginal peat land types. The West Kalimantan peat swamp land has a very low pH, low nutrient availability, low base saturation, high nutrient washing rates, and even some of them are sandy soil which is in the lower layers. One way to utilize peat marginal land as an agricultural crop is by utilizing Arbuscular Mycorrhizal Fungi (FMA) as biological fertilizer inoculums. The stages of the research are the exploration of FMA from several root zone plants from two locations, Galang and Rasau Jaya Villages, then identification of FMA in the plant disease laboratory of Tanjungpura University's Faculty of Agriculture. The study was carried out for ± 3 months. The design used is by using purposive sampling method, with the number of sample points on three commodities, namely pineapple, fern and grass, each of 9 sample points. The results showed an analysis of the content of the number of FMA spores found in the highest root rooting zone found in the source of pineapple inoculums, with the number of FMA spores found as many as 96, with soil samples each of 50 g samples. Whereas the fern media amounted to 55, and the grass media amounted to 22. The highest level of FMA diversity was found in the treatment with the source of pineapple inoculum from Galang, with the discovery of three types of FMA namely genus Glomus sp, Gigaspora sp and Acaulospora sp. Keywords: arbuscular mycorrhizal fungi (AMF), exploration, marginal peat soi

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