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INDONESIA
Sains Tanah
Published by Universitas Sebelas Maret
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Sains Tanah adalah jurnal yang dikelola Program Studi Ilmu Tanah Fakultas Pertanian UNS Solo yang melibatkan Editor dan Mitra Bestari dari institusi atau lembaga yang terkait. Sains Tanah mempublikasikan hasil penelitian dan telaah dalam bidang Ilmu Tanah dan Agroklimatologi serta bidang-bidang lain yang berkaitan, meliputi: Fisika dan konservasi tanah, Kimia dan kesuburan tanah, Biologi tanah, Mineralogi klei, Keharaan tanaman, Pedogenesis, klasifikasi dan survei, Pemupukan, Reklamasi dan remidiasi tanah, Agroklimatologi, Lingkungan
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 12, No 2 (2015)" : 6 Documents clear
Improvement Soil Biology Characteristics of Paddy Field by System of Rice Intensification Widyatmani Sih Dewi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.475

Abstract

The aim of the research was to test the System of Rice Intensification (SRI) method in improving the biological properties of paddy soil. The indicators of improvement were measured by the number of earthworm feces (cast), and the population of some microbial and nutrient content in the cast. The experiments were performed by comparing the three methods, namely: (1) SRI, (2) semi-conventional, and (3) conventional, using Randomized Completely Block Design. Each treatment was repeated nine times. The experiments were performed in the paddy fields belonging to farmers in Sukoharjo, Central Java. The result showed that the SRI (application of 1 tons ha-1 of vermicompost + 50% of inorganic fertilizer dosage) tends to increase the number of earthworms cast. It is an indicator of earthworm activity in soil. Earthworms cast contains more phosphate solubilizing  bacteria (12.98 x 1010cfu) and N content (1.23%) compared to its surrounding soil. There is a close functional relation between earthworms cast with total tiller number. SRI method is better than the other two methods to improve the biological characteristics of paddy soil that has the potential to maintain the sustainability of soil productivity.
Land Surface Coverage, Main Vegetation and Physical Soil Characteristics of West Side of Lawu Mountain Rahayu Rahayu; Puguh Karyanto
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.248

Abstract

Sustainability of catchment area management of a mountain requeres identification the vegetation and condition of the major vegetation. This reserachs purpouse was characterizing major vegetation, coverage and  soil properties at 1000 m elevation sea level to the top of Lawu mountain. Survey was started by identification of every vegetation unit followed by taking soil sample that was analyzed in laboratory for identifying the properties. Sampling and  identification  conducted close by common climbing track line to the top, including Jogorogo and Cemoro Sewu East Java, and Cemoro Kandang and Sukuh Central java. Coverage of vegetation  used  sattellite immage landsad and was analyzed  by  Arview software. Results showed that intens and dense forest was 36,22% and the other was rare density forest. Major vegetation of Lawu mountain was Pinus (Pinus merkusii), Cemara (Casuarina equisatifolia), Tanganan (Schleptera sp), Akasia gunung (Acasia decurren), rumput vestuca, Cantigi (Vaccinium sp) kayu pasang (Lithocarpus pruinusa)  and vegetables on agriculture land. Every type of vegetation unit had different soil physycal properties of topsoil, while elevation had effect on soil bulk volume and porocity.
The Use of Banana Corm Extract and Phosphate Rock to Increase Available-P in Alfisol Slamet Minardi; Sri Hartati; Hery Widijanto; Defi Wulandari
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.240

Abstract

The aim of this research is to study the approprite formula and applied method of banana corm and phosphate rock on available-P in Alfisols. The research was arranged in factorial completely randomized design with 3 factors. The first factor is the dosage  of banana corm extract, which is consisted of: E1 = 100  ml of banana corm extract, E2 = 200 ml of banana corm extract, and E3 = 300 ml of banana corm extract. The second factor is the dosage of the phosphate rock which is consisted of B1 = 100 gr of  phosphate rock, B2 = 200 gr phosphate rock, and B3 = 300 gr of phosphate rock. The third factor is application method, which is consisted of M1 = directly applied  into the soil. M2 = incubated before applied into the soil. The observation of soil includes: soil pH, soil organic matter content, cation exchange capacity, total-N, total-P, available-P and the population of phosphate solubilizing bacteria. Result shows that available-P in the Alfisols is very low. The interaction amongs the treatment significantly affect the population of phosphate solubilizing bacteria. Banana corm extract and  phosphate rock applied directly into the soil increase soil pH.
Stimulate The Growth of Rice Using Endophytic Bacteria from Lowland Rice Plant Tissue Nuni Gofar; Hary Widjajanti; Neni Marlina
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.250

Abstract

Exploration and selection of endophytic bacteria from healthy food crops grown in lowland ecosystem is important to be conducted in order to get growth-stimulating endophytic bacteria at soil with low fertility level so that capable to optimize initial growth of food crops and subsequently can increase productivity level of lowland soil.The research objective was to isolate and to test the IAA-producing endophytic bacteria isolate in stimulating the rice crop growth at lowland area. Endophytic bacteria are isolated from tissues of rice, corn and peanut crops which grown at shallow swamp land in Ogan Ilir and Ogan Komering Ilir Districts, South Sumatra, Indonesia. There was nine isolates of nitrogen-fixer endophytic bacteria that capable to contribute IAA phytohormone into their growth media. The P31 isolate from rice crop tisssue of 2 months old produce the best rice sprouts than other isolates. This isolate can contribute of about 10 mg kg-1 IAA to its growth medium  and increase the crowns dry weight and the roots dry weight respectively with magnitudes of 133% and 225% compared to control treatment. Concentration and absorbtion of N for rice crops innoculated with P31 isolates had increased by 169% and 400%, recpectively. The P31 isolates had been identified as Burkholderia pseudomallei (also known as Pseudomonas pseudomallei).
The Change of Nutrients in Tidal Swamp Soil and Palm Oil Plant Due to Several Dosages Application of Palm Oil Mill Effluent on Planting Media Bakri Bakri; Siti Masreah Bernas; Dedik Budianta; Muhammad Said
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.294

Abstract

The change of several soil nutrients in tidal swamp area due to addition of palm oil mill effluent (POME) on soil media. The research objective was to determine the effect of different dosages application of palm oil mill effluent on nutrient changes within planting media. This experiment was conducted in a plastic house by using 8 month ages of plants consisting of 9 pots combined with 6 levels of BOD treatment (Biological Oxygen Demand) concentrations as follows: 20.000 mg/l (L5), 15.000 mg/l (L4), 10.000 mg/l(L3), 5.000 mg/l (L2), 2.500 mg/l (L1) and water only (Lo). The plants were grown for six months from December 2014 to June 2015. The variables observed were pH (H2O), pH KCl, C-Organic, N-Total, P-Bray I (ppm), K- dd, Na, Ca, Mg, Cation Exchange Capacity, Al-dd and H-dd as well as N, P and K nutrients of crop tissues. The results showed that addition of palm oil mill effluent increased soil pH and availability of soil N, P, K, Ca and Mg. Meanwhile nutrients content of N, P and K in tissues were not increased significantly by given POME with BOD up to 20.000 mg/l.
Soil Fertility Status of Organic Paddy Experiment Mujiyo Mujiyo; Bambang Hendro Sunarminto; Eko Hanudin; Jaka Widada
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 12, No 2 (2015)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v12i2.472

Abstract

The study aims to determine fertility status of the soil after organic paddy experiments using kinds and doses of organic fertilizers. Experiment was conducted at greenhouse laboratory in Faculty of Agriculture Sebelas Maret University Surakarta. Experimental design used completely randomized design with 9 kinds of treatment was replicated 3 times. Experiments were the use of cow manure, Azolla fertilizer, Azolla inoculum and its combinations that are based on fulfilling nutrient requirements of 120 kg N ha-1.Result shows that the use of cow manure, Azolla fertilizers and Azolla inoculum had no effect on changes of soil fertility status. Soil fertility status was not significantly correlated with cow manure (0,16ns), Azolla fertilizer (0,26ns) and Azolla inoculum (0,16ns). Average of final soil fertility status included fertile category, which was similar as the initial soil fertility status. Average of final soil properties of treatment but nevertheless was relatively higher than in no treatment, indicating the use of cow manure, Azolla fertilizer, Azolla inoculum and its combinations had greater impact to soil properties. Cow manure despite increased available K2O and dry grain, but it did not significantly increase the soil fertility status from fertile to very fertile. This was presumably due to the relatively short experiment period, only one planting season had not given significant effect to soil properties. Implication of this study is the use of cow manure, Azolla fertilizer, Azolla inoculum and its combinations although did not increase the soil fertility status but could maintain soil fertility status as the initial conditions before planting.

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