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 PENGARUH KADAR LENGAS TANAH PADA BERBAGAI FASE PERTUMBUHAN TERHADAP PERTUMBUHAN DAN HASIL KEDELAI

2021 ◽  
Vol 21 (1) ◽  
pp. 34-41
Author(s):  
Achmad Fatchul Aziez ◽  
Agus Budiyono ◽  
Endang Suprapti ◽  
Ari Kus Wardiyanto
Keyword(s):  
Drought Stress ◽  
Moisture Content ◽  
Field Capacity ◽  
Growth And Yield ◽  
Seed Filling ◽  
Randomized Design ◽  
Two Factors ◽  
Filling Phase ◽  
Completely Randomized Design ◽  
Number Of Branches

Soybeans are a very important food requirement in Indonesia, but they often face drought problems. Drought stress causes inefficient nitrogen absorption and makes the stomata close early so photosynthesis is not optimal, resulting in reduced yield. This research was conducted from August 2020 to October 2020 in Demangan village, Sambi sub-district, Boyolali district with polybags in a plastic house. This research method used Factorial Completely Randomized Design (CRD) consisting of two factors and repeated 3 times. The first factor was soil moisture content consisting ie. 100%, 75%, 50%, and 25% of field capacity. The second factor, the growth phase consists of active vegetative, flowering, and seed filling. Observations included the number of branches, number of productive branches, number of trifoliate leaves, the weight of filled pods, and weight of 100 dry seeds. Drought stress reduced the growth and yield of soybean at 25% moisture content in the field capacity of the seed filling phase. The number of branches, the number of productive branches, the number of trifoliate leaves, the weight of filled pods, and the weight of 100 dry seeds decreased with the lowest value.

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.

scholarly journals Karakteristik Kimia dan Organoleptik Flakes Kacang Hijau dengan Penambahan Bahan Pengisi dan Air

2016 ◽  
Vol 8 (1) ◽  
pp. 24-28
Author(s):  
Maya Indra Rasyid
Keyword(s):  
Water Absorption ◽  
Water Content ◽  
Mung Bean ◽  
Protein Levels ◽  
Absorption Ratio ◽  
Bean Flour ◽  
Organoleptic Characteristics ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design

(Chemical and Organoleptic Characteristics of Mung Bean Flakes with The Addition of Fillers and Water) ABSTRACT. The objective of this research was to determine the chemical and organoleptic characteristics of mung bean flakes with the addition of fillers and water. The study was conducted using completely randomized design with two factors namely the addition of fillers and water. The results showed that the addition of fillers and water has significant (P≤0,01) effect on the water absorption ratio and protein levels of mung bean flakes. The best treatment was obtained by the mung bean flour without the addition of fillers with 150% of addition water with water absorption ratio of 204%, water content of 5,7%, protein of 22,01%, starch levels of 61,76%, organoleptic values of aroma of 2,61, color of 2,42, crispness of 2,72 and flavor of 2,83.

scholarly journals Analisis Efektifitas Tepung Jamur sebagai Larvasida Aedes aegypti

2012 ◽  
Vol 14 (1) ◽  
pp. 126
Author(s):  
Yekki Yasmin ◽  
Lenni Fitri ◽  
Betty Mauliya Bustam
Keyword(s):  
Aedes Aegypti ◽  
Beauveria Bassiana ◽  
Storage Time ◽  
Natural Sciences ◽  
The Other ◽  
Biology Department ◽  
Randomized Design ◽  
Two Factors ◽  
Result Show ◽  
Completely Randomized Design

This research is about effectivity analysis of two kinds of fungi i.e. Beauveria bassiana and Metharrizium anisopliae as Aedes aegyptilarvacide, it has been conducted at laboratories Zoology in Biology Department, Mathematics and Natural Sciences Faculty, Syiah KualaUniversity. Aims of this research were estimating maximum time storage of fungi powder as effective larvacide and the number of bacteriacolonies were found in water used for experiment. This research was used Completely Randomized Design (CRD). The experiments consistof two factors i.e kind and saving time of fungi. The result show that the longer the storage time of Beauveria bassiana the more ineffectiveit was as larvacide and the least fungi colonies were found. Metharrizium anisopliae on the other hand, the longer it was kept, the moreeffective it was as larvacide and the more fungi colonies were found.

scholarly journals Evaluation of Phytoremediation Potential of Castor Cultivars for Heavy Metals from Soil

2019 ◽  
Vol 37 ◽  
Author(s):  
M.J. KHAN ◽  
N. AHMED ◽  
W. HASSAN ◽  
T. SABA ◽  
S. KHAN ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Contaminated Soils ◽  
Metal Uptake ◽  
Plant Biomass ◽  
Ricinus Communis ◽  
Contaminated Sites ◽  
Heavy Metal Uptake ◽  
Randomized Design ◽  
Completely Randomized Design

ABSTRACT: Phytoremediation is a useful tool to restore heavy metals contaminated soils. This study was carried out to test two castor (Ricinus communis) cultivars [Local and DS-30] for phytoextraction of heavy metals from the soil spiked by known concentrations of seven metals (Cu, Cr, Fe, Mn, Ni, Pb and Zn). A pot experiment was laid out by using a completely randomized design. Soil and plant samples were analyzed at 100 days after planting. The data on heavy metal uptake by plant tissues (roots, leaves and shoots) of the two castor cultivars suggested that a considerable amount of metals (Fe = 27.18 mg L-1; Cu = 5.06 mg L-1; Cr = 2.95 mg L-1; Mn = 0.22 mg L-1; Ni = 4.66 mg L-1; Pb = 3.33 mg L-1; Zn = 15.04 mg L-1) was accumulated in the plant biomass. The soil heavy metal content at the end of experiment significantly decreased with both cultivars, resulting in improved soil quality. Therefore, it is concluded that both castor cultivars, Local and DS-30, can be used for phytoremediation of heavy metal-contaminated sites.

scholarly journals The effect of organic fertilizer chicken on the growth of papaya plants in palm oil plantation: a case study of Naga Sari Village, Mestong, Muaro Jambi District

2021 ◽  
Vol 894 (1) ◽  
pp. 012030
Author(s):  
A T Maryani ◽  
N Mirna ◽  
F F Bahar
Keyword(s):  
Oil Palm ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Animal Waste ◽  
Chemical Fertilizers ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design

Abstract The use of chemical fertilizers in agriculture has caused soil degradation and is harmful to human health. Organic fertilizers made from animal waste have received worldwide attention because they are not detrimental to health or the environment. This paper describes the effect of using organic fertilizers from chicken manure on the growth of papaya plants. A completely randomized design was used in this study using two factors and three repetitions; the variations of the fertilizers given were 0, 50, 100, 150, and 200 g. This study informed that organic chicken manure had a significant effect on the growth of oil palm and papaya plants. The best growth is oil palm and papaya plants given 200 g of organic fertilizer from chicken manure.

scholarly journals Rumen fermentation kinetics as impacted by red amaranth (Amaranthus cruentus, L) leaf powder using in vitro gas production technique

2020 ◽  
Author(s):  
Thiwakorn Ampapon ◽  
Bounnaxay Viennasay ◽  
Metha Wanapat
Keyword(s):  
Rumen Fermentation ◽  
Gas Production ◽  
Amaranthus Cruentus ◽  
Randomized Design ◽  
In Vitro Gas Production ◽  
Two Factors ◽  
Dry Matter Degradation ◽  
Leaf Powder ◽  
Completely Randomized Design

Abstract Background A need for research searching for alternative rumen enhancers warrants immediate attention. The in vitro fermentation experiment was conducted using factorial arrangement of two factors of roughage to concentrate and seven level of red amaranth leaf powder percentage of total substrate in a Completely randomized design (CRD). Two factors, namely Factor A was two ratio of roughage (R) to concentrate (C) at 60:40 and 40:60 and Factor B was level of red amaranth (Amaranthus cruentus, L) leaf powder (RALP) supplementation at 0, 2, 4, 6, 8, 10, and 12% of total dietary substrate. Results Red amaranth leaf powder (RALP) contained phytonutrients both condensed tannins and saponins in addition with high macro minerals (Ca, K, and Mg). This experiment revealed innovations of the RALP supplementation by enhancing rumen propionate (C3) production, reducing acetate (C2) to (C3) ratio, reducing protozoal population and mitigating methane (CH4) production. Furthermore, rumen dry matter degradation percentages were remarkably enhanced (P < 0.001) by increasing RALP supplementation. Conclusion Plants rich in phytonutrients and minerals such as red amaranth leaf powder (RALP) have a vital and promising role in modulating rumen fermentation, mitigating methane production, as well as increasing substrate degradability.

scholarly journals Efek Agitasi Susu Probiotik yang ditambahkan Buah Naga Merah (Hylocereus polyrhizus) terhadap Uji Sensorik dan Total Plate Count

2016 ◽  
Vol 1 (1) ◽  
pp. 816-823
Author(s):  
Feby Zalika Parindra ◽  
Yusdar Zakaria ◽  
Yurliasni Yurliasni
Keyword(s):  
Ph Value ◽  
Plate Count ◽  
Milk Processing ◽  
Total Plate Count ◽  
Randomized Design ◽  
Dragon Fruit ◽  
Microbial P ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Hylocereus Polyrhizus

Abstrak.  Suatu penelitian telah dilakukan untuk mengetahui efek agitasi susu probiotik yang ditambahkan buah naga merah (Hylocereus Polyrhizus). Penelitian ini dilakukan di Laboratorium Ilmu dan Teknologi Pengolahan Susu Fakultas Pertanian Universitas Syiah Kuala pada tanggal 29 April - 31 Mei 2016. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial 2x4 dengan 3 kali ulangan yang terdiri dari 2 faktor, A, agitasi yaitu (A1) dan (A2) non agitasi. Dan faktor B yaitu konsentrasi buah naga merah (B1) 20%,  (B2) 25%,  B3 (30%) dan (B4) 35%. Parameter yang diamati adalah derajat keasaman (pH), total mikroba dan uji organoleptik. Hasil penelitian menunujukkan bahwa terdapat pengaruh yang sangat nyata (P0,01) terhadap derajat keasaman (pH) dan berpengaruh nyata terhadap total mikroba (P0,05) serta terdapat interaksi antara kedua perlakuan. Sedangkan untuk uji organoleptik terdapat pengaruh yang sangat nyata (P0,01) terhadap kekentalan dan warna susu probiotik.  nilai derajat keasaman pH 4,03 - 4,11 dengan agitasi (pengadukan) masih sesuai dengan standar (SNI) 01-2981-1992. Sedangkan nilai total mikroba optimal terjadi pada penambahan buah naga sebanyak 30% baik agitasi maupun non agitasi. Effects of Milk Probiotic Agitation Added Red Dragon Fruit (Hylocereus Polyrhizus) on Sensory Test and Total Plate Coun Abstract.  A study about effects of milk probiotic agitation added red dragon fruit (Hylocereus Polyrhizus)  has been conducted to determine to test sensory and total plate count. This research was held at the Laboratory of Science and Milk Processing Technology, Agriculture Fakulty Syiah Kuala University on April 29 to May 31, 2016. This study used a completely randomized design (CRD) 2x4 factorial design with three replications consisting of two factors, A, agitation (A1) and (A2) non agitation. And factor B is the concentration of red dragon fruit (B1) 20%, (B2) 25%, B3 (30%) and (B4) 35%. The observed parameter is the degree of acidity (pH), total microbial and organoleptic tests. The results of the study indicate that the there is a  highly significant influence (P 0,01) to the degree of acidity (pH) and total significantly affected the total microbial (P 0.05), and there is interaction between the two treatments. As for organoleptic tests are highly significant effect (P 0.01) the thickness and color of probiotic milk. acidity pH value of 4.03 to 4.11 with agitation (stirring) is still in accordance with the standard (SNI) 01-2981-1992. While the total value of optimal microbial occurred upon addition of dragon fruit by 30% both agitation and non agitation

scholarly journals Response of Shallots of Batu Ijo Variety on Doses of N And K Fertilizers

Akta Agrosia ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 19-24
Author(s):  
Widodo Widodo ◽  
Marlin Marlin ◽  
Nancy B. Sitio
Keyword(s):  
Plant Growth ◽  
N Fertilizer ◽  
Tuber Weight ◽  
Plant Weight ◽  
Randomized Design ◽  
K Fertilizer ◽  
Two Factors ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Higher Doses

Shallots (Allium cepa var. Aggregatum L) have many varieties that can be grown in the highlands and lowlands and one of them is the Batu Ijo variety. Nutrients N and K play an important role for plant needs. This research was conducted from March to June 2019 in Medan Baru, Bengkulu City. This study used a completely randomized design with two factors. The first factor was the dose of N fertilizer and the second factor was the application of K fertilizer. The application of N fertilizer had a significant effect on the number of shallots at week 2. The Urea dose given decreases the number of spring onions. For the best treatment at plant height is the treatment of Urea 300 kg/ha and KCl 50 kg/ha. Plant growth from week 2 to 5 increased significantly. The application of K fertilizer has an effect on the number of shallots at week 2 and the number of tubers. The higher the plant age, the more the number of leaves produced, but at higher doses, the number of leaves and the number of tubers decreased. The best treatment for the number of leaves produced was Urea 300 kg/ha and without giving KCl. For the best treatment of fresh plant weight, namely Urea 300 kg/ha and KCl 150 kg/ha, the best treatment fresh tuber weight was Urea 300 kg/ha and KCl 150 kg/ha, for tuber diameter the best treatment was 200 kg/ha of urea and KCl 100 kg/ha and for the number of tubers of Urea 0 kg/ha and KCl 150 kg/ha.Keywords: shallots, N fertilizer, K fertilizer

scholarly journals FERMENTATION OF WHEY WASTE AS ORGANIC LIQUID FERTILIZER "PUCAFU"

2017 ◽  
Vol 2 (2) ◽  
pp. 7-13
Author(s):  
Muhammad Akhsan Akib ◽  
Henny Setiawati
Keyword(s):  
Organic Liquid ◽  
Total N ◽  
Organic C ◽  
Fermentation Time ◽  
Liquid Fertilizer ◽  
Randomized Design ◽  
Two Factors ◽  
Liquid Wastes ◽  
Completely Randomized Design ◽  
Yeast Concentration

Whey waste contains organic materials, particularly high complex proteins and amino acids in the form of suspended and dissolved solids, however the utilization of whey as a organic liquid fertilizer still has a less attention. Thus the Utilization of the whey waste through anaerobic process to be used as a organic liquid fertilizer is the purpose of the research. This research was conducted using factorial design with completely randomized design (CRD) which consists of two factors: the yeast concentration (without yeast; 0.25 and 0.50 g/500 ml of whey waste) and the fermentation time (0, 3, and 5 days). The variables measured were the content of organic C, C/N Ratio, and Total N, P2O5 and K2O contents. The results showed that the fermented whey waste on the different fermentation time and yeast concentration had increased the organic C and C/N ratio, but decreased P2O5 and K2O contents. The utilization of whey combined with solid or other liquid wastes gave a chance to produce a quality organic liquid fertilizer 

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