The Effect of Steel Slag and Bokashi of Husk to Soil Bulk Density, Soil Aggregate Stability, Soil Porosity and Plant Biomass Broccoli in Andisol Lembang

ABSTRACTAndisol soil has very good soil physical characteristic, however it has problem with the Pretention. Giving ameliorant to reduce the P retention is expected to maintain, moreover toimprove some soil physical characteristics. The objective of this research was to find out theinteraction between steel slag and bokashi of husk to bulk density, aggregate stability, soil porosityand biomass of broccoli on Andisol Lembang. This study used a randomized block design factorialwith two factors. The first factor was steel slag and the second factor was bokashi of husk. Each ofthem consisted of 4 levels: 0%, 2.5%, 5.0% and 7.5% with two replications. The result of thisresearch showed there was not interaction between steel slag and bokashi of husk to soil bulkdensity, soil aggregate stability, soil porosity and biomass of broccoli. The statistical results showedthat bokashi of husk influence independently to decreasing soil bulk density until 0.53 g cm-3,decreasing soil aggregate stability until 3.25 and increasing soil porosity until 80.22%, but theprovision of steel slag and bokashi of husk didn‟t influence to biomass of broccoli.Keywords : organik matter, silicate, bulk density, agreggate stability, broccoliABSTRAKAndisol mempunyai sifat fisika tanah yang baik, namun bermasalah dengan retensi P. Pemberianamelioran untuk mengurangi retensi P, diharapkan dapat mempertahankan, bahkan meningkatkanbeberapa parameter fisika tanah tersebut. Penelitian bertujuan untuk mengetahui interaksi terakbaja dengan bokashi sekam padi terhadap bobot isi, kemantapan agregat, porositas tanah danbiomassa tanaman brokoli pada Andisol Lembang. Penelitian menggunakan Rancangan AcakKelompok Pola Faktorial dengan dua faktor. Faktor pertama terak baja dan faktor kedua bokashisekam padi masing-masing 4 taraf: 0%, 2,5%, 5,0% dan 7,5%, diulang dua kali. Hasil penelitianmenunjukkan bahwa tidak terjadi interaksi antara terak baja dengan bokashi sekam padi terhadapbobot isi, kemantapan agregat, porositas tanah dan biomassa tanaman brokoli. Hasil statistikmenunjukkan bahwa bokashi sekam padi berpengaruh mandiri untuk menurunkan bobot isi tanahsampai 0.53 g cm-3, menurunkan kemantapan agregat tanah sampai 3,25 dan meningkatkanporositas tanah sampai 80,22%, namun pemberian terak baja dan bokashi sekam padi tidakberpengaruh terhadap biomassa tanaman brokoli.Kata kunci : bahan organik, silikat, bobot isi, kemantapan agregat, brokoli

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Bulk density and porosity of soils influenced by skidding operations in the Nkrankwanta Off-Forest Reserve of Ghana

Advances in Forestry Science ◽

10.34062/afs.v8i2.9530 ◽

2021 ◽

Vol 8 (2) ◽

pp. 1409-1415

Author(s):

Ammal Abukari ◽

Donkor Christian ◽

Kwame Ochire-Boadu

Keyword(s):

Physical Properties ◽

Bulk Density ◽

Block Design ◽

Soil Surface ◽

Soil Bulk Density ◽

Soil Physical Properties ◽

Soil Porosity ◽

Forest Reserve ◽

Randomized Block Design ◽

Increasing Trends

Heavy forest machinery used in skidding has the capacity to influence the physical properties of soils. These may possibly lead to an upsurge in soil disruption and compaction of the soil surface decreases forest soil fertilities. This study assesses the effects of skidding on some soil physical properties such as the soil bulk density and porosity in the Nkrankwanta off-forest reserve in Ghana. The treatments comprised of four traffic intensity levels (1, 5, 10, and 15 passes) of the Mercedes Benz skidder (MB) Trac 1800 and a slope of two levels (less than 20 % and greater than 20 %) in a completely randomized block design. In addition, porosity and soil bulk density were assessed at varied distances from the MB Trac 1800. Soil bulk density results showed increasing trends with traffic frequency. Soil bulk density measured in the undisturbed area was 0.64 g cm-3 and 0.56 g cm-3 at slopes of less than 20% and greater than 20%, respectively. On the skid trail, soil bulk density significantly increased with traffic frequency (p<0.05). However soil porosity declined. Soil porosity estimated in uninterrupted area was 59.10 % and 57.40 % at < 20% and > 20% slope, respectively. Soil porosity was significantly influenced via different skidder passes (p<0.05). The soil physical properties were not influenced by the steepness of the slope however acted together in the number of passes to influence soil porosity. The impacts of the skidder on soil physical properties were significantly apparent at distances of 2 m to each sideway of the skidding trail. In conclusion, distinct responsiveness ought to be considered throughout the operations of skidding to curtail unfriendly influences on soil physical properties in ground-base skidding.

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Stabilitas Agregat Tanah, Populasi Jamur Pelarut P dan Hasil Jagung yang Dipengaruhi oleh Pupuk Hayati Mikroba Pelarut P dan Pupuk P pada Ultisols

SoilREns ◽

10.24198/soilrens.v16i1.18317 ◽

2018 ◽

Vol 16 (1) ◽

Author(s):

Betty Natalie Fitriatin ◽

Muhammad Agi Pratama ◽

Oviyanti Mulyani

Keyword(s):

Zea Mays L ◽

Soil Aggregates ◽

Block Design ◽

Aggregate Stability ◽

Soil Aggregate ◽

Soil Aggregate Stability ◽

Randomized Block Design ◽

P Fertilizer ◽

Phosphate Solubilizing ◽

Determine Effect

Ultisols is a soil order with low available P. Phosphate Solubilizing Microbes is a group of microorganisms that has the ability to release P for plants. The aim of this experiment was to determine effect of phosphate solubilizing microbes and P fertilizer on soil aggregate stability, PSF population and yield of maize (Zea mays L.) on Ultisols. This research was conducted from May 2016 to August 2016 at Ciparanje, Faculty of Agriculture, Universitas Padjadjaran. This research was arranged in Randomized Block Design (RBD), consisted of 9 treatments with 3 replications. The treatments were 100 kg ha-1 of SP-36 fertilizer, 50 kg ha-1 of biofertilizer, as well as combination of SP-36 fertilizer (50% and 100%) with the dose of biofertilizer (50%, 100% and 150%). This experiment showed that the combination of biofertilizer and P fertilizer gave significant effect on the population of PSF and yield of maize, but not for stability of soil aggregates. The application of SP-36 50 kg ha-1 and 50 kg ha-1 PSM combination gave higher population of PSF and yield of maize.Keywords: Biofertilizer, maize, phosphate- solubizing fungi, aggregate stability, Ultisols

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Respon Air Tersedia dan Bobot Isi Tanah pada Tanaman Jagung Manis dan Brokoli terhadap Kombinasi Terak Baja dan Bokashi Sekam Padi pada Andisol, Lembang

Agrikultura ◽

10.24198/agrikultura.v29i2.19248 ◽

2018 ◽

Vol 29 (2) ◽

pp. 66

Author(s):

Henly Yulina ◽

Rachmat Harryanto ◽

Rina Devnita

Keyword(s):

Bulk Density ◽

Physical Characteristic ◽

Sweet Corn ◽

Block Design ◽

Steel Slag ◽

Soil Bulk Density ◽

Independent Effect ◽

Randomized Block Design ◽

Two Factors

ABSTRACTResponse of water available and soil bulk density on sweet corn and broccoli of steel slag and husk bokashi combination on Andisol LembangThe objective of this research was to find out responses of water available and soil bulk density on sweet corn and broccoli of steel slag and husk bokashi combination on Andisol Lembang. This study used a randomized block design factorial with two factors. The first factor was steel slag and the second factor was husk bokashi. Each factor onsisted of 4 levels of 0%, 2.5%, 5.0% and 7.5% with two replications. The result showed there was not interaction between steel slag and husk bokashi on water available and soil bulk density on sweet corn and broccoli. Bokashi of husk has an independent effect to water available on sweet corn while bokashi of husk has an independent effect to soil bulk density on sweet corn and broccoli.Keywords: Steel slag, Bokashi of husk, Soil physical characteristic, Sweet corn, BroccoliABSTRAKAndisol mempunyai sifat fisika tanah yang baik, namun bermasalah dengan retensi P. Pemberian amelioran untuk mengurangi retensi P, diharapkan dapat mempertahankan bahkan meningkatkan parameter fisika tanah tersebut. Penelitian bertujuan untuk mengetahui respon air tersedia dan bobot isi tanah pada tanaman jagnung manis dan brokoli terhadap kombinasi terak baja dengan bokashi sekam padi pada Andisol Lembang. Penelitian menggunakan Rancangan Acak Kelompok Pola Faktorial dengan dua faktor. Faktor pertama terak baja dan faktor kedua bokashi sekam padi masing- masing 4 taraf yaitu 0%, 2,5%, 5,0%, dan 7,5%, diulang dua kali. Hasil penelitian menunjukkan bahwa tidak terjadi interaksi antara terak baja dengan bokashi sekam padi terhadap air tersedia dan bobot isi pada tanaman jagung manis dan brokoli. Bokashi sekam padi berpengaruh mandiri terhadap air tersedia pada jagung manis, sedangkan bokashi sekam padi berpengaruh mandiri terhadap bobot isi tanah pada jagung manis dan brokoli.Kata Kunci: Terak baja, Bokashi sekam padi, Ketersediaan air, Bobot isi, Jagung manis, Brokoli

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Impact of soil management systems on organic dwarf apple orchards and soil aggregate stability, bulk density, temperature and water content

Canadian Journal of Soil Science ◽

10.4141/cjss96-028 ◽

1996 ◽

Vol 76 (2) ◽

pp. 203-209 ◽

Cited By ~ 29

Author(s):

Brice D. Walsh ◽

Angus F. MacKenzie ◽

S. Salmins ◽

Deborah J. Buszard

Keyword(s):

Water Content ◽

Bulk Density ◽

Soil Water ◽

Tree Growth ◽

Aggregate Stability ◽

Ground Cover ◽

Soil Aggregate ◽

Apple Orchards ◽

Soil Aggregate Stability ◽

Straw Mulch

With growing pressure to reduce pesticide use, fruit growers require an alternative to herbicidal control of weeds. One option is the use of mulches or permanent vegetative ground covers, which in turn may have advantages in promoting soil physical properties and improving growth. This study examined the short-term effects of ground cover management in two newly established dwarf apple orchards in Quebec. Effects of cultivation, composted manure mulch, straw mulch, grass cover crops, a cover crop mixture of lupin and wild carrot (mixed flora) and geotextile were determined, comparing soil aggregate stability, bulk density, temperature, volumetric water content and tree growth. Straw and geotextile mulches resulted in higher soil water contents and tree growth relative to soil under grass or mixed flora ground cover. Ground cover maintained soil aggregate stability. Soil temperatures were highest under cultivation and geotextile treatments in spring and summer months, and apple yields and growth rates were greater than for ground cover treatments. Straw mulch buffered soil from temperature variation. Little effect of mulch treatments on soil bulk density was observed. Given that soil water content was the primary factor related to optimum orchard production straw and geotextile mulches promoted soil water retention and could be considered superior management options for growers, depending on costs of establishment and maintenance of the mulches. Key words: Mulches, ground cover, bulk density, aggregate stability, soil temperature, volumetric water content

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Hubungan Bobot Isi dan Kemantapan Agregat Tanah dengan Biomassa Tanaman Jagung Manis dan Cabai Merah setelah diberikan Kombinasi Terak Baja dan Bokashi Sekam Padi pada Andisol, Lembang

Agrikultura ◽

10.24198/agrikultura.v30i1.22696 ◽

2019 ◽

Vol 30 (1) ◽

pp. 1

Author(s):

Henly Yulina ◽

Rina Devnita ◽

Rachmat Heryanto

Keyword(s):

Bulk Density ◽

Sweet Corn ◽

Block Design ◽

Steel Slag ◽

Randomized Block Design ◽

Two Factors

ABSTRACTRelationship between bulk density and soil agaregate stability on biomass of sweet corn and red chili after given combination steel slag and bokashi of husk on Andisol LembangThe objective of this research was to find out relationship between bulk density and soil agaregate stability on biomass of sweet corn and red chili after given combination steel slag and bokashi of husk on Andisol Lembang.This study used a Randomized Block Design Factorial with two factors. The first factor was steel slag and the second factor was bokashi of husk. Each of them consisted of 4 levels of 0%, 2.5%, 5.0% and 7.5% with two replications. The result of this research showed there was relationship between bulk density and soil agaregate stability on biomass of sweet corn and red chili, however only the biomass of red chili was influenced of bulk density and soil agaregate stability.Keywords: Steel slag, Bokashi of husk, Bulk density, Soil agaregate stability, Plant biomassABSTRAKPenelitian ini bertujuan untuk mengetahui hubungan antara bobot isi dan kemantapan agregattanah terhadap biomassa tanaman jagung manis dan cabai merah setelah diberikan kombinasi terakbaja dengan bokashi sekam padi pada Andisol Lembang. Penelitian menggunakan Rancangan AcakKelompok Pola Faktorial dengan dua faktor. Faktor pertama terak baja dan faktor kedua bokashisekam padi masing-masing 4 taraf yaitu 0%, 2,5%, 5,0%, dan 7,5%, diulang dua kali. Hasil penelitian menunjukkan bahwa terdapat hubungan antara bobot isi dan kemantapan agreagat tanahdengan biomassa tanaman jagung manis dan cabai merah, namun hanya biomassa tanaman cabaimerah yang dipengaruhi oleh bobot isi dan kemantapan agregat tanah.Kata Kunci: Terak baja, Bokashi sekam padi, Bobot isi, Kemantapan agregat, Biomassa tanaman

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PENGARUH PEMBERIAN BEBERAPA JENIS BAHAN ORGANIK TERHADAP STABILITAS AGREGAT TANAH ULTISOL LIMAU MANIS

Jurnal Solum ◽

10.25077/js.5.1.7-13.2008 ◽

2008 ◽

Vol 5 (1) ◽

pp. 7 ◽

Cited By ~ 1

Author(s):

Yulnafatmawita Yulnafatmawita ◽

Adrinal Adrinal ◽

Anita Febriani Daulay

Keyword(s):

Organic Matter ◽

Block Design ◽

Aggregate Stability ◽

Field Research ◽

Dry Weight ◽

Soil Aggregate ◽

Imperata Cylindrica ◽

Stability Field ◽

Tithonia Diversifolia ◽

Soil Aggregate Stability

A field research about the effect of some sources of organic matter on aggregate stability of Ultisol was conducted in Limau Manis Padang. The research was aimed to investigate the contribution of different sources of organic matter to soil aggregate stability. Field research was arranged in Completely Randomized Block Design (RBD) consisting of 4 treatments (types of organic matter) and 3 replications (blocks). The treatments were : A = Tithonia diversifolia, B = Straw of Oryza sativa, C = Imperata cylindrica, and D = Leucaena glauca. The dosage for each treatment was 20 ton/ha based on dry weight. The result showed that Tithonia diversifolia gave the best contribution in improving soil aggregate stability of Ultisol Limau Manis for the first three (3) months.Keywords : organic matter, aggregate stability, marginal soil.

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Soil compaction affects sunflower and Paiaguas palisadegrass forage productivity in the Brazilian savanna

Australian Journal of Crop Science ◽

10.21475/ajcs.20.14.07.p2305 ◽

2020 ◽

pp. 1131-1139 ◽

Cited By ~ 1

Author(s):

Adalto José de Souza Linhares ◽

Wainer Gomes Gonçalves ◽

Savio Menezes Cabral ◽

Marlete Ferreira de Brito ◽

Eduardo Valcacer Brandstetter ◽

...

Keyword(s):

Bulk Density ◽

Soil Compaction ◽

Plant Biomass ◽

Block Design ◽

Biomass Productivity ◽

Soil Bulk Density ◽

Stem Length ◽

Highly Sensitive ◽

Randomized Complete Block Design ◽

Livestock Systems

Integrated crop-livestock systems maximize land use, infrastructure and labor; diversify production; and minimize costs, thereby reducing risks and adding value to agricultural products. However, growing mechanically harvested crops can negatively affect soil structure, reducing plant biomass productivity. The present study aimed to evaluate soil compaction and its effects on the forage productivity of sunflower and Brachiaria brizantha cv. BRS Paiaguas during the second cropping period. The experiment was conducted as a split-plot randomized complete block design with four replications. Four compaction levels represented by traffic from an agricultural tractor were established: 0 (absence of compaction), 2, 10 and 30 passes over the same spot. Two forage systems were established in the subplots: sunflower grown solely as a monocrop (40,000 plants ha-1) or intercropped with Paiaguas palisadegrass (10 plants linear m-1). The following parameters were quantified: soil bulk density, plant height, capitulum diameter and 1000-achene weight for sunflower; stem length and the leaf/stem ratio for Paiaguas palisadegrass; and total and partitioned forage productivity. The results showed that sunflower was highly sensitive to soil compaction and that the development and productivity of this species decreased in response to the greatest bulk density, which in turn affected the Paiaguas palisadegrass. Overall, intercropping is recommended for increased forage productivity.

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CHANGES IN SOIL PHYSICAL CHARACTERISTICS ON THE SOIL CRUST PROCESS THROUGH THE USE OF CHICKEN MANURE AND POLYACRYLE AMIDE UNDER INTENSE RAINFALL

Jurnal Ilmu Tanah dan Lingkungan ◽

10.29244/jitl.11.2.71-75 ◽

2019 ◽

Vol 11 (2) ◽

pp. 71-75

Author(s):

Oteng Haridjaja

Keyword(s):

Bulk Density ◽

Aggregate Stability ◽

Soil Aggregate ◽

Physical Characteristics ◽

Chicken Manure ◽

Soil Crust ◽

Soil Permeability ◽

Soil Aggregate Stability ◽

Soil Physical Characteristics ◽

Permeability Rate

Soil crust is a soil suface layer which is more compact, harder, and brittle when it is drier than underlaying material. The soil physical characteristics such as aggregate stability, bulk density and soil permeability rate are closely related to this soil crust process. An experiment was conducted to evaluate the effects of chicken manure doses and certain chicken manure with PAM (Polyacrile Amide) to soil aggregate, bulk density and soil permeability rate. The result of this research, were: 1) An incremental addition of chicken manure into soil increased soil aggregation percentage, soil stability and soil permeability rate, and 2) The combined incremental additions of chicken manure with PAM were found to be more effective than only an incremental additions of chicken manure, increasing the aggregation percentage, soil aggregate stability, from the soil one day drainage process, but another case in decreasing the bulk density permeability rate from the soil with the same process.

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PENGARUH DOSIS PUPUK KANDANG TERHADAP STABILITAS AGREGAT TANAH PADA SISTEM PERTANIAN ORGANIK

Agric ◽

10.24246/agric.2013.v25.i1.p51-57 ◽

2016 ◽

Vol 25 (1) ◽

pp. 51

Author(s):

Mustoyo ◽

Bistok Hasiholan Simanjuntak ◽

Suprihati

Keyword(s):

Block Design ◽

Aggregate Stability ◽

Stability Index ◽

Farming System ◽

Soil Aggregate ◽

Soil Aggregate Stability ◽

Mean Weight Diameter ◽

Goat Manure ◽

Organic Farming System ◽

Range Test

<p>Organic matter is important to soil aggregate stability. The research of effect dosage of goat manure tos oil aggregate in organic farming system was do neon Andisols soil in Permata Hati Farm, CiburialHamlet, North Tugu village, Cisarua sub-district, Bogor district, West Java province. The research was conducted on October 2012 until the end of February 2013. The research purposes are: a) Know the goat manure’s dosage influence on soil aggregate in organik farming system, b) Determine the dos age of goat manure that can provide the best Mean Weight Diameter (MWD) and Aggregate Stability Index (ASI)in organik farming system. The research used randomized completely block design (RCBD) with 6 treatments and 3 replications. Goat manure dosage were used as treatments are 0 ton ha-1, 5 ton ha-1, 10 ton ha-1, 15 ton ha-1, 20 ton ha-1, and 25 ton ha-1. Data was analyzed by ANOVA and Duncan’sMultiple Range Test (DMRT) at 5% level. The research results are showed, with initial number of C-organic >4.5%, goat manure application was significant to change soil aggregate. Goat Manure 5 ton ha-1was enough to increasing Mean Weight Diameter (MWD) and ASI (Aggregate Stability Index).</p>

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