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INDONESIA
Jurnal Tanah dan Air
Published by Universitas Pembangunan Nasional Veteran Yogyakarta
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Articles 5 Documents
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Search results for , issue "Vol 14, No 2 (2017)" : 5 Documents clear
Nisbah N/K jerami dan hasil tiga varietas padi (oryza sativa L.) pada pemberian hara N, P dan K alternatif berbasis teknologi eksisting petani Yustisia Yustisia; Tohari Tohari; Dja’far Shiddieq; Subowo Subowo
Jurnal Ilmu Tanah dan Air Vol 14, No 2 (2017)
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v14i2.2575

Abstract

The most farmers in the lowland use N, P and K nutrients from urea, SP 36 and KCl fertilizer severally. The combined rates of NPK, NK, PK and NP was given varies by farmers. Its expected that N/K ratio of straw and grain yield varies with varieties and varies with NPK, NK, PK and NP combined rates. Pot experiment aimed to identify N/K ratio of straw and grain yield and test the several combined rates of N, P and K nutrients and its effectiveness based on the farmers’s technology. The experiment was conducted in Glasshouse of Agriculture Faculty, Gadjah Mada University during dry season 2009. The experiment applied Randomized Split Plot Design and each treatment was repeated 3 times. The Main Plot treatment consisted of 3 rice varieties: IR 64, Ciherang and Cimelati. The Sub Plot treatment consisted of 5 combined doses of N, P and K based on the farmers’s technology as a reference (+NPK): 222.26 kg ha-1 N, 56.80 kg ha-1 P2O5 and 47.67 kg ha-1 K2O; (0 NPK); (0 N + PK); (0 P + NK); and (0 K + NP). The result showed that the highest straw N/K ratio was achieved by IR 64. It was significantly different with Ciherang and Cimelati. The grain yield of IR 64, Ciherang and Cimelati was not significantly different. Considering its grain yield, Ciherang and Cimelati can be used as alternative of variety for farmers. The highest grain yield (77,089 g.pot-1) and highest RAE value (107,68%) was achieved by (0 P + NK) treatment. The RAE value in (0 P + NK) treatment was achieved by Ciherang (121.74%) and IR 64 (117.07%). The lowest of grain yield was achieved by (0 NPK) and (0 N + PK) treatments. It was affected by an imbalance of straw N/K ratio due to the effect of Inceptisol’s native soil properties (low N, high P and K). Based on the grain yield and RAE value, combined rate of 0 P + NK (0 kg P2O5/ha, 222.26 kg N/ha and 47.67 kg K2O/ha) can be used as alternative of N, P, K fertilization. 
Identifikasi lithium tanah di kawasan pegunungan selatan DIY Djoko Mulyanto; R. Agus Widodo
Jurnal Ilmu Tanah dan Air Vol 14, No 2 (2017)
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v14i2.2576

Abstract

The diversity of lithology and land conditions such as rainfall, slope /and shape the face of the land has given rise to the diversity of soil properties. Gunungkidul until recently held the record for the highest suicide cases in Indonesia, and the handling of local governments focused on the social problem, cultural and economic pressure that was not the reducing of the problem. In medicine the role of lithium is very strategic to handle patients with multiple personality disorder (bipolar disorder) are likely to commit suicide. Therefore, the authors are very interested in examining the soil lithium concentration in this region. The purpose of this study was to know the concentration of lithium of soil at various lithologies in the region of Gunungkidul. Research using the survey method and purposive sampling using land units map which the results of overlay of geological and slope maps. Lithium is obtained by extracting soil by using strong acids, reading the results by the AAS, lithium analyzed is the soil total Li. The results showed that soil Li total varies quite well to the kinds of rocks, slope and rainfall in the range of 5 - 22 ppm. Generally indicates that the more of slope, the higher the rainfall shows the range of Li is the lower value. The most unique is that the environment of carbonate rocks, soil Li concentration is not affected by environmental conditions, even in the region Li accumulation of rocks to the soil is the highest in comparison with non-carbonate rocks lithology. While the results of water analysis in several areas in Gunungkidul almost all show the value of <0.01 ppm, except in areas of Gedangsari analyzed <0.1 ppm. The concentration indicates that the status of Li ground water in the region of Gunungkidul is very low.
Variasi temporal dan spasialtinggi muka air tanah gambut lokasi demplot ICCTF jabiren kalimantan tengah Hendri Sosiawan; Budi Kartiwa; Wahyu Tri Nugroho; Haris Syahbuddin
Jurnal Ilmu Tanah dan Air Vol 14, No 2 (2017)
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v14i2.2572

Abstract

As the swamp ecosystem, the presence of water in the peat is strongly influenced by the characteristic of rain and river tide. Thus the role of rivers and canals in cultivated peatlands is especially important to maintain the optimal water level fluctuations for crops. Demplot ICCTF in Jabiren, Pulang Pisau District, Central Kalimantan peat land was cultivated for rubber plant community,located beetwen the river Jabiren (secondary canal) and tertiary canal. The objective is to determine the peatland water level fluctuations both temporally and spatially. To achieve this objective, these activities have been implemented i.e: topographic survey, installation of piezometer and staff gauge, and water level observation. Topographic survey has been carried out to map land elevation, position and elevation of water level observation device and water infrastucture. Observation of the spatial dynamics of ground water level was done manually, and the temporal dynamic of water level in canal inlet and outlet observed automatically using loggers. Results shows that the groundwater level fluctuations have a simillar tendency with water level of the river and tertiary canal. Spatial variation of groundwater level elevation shows that the highest groundwater level was the farthermost of piezometer from the canal or river. Hydrotopograpy land shows that the pattern of ground water level pattern like a dome. This indicates that the peatland of Jabiren ICCTF research demonstration plot that began to be cultivated for rubber plant in 2006 has not experienced subsidence significantly. Result indicates also that temporal fluctuation of ground water level was strongly influenced by pattern fluctuation of water level ofsecondary canal inlet but it was not influenced by secondary canal outlet. The tertiary canals flapegates must be funtioned well in order to maintain the optimal depth of groundwater as water level does not fluctuate. The secondary channel as serves as a transport services must be temporary installed by flapegate at downstream so that the duration of the water level in the channel will last longer and ultimately affect positive on the water level in the cultivated land.
Pengaruh limbah biogas sapi terhadap ketersediaan hara makro-mikro inceptisol Sari Widya Utami; Bambang Hendro Sunarminto; Eko Hanudin
Jurnal Ilmu Tanah dan Air Vol 14, No 2 (2017)
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v14i2.2573

Abstract

Effect of Cattle Sludge on Macro-Micro Nutrient Availability of Inceptisol (Sari Widya Utami, Bambang Hendro Sunarminto and Eko Hanudin):  Objective of this research to know the effect of cattle sludge application on N, P, K, Fe, Mn, Zn and Cu availability of Inceptisol that had been cultivated intensify. Cattle sludge that used, consisted by 2 form; solid and liquid (slurry) form. The experiment was arranged Completely Block Randomized Design (CRBD) with 3 replicates of 2 factors combination. The first factor was dose of solid sludge consisted 2 leves were 0 ton/ha (P0) and 5.4 ton/ha (P1). The second factor was dose of slurry consisted 4 levels, were 0 liter/ha (D0), 500 liter/ha (D1), 1000 liter/ha (D2), 1500 liter/ha (D3). Variables were observed some soil chemical characteristic such as pH, EC, Corganic, CEC, total N, availability of P, availability of K, availability of Fe, availability of Mn, availability of Zn and availability of Cu. Data were analysed by F test and if there were significant effect then continued by using Duncan’s Multiple Range Test (α = 5%). Result of this research showed gave solid sludge as much 5.4 ton/ha was able to increase pH, Corganic and total N. Gave slurry was not able to increase macro and micro nutrient availability of Inceptisol.
Karakterisasi asam humat dan asam fulvat pada ultisol dengan pemberian limbah segar organik dan pengalengan nenas Susila Herlambang; Azwar Maas; Sri Nuryani Hidayah Utami; Jaka Widada
Jurnal Ilmu Tanah dan Air Vol 14, No 2 (2017)
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v14i2.2574

Abstract

The purpose of the study to know characterization of humic and fulvic acids after three months decomposition by fresh organic waste and canning pineapples treatment at Ultisol Lampung. The research was designed with a completely randomized factorial design with three factors in the plot pots 165 cm x 165 cm x 55 cm. The first is fresh organic waste (200 ton.ha-1 chopper pineapple crops, 40 ton.ha-1 cattle manure, 40 ton.ha-1 cassava waste, 40 ton.ha-1 waste pump pineapple, 2 ton.ha-1 mill juice pineapple), and the second is depth on the soil (i.e. 0 - 15 cm, 0 - 30 cm and 0 - 45 cm), the each repeated three replication so total treatments are 24 plot pots. The results showed ameliorant treatment fresh organic waste and canning pineapples can increase the levels of C-organic from <1% to >1.5%. On the control (K0) in two months decomposition did not significantly different at 5%, but the decomposition of humic acid for three months showed significant differences in the treatment of K0, K1 and K2. Utilization of combinations of fresh organic waste and canning pineapples treatment at the depths (0 - 15, 0 - 30 and 0 – 45 cm) can increase the humic acid content about >1.5% in three months decomposition waste. The combination treatment of fresh organic waste and canning pineapples on Ultisol for three months decomposition, able to provide sufficient nutrients especially the availability of C-organic, humic acid and fulvic acid for growth pineapples.

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