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

Agric ◽  
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 &gt;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>

Characteristics and Stability of Soil Aggregates in Tea Plantation

2011 ◽  
Vol 343-344 ◽  
pp. 968-974
Author(s):  
Zi Cheng Zheng ◽  
Ting Xuan Li ◽  
Shu Qin He
Keyword(s):  
Soil Aggregates ◽  
Geometric Mean ◽  
Aggregate Stability ◽  
Stability Index ◽  
Soil Aggregate ◽  
Tea Plantation ◽  
Soil Aggregate Stability ◽  
Mean Weight Diameter ◽  
Eucalyptus Plantations ◽  
Wet Sieving

Soil aggregate stability as a key indicator of soil structure and erodibility to evaluate soil stability, is a product of interactions between soil environment, management practices, and land use patterns. The objective of this study was to analyze the distribution characteristics, characteristics of fractal features and stability of soil aggregates in tea plantations and eucalyptus plantations of Western Sichuan in China. The dry- and water-stable aggregate size distributions were determined by dry sieving and wet sieving methods. The results showed that soil structural properties in tea and eucalyptus plantations were similar. With increase in depth of soil layer, the aggregate stability of tea plantation soil became stronger. Comparative analysis of dry and wet sieving results showed that most of the aggregates in tea plantation soil were unstable. The soil aggregates >5mm and 0.5-0.25mm in size had higher stability, while those 2-1mm in size had lower stability. For tea plantation soil, the correlation coefficients between aggregate stability index and mean weight diameter, geometric mean diameter, fractal dimension were bigger under wet sieving than those under dry sieving. The results showed that aggregate stability index, mean weight diameter, geometric mean diameter, fractal dimension of water-stable aggregates could characterize soil aggregate stability in tea plantation ideally.

scholarly journals Do different arbuscular mycorrhizal fungi affect the formation and stability of soil aggregates?

2019 ◽  
Vol 43 ◽  
Author(s):  
Marisângela Viana Barbosa ◽  
Daniela de Fátima Pedroso ◽  
Nilton Curi ◽  
Marco Aurélio Carbone Carneiro
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Soil Aggregates ◽  
Aggregate Stability ◽  
Stability Index ◽  
Arbuscular Mycorrhizal ◽  
Soil Aggregate ◽  
Porous Space ◽  
Soil Aggregate Stability ◽  
The Mean

ABSTRACT Soil structure, which is defined by the arrangement of the particles and the porous space forming aggregates, is one of the most important properties of the soil. Among the biological factors that influence the formation and stabilization of soil aggregates, arbuscular mycorrhizal fungi (AMF) are distinguished due to extrarradicular hyphae and glomalin production. In this context, the objective of this study was to evaluate different AMF (Acaulospora colombiana, Acaulospora longula, Acaulospora morrowiae, Paraglomus occultum and Gigaspora margarita) associated with Urochloa brizantha (A. Rich.) Stapf on soil aggregate stability. The study was conducted in a completely randomized design, using an Oxisol and autoclaved sand 2:1 (v/v), with seven treatments: five AMF; and treatments with plants without inoculation and with only the soil, with 5 replicates. The experiment was conducted during 180 days and the following variables were evaluated: mycelium total length (TML); production of easily extractable glomalin-related soil protein (GRSP) in the soil and aggregate classes; stability of the dry and immersed in water aggregates through the mean geometric diameter (MGD) and the mean weighted diameter (MWD) of aggregates; and the soil aggregate stability index (ASI). It was observed that the inoculation favored soil aggregation, with a high incidence of A. colombiana, which presented the highest MGD, TML and GRSP production in the aggregates with Ø>2.0mm and for A. colombiana and A. morrowiae in the aggregates with Ø<0.105 mm, when compared to the treatment without inoculation. These results show that there is a distinction between the effects of different AMF on the formation and stability of soil aggregates.

Stabilization of Soil Aggregates in Relation to Soil Redistribution by Intensive Tillage on a Steep Hillslope

2014 ◽  
Vol 955-959 ◽  
pp. 3566-3571 ◽  
Author(s):  
Yong Wang ◽  
Zhuang Xiong ◽  
Wu Xian Yan ◽  
Yue Qun Qiu
Keyword(s):  
Soil Aggregates ◽  
Geometric Mean ◽  
Aggregate Stability ◽  
Aggregate Size ◽  
Soil Aggregate ◽  
Soil Aggregate Stability ◽  
Mean Weight Diameter ◽  
Tillage Operation ◽  
Sloping Land ◽  
The Impact

The objective of this study was to investigate soil aggregate stability within landscape on hillslopes by intensive tillage. Traditional tillage by consecutive hoeing was performed 5 and 20 times on steeply sloping land of the Sichuan Basin, China, by using the methods of simulated tillage to analyze the impact of long-term tillage on soil aggregates at different slope positions. The dry-sieved method was used to determine distribution of aggregate size in the different landscape positions, and mean weight diameter (MWD) and geometric mean diameter (GMD) as indices of soil aggregate stability. The different times of tillage resulted in different soil aggregate distributions. The results showed that the MWD and GMD values of aggregates were significantly decreased (p< 0.05) after 20-tillage operation, compared with pre-tillage operation. The differences in distributions of MWD and GMD demonstrate that the choice of the tillage times can be an important factor in changing soil aggregate stability and productivity in steeply sloping fields.

scholarly journals PEMBERIAN KOTORAN KAMBING TERHADAP PERTUMBUHAN DAN HASIL WORTEL (Daucus carota) DAN BAWANG DAUN (Allium fistulosum L.) DENGAN BUDIDAYA TUMPANGSARI

Agric ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 52 ◽  
Author(s):  
Trias Budi Rahayu ◽  
Bistok Hasiholan Simanjuntak ◽  
Suprihati
Keyword(s):  
Organic Farming ◽  
Daucus Carota ◽  
Confidence Level ◽  
Block Design ◽  
Farming System ◽  
Growth And Yield ◽  
Allium Fistulosum ◽  
Organic Farming System ◽  
Organically Managed ◽  
Range Test

<p>Intercropping cultivation model is commonly used in organic farming system. The system is aimed to save land and fertilizer aside from creating biodiversity in a portion of a planting. The research was conducted in Permata Hati Farm, Ciburial Village, Cisarua Sub district, Bogor Regency, West Java from October 2012 to January 2013. The purposes of the research are: a) to know the effect of goat dung application toward the growth and yield of organically managed carrot and scallion intercropping, and b) to determine the best quantity of goat dung to promote growth and yield of carrot and scallion intercropping. Randomized Completely Block Design (RCBD) with 6 treatments and 3 replications was used in this experiment. The treatments applied were 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 of goat dung. Duncan’s Multiple Range Test (DMRT) at the confidence level of 95% was used to analyze the result. The application of 15 ton ha-1 goat dung affected scallion’s height and number of seedlings as well as carrot’s biomass and height. This dosage resulted in the best yield of scallion and carrot intercropping.</p>

scholarly journals Role of Gliricidia sepium in Improving Aggregate Stability of Ultisol Limau Manis Padang: A LABoratory study

Jurnal Solum ◽  
2012 ◽  
Vol 9 (1) ◽  
pp. 44
Author(s):  
Yulnafatmawita Yulnafatmawita ◽  
Asmar Asmar ◽  
Vitria Purnamasari
Keyword(s):  
Organic Matter Content ◽  
Aggregate Stability ◽  
Stability Index ◽  
Gliricidia Sepium ◽  
Soil Aggregate ◽  
Matter Content ◽  
Soil Aggregate Stability ◽  
Top Soil ◽  
The Stability

There is no much public concern about soil aggregate stability improvement of a soil.  This is due to the fact that it does not directly affect crop yield for a short term, but it determines sustainable agriculture and development for a long term.  This research was aimed to investigate soil physical properties especially soil aggregate stability of Ultisols after fresh OM application, then to determine the exact OM dosage to improve the stability.  Ultisols used was from Limau Manis (± 367 m asl), an area in lower footslope of Mount Gadut, having wet tropical rainforest. Due to land use change, farming activities in that sloping area could enhance erosion process in the environment.  Therefore, efforts to anticipate the erosion must be found.  Fresh OM applied was Gliricidia sepium which was found plenty in the area.  Five levels of fresh Gliricidia sepium, were 0, 5, 10, 15, and 20 t/ha.  Top soil (0-20 cm depth) was mixed with OM, then incubated for 3 months in glasshouse.  The results after a 3-month incubation showed that SOM content did not statistically increase, but it improved based on the criteria, from very low to low level as OM was applied for ≥ 10 t/ha. It seemed that 10 t/ha Gliricidia sepium was the best dosage at this condition. There was a positive correlation between SOM content and aggregate stability index of Ultisols after fresh Gliricidia sepium addition.Keywords: Ultisols, soil aggregate stability, soil organic matter content

scholarly journals INDEKS STABILITAS AGREGAT TANAH PADA PERKEBUNAN TEH BERBASIS SLOPE DAN UMUR TANAMAN DI KECAMATAN GUNUNG TALANG KABUPATEN SOLOK

2020 ◽  
Vol 8 (1) ◽  
pp. 75-81
Author(s):  
Dendy Detafiano Prakasa Afner ◽  
A Aprisal ◽  
Y Yulnafatmawita
Keyword(s):  
Aggregate Stability ◽  
Stability Index ◽  
Soil Aggregate ◽  
Soil Physical Properties ◽  
Soil Samples ◽  
Tea Plantation ◽  
Soil Aggregate Stability ◽  
Tea Plantations ◽  
Chemical Conditions ◽  
Physical And Chemical

Land-use change from the forest into tea plantation in Solok Regency in 1983 has decreased the area of forests in Gunung Talang District. Clearing up the forest at the beginning for tea plantation could worsen the physical and chemical conditions of the soil. One of which is soil aggregate stability that is very dynamic and can influence other soil physical properties. This study was aimed to determine soil Aggregate Stability Index (ASI) at tea plantations. Soil samples was taken at a depth of 0-20 cm from five different slopes (0-8% (A), 8-15% (B), 15-25% (C), 25-45% (D), and> 45% (E)) and at two crop ages (10 and 35 years old). The results showed that the soil aggregate stability index at tea plantations ranged from stable to very stable. It tended to decrease by increasing slope percentage at each of crop age, Between the ages, it showed higher ASI at 35 years old crop age under relatively flat (0-8%) and very steep (>45%) areas.

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

SoilREns ◽  
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

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

Jurnal Solum ◽  
2008 ◽  
Vol 5 (1) ◽  
pp. 7 ◽  
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.

scholarly journals 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

Agrikultura ◽  
2015 ◽  
Vol 26 (2) ◽  
Author(s):  
Henly Yulina ◽  
Rina Devnita ◽  
Rachmat Harryanto
Keyword(s):  
Bulk Density ◽  
Plant Biomass ◽  
Block Design ◽  
Steel Slag ◽  
Aggregate Stability ◽  
Soil Bulk Density ◽  
Soil Aggregate ◽  
Soil Porosity ◽  
Soil Aggregate Stability ◽  
Randomized Block Design

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

scholarly journals Karakteristik Beberapa Sifat Fisika Tanah akibat Pemberian Pupuk Organik, Biochar, NPK dan Pola Tanam Jagung dan Kedelai

2018 ◽  
Vol 3 (3) ◽  
pp. 11-19
Author(s):  
Mukhsin Febi Mirza ◽  
Teti Arabia ◽  
Hairul Basri
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Combination Treatment ◽  
Organic Fertilizer ◽  
Aggregate Stability ◽  
Stability Index ◽  
Soil Aggregate ◽  
Planting Pattern ◽  
Soil Aggregate Stability ◽  
S Factor

Abstrak.  Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk organik, biochar, NPK dan pola tanam jagung dan kedelai terhadap karakteristik fisika tanah. Penelitian ini dilaksanakan pada Agustus sampai Februari 2017 di kecamatan Muara Tiga kabupaten Pidie. Penelitian menggunakan Rancangan Acak Kelompok (RAK) pola faktorial 5 x 3 dengan 3 ulangan. Faktor yang diteliti adalah pembenah tanah (A) dan pola tanam (S). factor pertama pembenah tanah (A) terdiri dari NPK 400 kg ha-1, biochar 10 t ha-1, pupuk kandang 10 t ha-1, biochar 10 t ha-1+ NPK 400 kg ha-1, pupuk kandang 10 t ha-1+ NPK 400 kg ha-1, faktor kedua adalah pola tanam yaitu monokultur jagung, monokultur kedelai, tumpangsari jagung dan kedelai dengan demikian terdapat 15 kombinasi perlakuan dengan 3 ulangan. Parameter yang diamati adalah porositas tanah, indeks stabilitas agregat, dan kadar air tanah. Hasil penelitian menunjukkan bahwa pupuk organik, biochar, NPK dan pola tanam memberikan efek yang sama yaitu tidak berpengaruh nyata terhadap porositas tanah, indeks stabilitas agregat dan kadar air tanah. Namun terdapat interaksi antara perlakuan pupuk organik, biochar, NPK dan pola tanam terhadap porositas tanah dan indeks stabilitas agregat.Some Characteristics Of the Physical Properties of tho Soil Due to the Granting of Organic Fertilizer, NPK Patterns of Biochar, Planting Corn And SoybeansAbstract. This research aims to know the influence of the giving of the organic fertilizer, NPK and patterns of biochar, planting corn and soybeans against the physical characteristics of the soil. This research was carried out in August until February 2017 in the subdistrict of Muara Tiga Pidie. The research of using Random Design Group (RAK) factorial pattern 5 x 3 with 3 replicates. Factors examined are (A) the land pembenah and the planting pattern (S). the first factor pembenah the soil (A) consists of 400 kg of NPK ha-1, biochar 10 t ha-1, manure 10 t ha-1, biochar 10 t ha-1 + NPK 400 kg ha-1, manure 10 t ha-1 + NPK 400 kg ha-1, the second factor is the pattern of planting corn monoculture, namely soy monoculture intercropping of corn and soybeans, thus there are 15 combination treatment with 3 replicates. The observed parameters are porosity, soil aggregate stability index, and moisture content of the soil. The results showed that the organic fertilizer, biochar, NPK and planting patterns give the same effect that is not the real effect against porosity soil aggregate stability index, and moisture content of the soil. However, there is an interaction between treatment of organic fertilizer, biochar, NPK and planting patterns against the porosity of soil aggregate stability and index.

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