scholarly journals Pengaruh Partikel Nano Abu Vulkanik dan Batuan Fosfat terhadap Muatan Variable dan Kemasaman Andisol

Agrikultura ◽  
2017 ◽  
Vol 28 (3) ◽  
Author(s):  
Anne Yuliana ◽  
Mahfud Arifin ◽  
Nenny Nurlaeny
Keyword(s):  
Volcanic Ash ◽  
Soil Acidity ◽  
Rock Phosphate ◽  
Zero Point ◽  
Nano Particle ◽  
Variable Charge ◽  
Zero Point Of Charge ◽  
Randomized Design ◽  
Two Factors ◽  
Department Faculty

ABSTRACTThe effect of particle nano volcanic ash and rock phosphate on variable charge or zero point of charge (pH0) and soil acidity of AndisolsThis experiment aimed to find out the effect of particle nano volcanic ash and rock phosphate on variable charge or zero point of charge (pH0) and soil acidity of Andisols from Ciater Subang-West Java. This experiment was conducted from October 2016 to March 2017 at Soil fertility and Plant Nutrition Laboratory and Physic Soil Laboratory of Soil Science and Land Resources Department, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. The experiment was arranged in Completely Randomized Design consisted of two factors. The first factor was particle of nano volcanic ash consisted of 4 levels. The second factor was particle of nano rock phosphate consisted of 4 levels and 3 replications. The results showed that there was no interaction between nano particle of volcanic ash and rock on zero point of charge (pH0), but there was interaction effect on pH-H2O. Combination of 2.5% nano particle of volcanic ash and 0% nano particle of rock phosphate could reduce the value of zero point of charge (pH0) as much 28.57%. Combination of 5% volcanic ash nano particle and 7.5% rock phosphate nano particle dosage was the best treatment and could increase the value of soil acidity or pH-H2O until 20.36%.Keywords: Andisol, pHο, Rock phosphate, Volcanic ashABSTRAKTujuan dari penelitian ini adalah untuk mengetahui pengaruh partikel nano abu vulkanik dan batuan fosfat terhadap muatan variable atau titik muatan nol (pH0) dan kemasaman tanah Andisols Ciater Subang-Jawa Barat. Penelitian ini dilaksanakan pada bulan Oktober 2016 sampai dengan Maret 2017 di Laboratorium Kesuburan Tanah dan Nutrisi Tanaman serta Laboratorium Fisika Tanah Departemen Ilmu Tanah dan Sumber Daya Lahan, Fakultas Pertanian, Universitas Padjadjaran, Jatinangor. Penelitian ini menggunakan Rancangan Acak Lengkap pola faktorial dengan dua faktor. Faktor pertama adalah partikel nano abu vulkanik yang terdiri dari 4 taraf. Faktor kedua adalah partikel nano batuan fosfat yang terdiri dari 4 taraf, diulang sebanyak 3 kali. Hasil penelitian menunjukkan bahwa tidak terjadi interaksi antara partikel nano abu vulkanik dan batuan fosfat terhadap titik muatan nol (pH0) namun terjadi interaksi antara kedua perlakuan tersebut terhadap kemasaman tanah (pH-H2O). Komposisi dosis yang paling baik dalam menurunkan pH0 adalah 2,5% partikel nano abu vulkanik dan 0% partikel nano batuan fosfat yaitu sebesar 28,57%, sedangkan komposisi dosis yang paling baik dalam meningkatkan pH-H2O adalah 5% partikel nano abu vulkanik dan 7,5% partikel nano batuan fosfat yaitu sebesar 20,36%.Kata Kunci: Abu vulkanik, Andisol, Batuan fosfat, pH0

scholarly journals The Effect of Organic Matter (Pueraria javanica) and Rock Phosphate on the Growth and P-uptake of Corn Plant (Zea mays) in Andisol Pasir Saronggae

2003 ◽  
Vol 5 (1) ◽  
pp. 17-22
Author(s):  
S Djuniwati ◽  
A Hartono ◽  
L.T Indriyati
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Rock Phosphate ◽  
P Uptake ◽  
Corn Plant ◽  
Randomized Design ◽  
Two Factors ◽  
Plastic Bag ◽  
Department Faculty ◽  
Water Holding

Phosphor (P) is the second esensial element after nitrogen which is needed by plants, however, its ava/i!ahi/ity is aproblem in vulcanic ash soils such as Andisol. The objective of the research was to study the effect of organic matter(Puerariajavanica) and rock phosphate to the growth and P-uptake of corn plant in Andisol Pasir Sarongge. The experiment was conducted in the greenhouse of Soil Department, Faculty of Agriculture, Bogor Agriculture University.The design of the experiment was completely randomized design with two factors and three replications. The firstfactor was the rates of organic matter (0, 2.5%, and 5%) and the second factor was the rates of rock phosphate (0, 40 mg Plkg, and 80 mg Plkg), therefore there were 27 of treatments of experiment. Three kilogram of soil samples were put in the plastic bag and mixed with combination of organic matter and rock phosphate based on the treatments and then incubatedfor 4 week periods. After incubation, five seeds of corn were planted, and then were selected and left three plants after one week period. The soil moisture was maintained to water holding capacity.The results of the study showed that after 4 weeks of planting (4WAP), addition of organic matter increased plantheight, dry matter and P- uptake of corn plant. However, the effect between the rate of 2.5% and 5% of organic matter to those variables above were not significantly different. The increased of plant height (4WAP), dry matter, and P-uptake due to addition of organic matter were in the range of 32-41%, 68-105%, and 84-92%, respectively. Meanwhile. addition of rock phosphate. and combination of organic matter and rock phosphate did not affect those variables.

scholarly journals Pengaruh Abu Vulkanik Kelud dan Pupuk Kandang terhadap Ketersediaan dan Serapan Kalium pada Jagung di Tanah Alfisol

2016 ◽  
Vol 18 (1) ◽  
pp. 18
Author(s):  
Suntoro Suntoro ◽  
Sudadi Sudadi ◽  
Hery Widijanto ◽  
Galuh Novikah Widy Utami
Keyword(s):  
Crop Production ◽  
Volcanic Ash ◽  
Chemistry Laboratory ◽  
Duncan Multiple Range Test ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Four Levels ◽  
Total Potassium ◽  
Range Test

<p>Kelud volcanic ash has high source of minerals, which is potassium. This study aims to determine the effect and find the best composition of Kelud volcanic ash and manure to the availability and corn uptake of potassium in the Alfisols.This research is expected to provide information on the composition of volcanic ash Kelud and proper manure for agriculture. This research was conducted in the greenhouse, in the Laboratory of Ecology and Management of Crop Production, and soil chemistry laboratory of the Faculty of Agriculture, Sebelas Maret University in June 2014 - January 2015. Research using completely randomized design which consists of two factors, there are the thickness of Kelud volcanic ash which consists of four levels A0 (0 cm), A1 (2 cm), A2 (4 cm), and A3 (6 cm) and the dose of manure were P0 (0 ton/ha), P1 (2,5 ton/ha), and P2 (5 ton/ha). Each combination treatment was repeated 3 times. The data were then analyzed using the F test and continued with Duncan Multiple Range Test Test (DMRT) level of 95%. The results showed that the interaction between the two treatments were no significant different. Availability Potassium gradually decreased with an increase in the dose of volcanic ash Kelud, allegedly because of the low value of the total potassium Kelud volcanic ash. The results of measurements of plant potassium uptake increased with increasing dose Kelud volcanic ash and manure.</p>

scholarly journals Vermicompost Buffering Capacity to Reduce Acidification of Pb and Cd Contaminated Inceptisols and Entisols

2021 ◽  
Vol 26 (1) ◽  
pp. 1
Author(s):  
Zainal Muktamar ◽  
Bandi Hermawan ◽  
Wulandari Wulandari ◽  
Priyono Prawito ◽  
Sigit Sudjatmiko ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Contaminated Soils ◽  
Laboratory Experiments ◽  
Soil Acidity ◽  
Field Capacity ◽  
Management Intervention ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Properties Of Soil

Contamination of  heavy metals on the soil leads to an increase in its acidity. Vermicompost application is commonly used to improve the properties of soil. The study was carried out to determine the reduction of the acidity in Pb and Cd contaminated soils under the application of vermicompost. Two laboratory experiments were set using Completely Randomized Design (CRD) with two factors. The first factor was soil samples, vis Inceptisols, and Entisols, and the second factor was the rates of vermicompost, consisted of 0, 5, 10, 15 g kg-1. The treatment combination was repeated three times. The soils were pretreated with 10 mg kg-1 Pb or Cd using Pb(NO3)2 and Cd(NO3)2. Three hundred kg soil sample was incorporated with vermicompost and placed in a 500 ml plastic bottle. The mixtures were incubated for eight weeks, and the moisture of the soil was maintained at field capacity. The acidity and soil temperature were monitored every week. The study indicated that Pb contaminated soil acidity increased to the sixth week of the incubation and decreased afterward. However, the acidity of Cd contaminated soil was consistently increased during the incubation. Treatment of vermicompost significantly lowered the acidity of both Pb and Cd contaminated soils. Contaminated Entisols had a higher response to the application of vermicompost than that of Inceptisols. This finding is significant in assessing acidity risk and possible management intervention for Pb and Cd contaminated soils.

scholarly journals Influences of aluminum ions on the determination of zpc (zero point of charge) of variable charge soils

1989 ◽  
Vol 35 (4) ◽  
pp. 623-633 ◽  
Author(s):  
Katsutoshi Sakurai ◽  
Akinori Nakayama ◽  
Tsutomu Watanabe ◽  
Kazutake Kyuma
Keyword(s):  
Zero Point ◽  
Variable Charge ◽  
Zero Point Of Charge ◽  
Aluminum Ions ◽  
Variable Charge Soils

Factors affecting zero point of charge (zpc) of variable charge soils

1989 ◽  
Vol 35 (1) ◽  
pp. 21-31 ◽  
Author(s):  
Katsutoshi Sakurai ◽  
Yohichi Ohdate ◽  
Kazutake Kyuma
Keyword(s):  
Zero Point ◽  
Factors Affecting ◽  
Variable Charge ◽  
Zero Point Of Charge ◽  
Variable Charge Soils

scholarly journals DISPONIBILIDADE DE MACRONUTRIENTES EM Eucalyptus saligna CULTIVADOS COM LODO DE PAPEL RECICLADO

FLORESTA ◽  
2014 ◽  
Vol 45 (2) ◽  
pp. 261
Author(s):  
Álvaro Boson De Castro Faria ◽  
Alessandro Camargo Angelo ◽  
Celso Garcia Auer
Keyword(s):  
Soil Acidity ◽  
Paper Industry ◽  
Paper Sludge ◽  
Eucalyptus Saligna ◽  
Recycled Paper ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Recycled Paper Sludge ◽  
Different Doses

Os resíduos sólidos da indústria de reciclagem de papel têm potencial de uso para correção da acidez do solo e como fonte de nutrientes para as culturas agrícolas e florestais. Este trabalho teve como objetivo avaliar os efeitos de diferentes doses de lodo de papel reciclado e de adubação de cobertura sobre a disponibilidade de macronutrientes em Eucalyptus saligna Smith, com base em um ensaio com mudas com três meses de idade transplantadas para vasos distribuídos com espaçamento em uma área experimental. Após a homogeneização da granulometria e da umidade do lodo, foi implantado um delineamento inteiramente casualizado com dois fatores (dose e adubação em cobertura) e três repetições, totalizando dezoito amostras de folhas e dezoito de raízes por micronutriente. O lodo de papel reciclado não interferiu na disponibilização do P. Também não foi uma fonte de N, K e Mg para as plantas. O resíduo foi uma fonte de Ca para o desenvolvimento vegetal.Palavras chave: Produção florestal; resíduos agroindustriais; sustentabilidade. AbstractMacronutrients availability in Eucalyptus saligna grown with recycled paper sludge. The solid waste of recycling paper industry has potential to be used for the correction of soil acidity and as a source of nutrients for agricultural crops and forestry. This work aimed to evaluate the effects of different doses of recycled paper sludge and top fertilization on the availability of macronutrients in Eucalyptus saligna Smith, based on a test with seedlings with three months old transplanted to pots distributed with spacing an experimental area. After homogenization of particle size and moisture content of the sludge, was implemented a completely randomized design with two factors (dose and top fertilization), and three repetitions, totaling eighteen samples of leaves and roots for each micronutrient. The recycled paper sludge did not affect the availability of P. Also, did not was a source of N, K, and Mg for plants. The residue was a source of Ca for the vegetal development.Keywords: Forestry; agro-industrial residues; sustainability.

PENGGUNAAN MEDIA TANAM DAN PUPUK NPK TERHADAP HASIL RUMPUT TEKI (Cyperus rotundus) SERTA ANALISA KANDUNGAN KERIPIK OLAHANNYA

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Wiwik Endah Rahayu ◽  
Atika Romalasari
Keyword(s):  
Research Result ◽  
Nutrient Content ◽  
Cyperus Rotundus ◽  
Root Weight ◽  
Tuber Weight ◽  
Randomized Design ◽  
Two Factors ◽  
The Media ◽  
Npk Fertilizer ◽  
Weight Number

Nut grass is Cyperaceae group and underestimated its existence. Nut grass has many benefits so  potential to be developed. This study aims to determine the effect of planting media and the addition of NPK fertilizer to the growth of the nut grass and find out the nutrient content of chips made from nut grass tuber. The design of this study was factorial complete randomized design (RAL) which consisted of two factors. First factor is Planting Media, consist of M1 = soil, M2 = Soil: Sand (2: 1), M3 = Soil: Compost Fertilizer (2: 1) and M4 = Soil: Cage Fertilizer (2: 1) and second factor is fertilizer dosage NPK 15: 15: 15 with the level P1 = Without NPK fertilizer, P2 = 5 g NPK fertilizer, P3 = 10 g NPK fertilizer. Research result showed that the media significantly affected the number of clumps, root weight, clump weight, overall weight and number of flowers but did not significantly affect the height, number of tubers and tuber weight. Fertilizer significantly affected the number of clumps, root weight, clump weight, overall weight, number of flowers, number of tubers and tuber weight but did not significantly affect the height at P≤0.05 level. Interaction between planting media and NPK fertilizer did not significantly affect all parameters. Keywords: Chips, NPK Fertilizer, Nut Grass, Planting Media

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