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Agroland : Jurnal Ilmu-Ilmu Pertanian
Published by Universitas Tadulako
ISSN : 0854641X     EISSN : 24077607     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agroland : jurnal Ilmu-ilmu pertanian diterbitkan 3 kali dalam satu tahun. Jurnal ini diterbitkan oleh Fakultas pertanian Universitas Tadulako dengan tujuan untuk meningkatkan kapasitas Dosen diLingkup Fakultas Pertanian dalam Bidang Penelitian dan sebagai penunjang dalam Tri Dharma Perguruan tinggi.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 20, No 3 (2013)" : 6 Documents clear
PENGARUH PEMBERIAN BOKASHI DAUN GAMAL (Gliricidia sepium) DAN DIAMETER AGREGAT TANAH TERHADAP PERUBAHAN SIFAT FISIKA TANAH DAN PERTUMBUHAN AWAL TANAMAN TOMAT (Lycopersicum esculentum Mill.) PADA ENTISOLS SIDERA Zaitun Zaitun; Uswah Hasanah; Abd. Rahman
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 20, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

Soil is a growing media for plant and living environment for soil micro dan macro organisms. Low soil fertility can become a limiting factor for plant growth and productivity. Soil fertility can be improved by adding organic materials such as bokashi.Another factor than can affect plant growth is soil aggregate diameter through its influence on various soil physical characteristics. The research objective was to determine the effect of gamal leaf bokashi (Gliricidia sepium)        and soil aggregate diameteron soil physical characteristics and early growth of tomato plant (Lycopersicum esculentum Mill.) in Entisols Sidera. The research was conducted from November to Desember 2013. Composite soil samples from 0-20 cm were taken from Sidera village Biromaru Sub District of Sigi District. The soil was sieved to obtain various aggregate diameter including       < 2 mm, 2-4 mm and 4-6 mm.The bokashi of gamal leaf was applied to the different soil aggregate diameter at a rate of 0, 30 t ha-1, 60 t ha-1. The research results showed no interaction effect of bokashi and soil aggregate diameter. The bokashi significantly reduced the bulk density to only 1,06 g cm-3 in 60 t ha-1 bokashi treatment. In contrast, the soil permeability significantly increased up to 26,18 cm h-1 and the water content at field capacity up to 22,02%. Shoot dry weight under 30 t ha-1 bokashi application was significantly higher than that under no bokashi added and that under 60 t ha-1 bokashi. Similar trend was also showed by dry root weight and total root length. Soil bulk density and water content at field capacity significantly and consistently reduced with larger soil aggregate diameter while soil permeability increased. Highest plant dry weight and total root length was found in 2-4 mm soil aggregate diameter treatment.                                                                                                                               Key Words : Aggregate diameter, bokashi, soil physical characteristics, and tomato growth.
PATOGENISITAS NEMATODA ENTOMOPATOGEN Steinernema spp. DAN Heterorhabditis spp. TERHADAP HAMA BAWANG MERAH Spodoptera exigua Hubner. M. Hasyam Ashari; Johanis Panggeso; Burhanuddin Nasir
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 20, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

The purpose of this study was to determine the pathogenicity (Lethal Concentrate = LC 50 value) of entomopathogenic Steinernema spp. and Heterorhabditis spp. nematodes against caterpillar pests of onion S. exiqua. This study was conducted during October to December 2013,  in the Pests and Plant Diseases Laboratory, Agriculture Faculty, Tadulako University of Palu. This researchused a Completely Randomized Design (CRD) in atwo factorial experiment. The factors were type of nematodes and concentration.  Each treatment was replicated three times, so that there were 24 experimental units. The nematodes used in this study were third in star nematodes. The concentration of the nematodes use dincluding 500 IJ per 4ml water (p1), 750 IJ per 4 ml water (p2), 1000 IJ per 4 ml water (p3)and 1250 IJ per 4 ml water (p4). The results showed that the mortality of S. exiqua larvae increases with rising nematod concentration. Highest mortality found during one day after application (DAA) to 6 DAA was under 1250 IJ (p4) so it is the most effective and efficient concentration to be implemented for controlling S. exiqua larvae. The estimated value of LC 50 using probit analysis is 425.64 IJ ml-1 water with the range of 244.77 to 740.16 IJ ml-1 water, in this case about 425- IJ ml-1 water is required to halve the number of the tested insects within     six days. Key Words : Heterorhabditis spp, pathogenicity. Spodoptera exiqua H., and Steinernema spp nematodes. 
PENGARUH BOKASI TITONIA (Titonia diversifolia) TERHADAP.. ......SERAPAN K (KALIUM) DAN PRODUKSI BAWANG MERAH ,... (Alium ascallonicum L.) VARIETAS LEMBAH PALU PADA ENTISOL GUNTARANO Dwiyulianto putra; Imam Wahyudi; Yosep Soge Pata’ dungan
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 20, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

An experiment was conducted to determine the effect of  Titonia bokashi on the changes in the level of potassium (K) up take and yield of shallot (Allium ascalonicum L.) grown on Entisol. The experiment was arranged in a Randomized Block Design (RBD) with the rates of bokashi includingno bokashi added (to), 10 t ha-1(t1), 20 t ha-1(t2), 30 t ha-1(t3), 40 t ha-1(t4), 50 t ha-1(t5), and 60 t ha-1(t6). Each treatment was replicated three times so that there were 21 experimental units.  The application of Titonia bokashi up to 60 t ha-1was proven to effectively increase soil C-organic, K-total, K-available, plant dry weight, plant K concentration, K uptake, fresh and dry weight of shallot bulbs of Lembah Palu variety. Highest potassium uptake (11.07g) and maximum dry weight of shallot bulbs per clump was achieved at the rate of 60 t ha-1. Key Words: Potassium, shallot, and Titonia bokashi.
DESKRIPSI MODAL SOSIAL MASYARAKAT DI DESA EKOWISATA TAMBAKSARI (Studi Kasus Desa Tambaksari, Kecamatan Purwodadi, Kabupaten Pasuruan, Jawa-Timur) Rukavina Baksh
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 20, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

The objective of the study was to descriptively determine the social capital of the community in the Tambaksari Village. There were as many as 170 people involved in the study. The data were then analyzed using descriptive statistics. The results showed that the local community of Desa Tambaksari agreed that networking and norms had been strongly implemented, while trust and paticipation were implemented at medium level in the development of ecotourism. Therefore, trust and participation need to be improved. Key Words: Ecotourism, social capital.
EKSPLORASI DAN SKRINNING BAKTERI PELARUT FOSFAT DARI KAWASAN TAMAN NASIONAL LORE LINDU Salapu Pagiu
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 20, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

Exploration of phospate solubizing bacteria (PSB) was carried out to know the population density and diversity of PSB in any rhizospore of vegetation in the area of Lore-Lindu National Park.      The Rhizospore sampling used meyhod of ‘Polar Institu-Bromophenol Blue (NBRI-BPB), Pikovskaya media and Tadulako-2 media. The result showed that 52 isolates of bacteria had been differentiated from 25 rhizospere sample with population density range between 19.0 and 192.5 (x104 cfu g-1), yellow and white of colony colors, and colony diameter between 1.5 mm and 3.5 mm. Screening these bacteria in NBRI-BPB media found 25 isolates classified as phospate solubizing bacteria based on clear zone showed in media. The diameter of clear zone range between 3.0 mm and 4.5 mm. Continuing tested of these 25 PSB isolates showed that seven isolates clustered as superior PSB based on their ability to solve tricalsium phospate in liquid Pikovskaya media with phospate concentration range between 671.5 and 895.7 (mg L-1+ media). These isolates also showed better viability with population density rangr between 87.5 and 142.0 (x106 cfu g-1) after 80 days inoculated in Tadulako-2 media. These seven isolates were SED-01, WUA-07, KAD-08, WAN-03, WAT-03, TAL-02, and ROM-05. Key Words : Exploration, NBRI-BPB, phospate solubizing bacteria, polar sampling plans, tadulako-2 media.
ANALISIS EFISIENSI PENGGUNAAN INPUT PRODUKSI USAHATANI PADI SAWAH DI DESA POLEGANYARA KECAMATAN PAMONA TIMUR KABUPATEN POSO Neni Hasrani T; Dance Tangkesalu
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 20, No 3 (2013)
Publisher : Universitas Tadulako

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Abstract

This study aims were to identify the use of production inputs and to determine the price efficiency of the wetland rice farming system in Poleganyara Village. This study was conducted from August to December 2013. The number of respondents was 31 people selected through simple random sampling.  Data collected was analyzed using Cobb-Douglas production function, income analysis and efficiency analysis. The research results showed that the inputs used had covered the cost spent.  The average income of the respondents was IDR 14,489,761.09 planting season-1 (PT) greater    than the total expenditure of IDR 6,683,795.22 PT-1 thus resulting in the benefit of IDR 7,805,965.87 PT-1 under land area size of 0.95 ha. All inputs used as independent variables (X) were both partially and simultaneously affected the dependent variable (Y) significantly at α level of 1%.  The efficiency analysis indicated that such variables as land area, seeds, and fertilizer were not yet efficient (tcal>ttab) while labor was already efficient. Key Words : Efficiency, income, and wetland rice.

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