Wani Hadi Utomo
UNIVERSITAS BRAWIJAYA JL.VETERAN KODE POS 65145 MALANG - JAWA TIMUR - INDONESIA

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HUBUNGAN SIFAT FISIK TANAH, PERAKARAN DAN HASIL UBI KAYU TAHUN KEDUA PADA ALFISOL JATIKERTO AKIBAT PEMBERIAN PUPUK ORGANIK DAN ANORGANIK (NPK) Prasetyo, Adi; Utomo, Wani Hadi; Listyorini, Endang
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 1 (2014)
Publisher : University of Brawijaya

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Abstract

A Alfisol in South Malang regency many used to intensive on farming with dominant commodity is cassava. Farmers seldom cultivate cassava continuously, the continuous cropping of cassava leads to fast depletion of major nutrients especially N and K and will require fertilizer supplement to give stable yield. Farmers not applied organic fertilizer cause to this soil poor organic materials. The research in first year with organic and inorganic fertilizers can repair soil physics dan tuber yield of cassava.The object of this research was to study the effects of organic fertilizer application to change of soil physics and relation to root system of cassava, and to study the effect of fertilizer application to tuber yield of cassava in the second year.Field observations arranged in a Randomized Block Design of 10 treatment and 3 replications, in Jatikerto, Malang Regency. This research took time on September 2005 until Juli 2006. Observation parameter includes bulk density, particle density, soil porosity, aggregate stability, root system (Lrv and Drv) and tuber yield of cassava. Obtained data tested by using F test (5%), level 5% Duncan test, Orthogonal Contrast test, linear regression and correlation test.Research result is the application of organic fertilizer showed significant difference able to increase the soil porosity and decrease the bulk density. Organic and anorganic combination application higher to tuber yield of cassava when compared to only organic or anorganic fertilizer application. The influence of organic manure addition on repair soil physics show very real difference to root system. Correlations between bulk density with Lrv (r = -0.728*), Lrv with tuber yield (r = 0.706*).Key words: soil phisycs, fertilizer, tuber yield and root system
KAJIAN SIFAT FISIK TANAH PADA BERBAGAI UMUR TANAMAN KAYU PUTIH (Melaleuca cajuputi) DI LAHAN BEKAS TAMBANG BATUBARA PT BUKIT ASAM (PERSERO) Malau, Ruth Saurmaria; Utomo, Wani Hadi
Jurnal Tanah dan Sumberdaya Lahan Vol 4, No 2 (2017)
Publisher : University of Brawijaya

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Abstract

Mining activities have an impact on the ground in the form of a high content of heavy metals, soil density increased due to the use of heavy equipment, a process of reversal and mixing top soil and sub soil, as well as poor aeration and drainage. One way to do PT Bukit Asam (Persero) to overcome it by doing reclamation using Cajuputi plant (Melaleuca cajuputi). Cajuputi plants have a high level of adaptation can improve soil physical properties such as texture, porosity, saturated hydraulic conductivity, moisture content, bulk density, specific gravity, pH and C-Organic. This study was conducted to determine the effect on the development of reclaimed land in the physical properties at area coal post mining and determine the effect of age Cajuputi reclamation plant (Melaleuca cajuputi) to changes in the physical properties of the soil. On the difference in age of the plant 1 year, 3 years and 5 years, and there are 5 replicates. Texture has increased in the sand at 19.3%, porosity and saturated hydraulic conductivity increases proportional to the levels of C-organic soil. Bulk density and density decreased. Value acidity decreased, but no real effect on the t test between the age of the plant reclamation. The decline also occurred at the level of the water content caused increasing age of root crops will be easier to absorb water in field capacity and the addition of organic matter to add the activity of organisms in the soil and plant litter to protect ground water from direct blows.
IMPLEMENTASI PEMELIHARAAN LAHAN PADA TANAMAN UBIKAYU: PENGARUH PENGELOLAAN LAHAN TERHADAP HASIL TANAMAN DAN EROSI Harrys, Moh.; Utomo, Wani Hadi; Prijono, Sugeng
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 1 (2014)
Publisher : University of Brawijaya

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Abstract

Land degradation in the Cassava causing damage to land, especially land due to the loss of part of the place. The loss of this part of the land causes a decrease in soil productivity, loss of the elements required burly plants, infiltration rate and water holding ability of soil is reduced, and the land use of opium. This condition will result in halted plant growth and decrease harvest. Various kinds of soil conservation activities has long been introduction by the government. However, results are still unsatisfactory. Not many farmers who adopt conservation technology, the government introduced the land, and land degradation continues.This research is to learn how different the various technical maintenance of the nature of the soil, the plants, and erosion and find out the pattern of land the right to increase the plant Cassava. Reduction in erosion rate occurred as a result of improvements to the land and the nature of plant growth.Research conducted in the Garden Experiments Brawijaya University in Malang. Ordo Alfisols including land, land and cycle 6 - 8%. Maintenance of land is done with the form of organic manure, and soil processing. Results of research shows that, technical maintenance of good soil is able to increase plant growth. As a result of improvements to decrease the growth of plants and limpasan level erosion surface. In the election technology, farmers choose tumpangsari treatment combination of manure and gulud as possible options.Keyword: land husbandry, cassava, land management, crops, erosion.
IMPLEMENTASI PEMELIHARAAN LAHAN PADA TANAMAN UBIKAYU: PENGARUH PENGELOLAAN LAHAN TERHADAP HASIL TANAMAN DAN EROSI Pramudita, Moh Harrys; Utomo, Wani Hadi; Prijono, Sugeng
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 2 (2014)
Publisher : University of Brawijaya

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Abstract

Land degradation in the Cassava causing damage to land, especially land due to the loss of part of the place. The loss of this part of the land causes a decrease in soil productivity, loss of the elements required burly plants, infiltration rate and water holding ability of soil is reduced, and the land use of opium. This condition will result in halted plant growth and decrease harvest. Various kinds of soil conservation activities has long been introduction by the government. However, results are still unsatisfactory. Not many farmers who adopt conservation technology, the government introduced the land, and land degradation continues.This  research is to learn how different the various technical maintenance of the nature of the soil, the plants, and erosion and find out the pattern of land the right to increase the plant Cassava. Reduction in erosion rate occurred as a result of improvements to the land and the nature of plant growth. Research conducted in the Garden Experiments Brawijaya University in Malang. Ordo Alfisols including land, land and cycle 6 - 8%. Maintenance of land is done with the form of organic manure, and soil processing. Results of research shows that, technical maintenance of good soil is able to increase plant growth. As a result of improvements to decrease the growth of plants and limpasan level erosion surface. In the election technology, farmers choose tumpangsari treatment combination of manure and gulud as possible options.Keyword: land husbandry, cassava, land management, crops, erosion.
PENGARUH PENGOLAHAN TANAH DAN PEMBERIAN BAHAN ORGANIK (BLOTONG DAN ABU KETEL) TERHADAP POROSITAS TANAH DAN PERTUMBUHAN TANAMAN TEBU PADA ULTISOL Nita, Carolina Eva; Siswanto, Bambang; Utomo, Wani Hadi
Jurnal Tanah dan Sumberdaya Lahan Vol 2, No 1 (2015)
Publisher : University of Brawijaya

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Abstract

The use of agricultural mechanization in the form of tractors and earth moving will have an impact on soil porosity, soil bulk density and soils ability to store water. The purpose of this study was to determine the effect of soil tillage and organic matter (filter cake and boiler ash) on soil porosity and high growth of sugarcane (Saccharum officinarum L.). The experiment used a randomized block design with 5 treatments and 3 replications, K0 = Control (Plowing 2 times + Harrowing 1 time + Furrowing 1 time), K1 = (Plowing 2 times + Harrowing 1 time + Furrowing 1 time filter cake  40 t ha-1 and boiler ash 40 t ha-1 spread), K2 = (Plowing 1 time + Harrowing  1 times + Furrowing 1 times filter cake  40 t ha-1 and boiler ash 40 t ha-1 spread), K3 = (Sub soiling 2 times + Harrowing 1 times + Furrowing 1 time filter cake 40 t ha-1 and boiler ash 40 t ha-1 spread), K4 = (Sub soiling 2 times + Harrowing 1 time + Furrowing 1 time filter cake  40 t ha-1 and boiler ash 40 t ha-1 included in the bolt). Tillage Sub soiling 2 times + Harrowing 1 time + Furrowing 1 time filter cake 40 t ha-1 and boiler ash 40 t ha-1 included in the bolt (K4) was able to increase the porosity of the soil that was equal to 50.2% and increased the sugar cane plant height of 3 MST, 6 and 9 MST, respectively 11.62 cm, 17.35 cm and 34.59 cm
PENGARUH PEMBERIAN ABU KETEL TERHADAP SIFAT FISIK TANAH, PERTUMBUHAN DAN PRODUKSI TANAMAN TEBU PADA ULTISOL DI PABRIK GULA BONE, SULAWESI SELATAN Abror, Kiromil; Siswanto, Bambang; Utomo, Wani Hadi
Jurnal Tanah dan Sumberdaya Lahan Vol 4, No 1 (2017)
Publisher : University of Brawijaya

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Abstract

Waste of Bone sugar factory in the form of sugarcane boiler ash has not been used optimally, yet the sugarcane boiler ash contains significant amounts of K, Ca, Mg and P.  The objective of this study was to elucidate the effects of sugarcane boiler ash on soil physical properties, and growth and yield of PSBM 901 sugarcane variety at Bone sugar Factory. Treatments tested in this study were Kontrol (Urea 300 kg ha-1, SP36 200 kg ha-1, KCL 100 kg ha-1, Dolomit 1 t ha-1) (P1),  compost 6 t ha-1 (P2),  sugarcane boiler ash 40 t ha-1 + compost 6 t ha-1 (P3), sugarcane boiler ash 40 t ha-1 (P4), sugarcane boiler ash 40 t ha-1 without K fertilizer (P5), and sugarcane boiler ash 40 t ha-1 without dolomite (P6). The results showed that the P6 treatment (P6) was able to decrease soil bulk density by of 0.8 g cm-3 and soil particle density from 2.52 g cm-3 to 2.08 g cm-3. Furthermore, the P6 treatment was also able to increase the total soil porosity to 51.1% volume and aggregate stability value from 0.8 mm to 1.2 mm. The P6 treatment was also  able to increase growth,  trunk of sugarcane,  and number of tillers sugarcane. The best value of sugarcane production was shown by the P6 treatment with the value of 51.56 t ha-1. The highest profit of Rp. 15.585.528,53.was obtained from the P5 treatment.
PENGARUH APLIKASI BIOCHAR TONGKOL JAGUNG DIPERKAYA ASAM NITRAT TERHADAP KADAR C-ORGANIK, NITROGEN, DAN PERTUMBUHAN TANAMAN JAGUNG PADA BERBAGAI TINGKAT KEMASAMAN TANAH Yuananto, Hadi; Utomo, Wani Hadi
Jurnal Tanah dan Sumberdaya Lahan Vol 5, No 1 (2018)
Publisher : University of Brawijaya

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Abstract

The need for food in Indonesia is relatively large, but not followed by optimal land conditions. One of the efforts to improve the quality of land that can be applied is biochar. Biochar used comes from corn cobs with nitrate acid enrichment. The purpose of this research is to know the effect of biochar application of corn cobs enriched nitric acid to C-Organic content, Nitrogen, and vegetative growth of corn plants at different soil pH. The research was implemented in September 2016 - March 2017 at the Tribhuwana Tunggadewi Experimental Garden. This study used a factorial randomized block design with two factors and three replications. The first factor of soil pHs were soil from West Borneo (As), Wajak (Ne), and NTT (Ba). The second factor of biochar applications were without biochar (K), biochar (Bio), and biochar enriched nitrate acid (BioN). The average effect of pH with biochar was no interaction except on the N-total content. However, overall application of 5 t ha-1 of biochar and biochar enriched nitrate acid had better C-organic, N-total, and growth of maize than control treatment on each soil.
PENGARUH RESIDU BICOHAR TONGKOL JAGUNG DIPERKAYA AMONIUM SULFAT TERHADAP BEBERAPA SIFAT TANAH DAN PERTUMBUHAN TANAMAN JAGUNG MANIS DI pH TANAH YANG BERBEDA Sitohang, Exclesia Ansila; Utomo, Wani Hadi
Jurnal Tanah dan Sumberdaya Lahan Vol 5, No 1 (2018)
Publisher : University of Brawijaya

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Abstract

Biochar is one of amandement soil that comes from imperfectly combustion (pyrolysis) form of natural charcoal. The addition of biochar as a soil reparing was able to increase the carbon in the soil that able to improve soil characteristic soil. The purpose of this study was to find out the influence of residual biochar enriched with amonium sulphate on soil chemical and physical properties, and plant growth on various soil acidity levels. Treatments tested for this study were biochar residues enriched by amonium sulfate, N fertilizer (BN), biochar residues (B), without biochar, N fertilizer (N), and control (K) and various degrees of soil pH, i.e. pH 6-7 (P1), pH 4-5 (P2), pH 5-6 (P3). Twelve treatments were arranged in a randomzed block design with three replicates. Variables observerd were properties of soils (pH, C-Organic, CEC, N-total, and aggregate stability), and maize growth parameters (plant height and the number of leaves). The results showed that aplication of biochar of residues maize cob enriched with amonium sulfphate and various pH soil had interactions towards soil CEC and soil N-total, and had an interactions towards plant growth at plant age of 8 weeks-10 weeks, and number of leaves at age 9 weeks-10 weeks.
KONSERVASI PANTAI LABUANGKALLO DENGAN METODE MEKANIK DAN VEGETATIF Idayati, Sri; Utomo, Wani Hadi
BUANA SAINS Vol 17, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v17i1.578

Abstract

Labuangkallo is a village in costal area, located on the bay of Apar, in the boundary of57 km2 national park. Based on the map of hydro oceanography (1980) and bathymetry measurements (2011), there has been changing of coastline during 31 years.It showed significant changes, especially in the protrusion showed abrasion of 4.9507 m / yr. In the review and direct observation, the issues are grouped into three (3) major parts: (a) Labuangkallo river estuary is getting narrow due to sedimentation; (b) Fishermen settlement was eroded by waves, and (c) mangrove forest was destroyed by abrasion. The source of obstruction is, there is magnitude of the waves from the northeast and east coast, and it abrades the land, especially in area of protrusion / headland. It made angled waves against the shoreline andthe wave forces shaping currents that carry sediment along the coast due to abrasion and deposited on the edge of the river Labuangkallo. The conseravation strategy is usingmechanical method is hard treadment by coastal protector constructionand HDPE sand bag materials, there of the vegetation method with soft treadment using mangrove vegetation along the coastal village. Both are considered the strategies forreclamation.
Humic and Fulvic Acids of Gliricidia and Tithonia Composts for Aluminium Detoxification in an Ultisol Wahyudi, Imam; Handayanto, Eko; Sykehfani, Sykehfani; Utomo, Wani Hadi
AGRIVITA, Journal of Agricultural Science Vol 32, No 3 (2010)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v32i3.12

Abstract

A laboratory experiment was conducted to elucidate roles of Gliricidia sepium and Tithonia diversifolia composts and their extracted humic and fulvic acids on aluminum concentration in an Ultisol. Those composts and humic and fulvic acids extracted from them mixed with soil were arranged in a complete randomized design with three replicates, and incubated for 90 days. Al concentration and pH of the soil were measured at 0, 3, 10, 20, 30, 45, 60, 75 and 90 days after incubation. Results of the study showed that the highest decrease in exchangeable Al concentration (90.5%) was observed for Tithonia fulvic acid treatment during 90 days, followed by Tithonia compost (88.4%), Gliricidia fulvic acid (82.3%), Gliricida compost (82.2%), Tithonia humic acid (75.66%), and Gliricidia humic acid (73.46%) treatments, whereas control only decreased exchangeable Al concentration by 0.9%. The rate of change in exchangeable Al concentration was fast for the first 45 days, but it then slowed down for the second 45 days (45-90 days). This was particularly observed with organic acid treatments, whereas compost treatment still showed a subsequent decrease. Patterns of Al chelate and pH were very similar to that of exchangeable Al. It was thus concluded that roles of humic and fulvic acids in reducing exchangeable Al was only short term, whereas compost played roles in the long term.Keywords: Ultisol, aluminium, humic acid, fulvic acid, gliricidia sepium, tithonia diversifolia