Claim Missing Document
Check
Articles

Mercury contamination in soil, tailing and plants on agricultural fields near closed gold mine in Buru Island, Maluku Reginawanti Hindersah; Robi Risamasu; A Marthin Kalay; Triyani Dewi; Imran Makatita
Journal of Degraded and Mining Lands Management Vol 5, No 2 (2018)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.909 KB) | DOI: 10.15243/jdmlm.2018.052.1027

Abstract

Agricultural productivity in Buru Island, Maluku is threatened by tailings which are generated from formerly gold mine in Botak Mountain in Wamsait Village. Gold that extracted by using mercury was carried out in mining area as well agricultural field.  High content of mercury in tailings and agricultural field pose a serious problem of food production and quality; and further endangers human health. The purpose of this research was to determine the contaminant level of mercury in tailing, soil and its accumulation in edible part of some food crops. Soil, tailing and plant samples for Hg testing were taken by purposive method based on mining activities in Waelata, Waeapo and Namlea sub district. Six soil samples had been analyzed for their chemical properties. Total mercury levels in tailings and plants were measured by Atomic Adsorption Spectrophotometer. This study showed that agricultural field where tailings were deposited contained Hg above the threshold but agricultural area which is far from hot spot did not. Most edible parts of food crops accumulated mercury more than Indonesian threshold for mercury content in food. This evidence explained that tailings deposited on the surface of agricultural field had an impact on soil quality and crop quality. Tailing accumulated on soil will decreased soil quality since naturally soil fertility in agricultural field in Buru is low.
LIMBAH SAGU: POTENSI LOKAL UNTUK MEDIA PUPUK HAYATI Reginawanti Hindersah; A. Marthin Kalay; Agus Jacob; Abraham Talahaturuson
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.86 KB) | DOI: 10.33512/j.agrtek.v6i1.229

Abstract

Sago starch production leaves solid and liquid wastes that has not been used optimally. Both organic substances still contains a lot of nutrients, and could be processed into raw material for bio-fertilizers media. Solid waste, known as ela sago, has been developed into compost while the liquid waste did not. The objective of this study was to verify volume ratio of liquid inoculant of Azotobacter chroococcum in solid inoculant produced from ela sago; and determine the concentration of sago waste water as a growth medium of biofertilizer A. chroococcum. This study confirms population of A.chroocccum and T. harzianum in ela sago compost reached 106 cfu/g and 108 cfu/g consecutively following enrichment with either 2% or 4% of A. chroococcum liquid inoculant. Sago wastewater can used support A.chroococcum growth. This study proved that waste from sago starch production could be used as a natural medium for biofertilizer.
KERUSAKAN TANAMAN PALA AKIBAT SERANGAN PENYAKIT BUSUK BUAH KERING DAN HAMA PENGGEREK BATANG PALA DI KECAMATAN LEIHITU KABUPATEN MALUKU TENGAH A Marthin Kalay; Jacobus S. A. Lamerkabel; Frances J. L. Thenu
Jurnal Agroekoteknologi Vol 7, No 2 (2015)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.906 KB) | DOI: 10.33512/j.agrtek.v7i2.1079

Abstract

Fungus Stigmina myristicae causes rot dried fruit disease and pest Batocera herculesstem borer on nutmeg plants are found in Central Maluku, Province Maluku as the cause of plant damage nutmeg. Surveys in the District Laitutu Maluku Central was conducted in August 2014 with the aim to determine the intensity of the large and spacious dried fruit rot disease and stem borer, and the greater the intensity of dried fruit rot disease on various strata in the nutmeg crop. The results showed that the intensity of dried fruit rot disease is more prevalent in the nutmeg in the middle and lower strata of plants reached 1.42% and 2.09%, and in general to be 1.24%, while the area of the attack reached 23.90%. The intensity of the attacks stem borer reaches 1.76% and spacious attacks reached 0.56%. These results indicate that the nutmeg crop damage by Stigmina myristicae and Batocera hercules classified low category.Keywork:Stigmina myristicae, Batocera hercules,Nutmeg, Stem borer, Dried fruit rot.
PERBANYAKAN Trichoderma harzianum PADA MEDIA BERBASIS ELA SAGU A. Marthin Kalay; Abraham Talahaturuson
Jurnal Agroekoteknologi Vol 6, No 2 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (110.106 KB) | DOI: 10.33512/j.agrtek.v6i2.205

Abstract

Trichoderma harzianum has been widely known as biological control agents of plant diseases. To obtain inoculum in large quantities waste agricultural products could be used as media. Ela sago is solid wastes originated from sago processing, contains C-organic, nitrogen, phosphorus, potassium, calcium, magnesium, as well as crude protein, fat, crude fiber, ash, cellulose, hemicellulose, lignin, and silica. The objective of this laboatory experiment was to determina the capacity of ela sagu in combination with rice bran and husks as T. harzianum inoculum production. The research was conducted in laboratorium Nemathology, Plant Pathology Agriculture Faculty of Pattimura University. The experiment was conducted from March to April 2014. The medium testedin this experiment were ela sago, ela sago + husk, ela sago + bran, ela sago + husk + bran, husk, bran, husk + bran, and corn. The experiment was set up by using a completely randomized design, replicated three times. The experimental results showed that the number of conidiumon mixed media ela sago + bran and ela sago + bran + husk reached up to 1011 per g media and significantly greater than that of ela sago, elasago + husk, Husk + bran, husk, bran, and corn media.
EFEK PEMBERIAN PUPUK HAYATI KONSORSIUM TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SAWI (Brassica juncea L.) A. Marthin Kalay; Reginawanti Hindersah
Jurnal Agroekoteknologi Vol 8, No 2 (2016)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/j.agrtek.v8i2.1486

Abstract

Fertilizer is one of the important limited factor in plant cultivation system. Biofertilizer is a kind of fertilizer which improve nutrient availability in soil and subsequently plant yield. A research was carried out in village Waiheru, District Baguala, Ambon to determine the effect of different level of mixed biofertilizer on the growth and yield of caisim that grown on Alluvial. The research used Randomized Completely Block Design (RCBD) with three concentration of liquid biofertilizer, namely: 0.1%, 0.5% and 1%. Treatment control was without biofertilizer. The results showed that inoculation of liquid biological fertilizer at concentration of 1% improved growth and yield of caisim higher than the concentration of 0.1% and 0.5%. Inoculation of 1% biofertilizer increased the fresh weight of caisim shoot up to 37.36% compared to that of controls. While, fresh weight of caisim with biofertilizer of 0.1% and 0.5% was 24.52% and 28.94% respectively.Keyword: Ambon, Mixed Biofertilizer, Caisim
Serangan Perenosclerospora spp Pada Tanaman Jagung Di Desa Rumahtiga, Kecamatan Teluk Ambon Baguala Kota Ambon Angel E Matruti; A. Marthin Kalay; Costanza Uruilal
Agrologia Vol 2, No 2 (2013): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v2i2.265

Abstract

Peronosclerospora spp. is one of the fungal pathogen that causes downy mildew on corn, and can cause yield losses up to 100%. Field research has been done  to determine the development of Perenosclerospora spp. attack and contributing factors on corn at  corn plantation in Rumahtiga village. The experiment was conducted by using survey method at local farmer’s plantation where they cultivated corn in Taeno Hamlet, Talaga Pange, Air Ali, and Wailela areas. The results showed that downy mildew development in corn reached 8.92% which is belong to low diseases intensity. Cultivation techniques including  the use of hybrid varieties C1,  appropriate fertilization, crop rotation and weed control, as well as good sanitation were key factors of low scale infestation of Peronosclerospora spp. 
Optimasi Produksi Inokulan Cair Trichoderma harzianum Berbasis Molase Reginawanti Hindersah; Wilhemina Rumahlewang; June A Putinella; A Marthin Kalay; Abraham Talahaturuson
Agrologia Vol 4, No 2 (2015): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v4i2.202

Abstract

Trichoderma harzianum as a potential biological agent and are widely used to control diseases in various agricultural crops and plantations. This research goal of getting the best growth of Trichoderma harzianum on molasses-based liquid medium. The treatments tested was added 0.05%, 0.1% and 1% liquid pure culture of Trichoderma harzianum each in 500 ml of sterile liquid medium containing 5% molasses (v/v) and 5% commercial yeast (b / v), and incubated for five days. The results showed that Trichoderma harzianum growth with the highest number of spores occur if the molasses-based liquid medium supplemented with 1% Trichoderma harzianum.
Ketersediaan Fosfat, Serapan Fosfat, Dan Hasil Tanaman Jagung (Zea mays L.) Akibat Pemberian Kompos Granul Ela Sagu Dengan Pupuk Fosfat Pada Inceptisols Maimuna La Habi; Jeanne Ivone Nendissa; Dessy Marasabessy; A. Marthin Kalay
Agrologia Vol 7, No 1 (2018): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v7i1.356

Abstract

Inceptisol is a young and newly developed soil so it needs to be optimized for crop cultivation. The aim of this research is to know the availability of soil P, P uptake and corn yield after application of granular composting of sago waste (KGES) together with phosphate fertilizer to Inceptisols soil. The experimental treatment was KGES which consisted of three levels: without KGES, 40 tons KGES ha-1, and 80 tons KGES ha-1, and the use of SP-36 (P) fertilizer consisting of three levels: without P fertilizer, 120 kg P ha-1, and 240 kg P ha-1. The experiment used a complete randomized design with 3 replications. The result of the experiment was analyzed variance and relationship test using interlaced analysis. The results showed that KGES together with phosphate fertilizers could increase soil pH causing phosphate to be available and plant roots could absorb nutrient phosphate well, so that the yield of corn kiln dry weight also increased. The highest yield of dry weight of grains (7.85 tons per ha) was obtained from a combination of 80 tons of KGES ha-1 and 240 kg P ha-1.Keyword: Keywords: Ella Sago, Inseptisols, maize, phosphate
The use of Trichoderma harzianum to control the Bottom Pathogenic Fungus of Rice Seed (Oryza zativa L.) from breeders in Waeapo District, Buru Regency Yohanis Sinay; A. Marthin Kalay; Maimuna La Habi
Agrologia Vol 11, No 1 (2022): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v11i1.1540

Abstract

Healthy seeds are needed to  support  the food crops growth and yield. This study was aimed to 1.  identify the types of pathogenic fungi on rice seeds in Waeapo District, Buru Regency; 2. Asses the fungal pathogen effect on the growth of rice cv Ciherang seedings; and 3. determine the ability of Trichodema harzianum to control those fungus and its effect on the germination of rice. The research consisted of foure stages, namely 1. Isolation and identification of the bottom pathogenic fungi of rice seeds; 2. Pathogenicity test of the pathogens; 3. Antagonistic test of T. harzianum against pathogens in vitro, and 4.  Bioassay of T. harzianum inoculation to pathogen-infected rice seeds. The research found that pathogenic fungi isolated from  rice seeds from breeders in Waeapo District were Mucor sp., Sclerotium sp., Aspergillus sp., Rhyzoctonia sp., and Drechslera sp., which cause  the rice seeds damage of  13.33 %, 10.37%, 11.85%, 11.11%, and 12.59% respectively. In vitro assay verified that T. harzianum was able to suppress the development of pathogens Mucor sp., Sclerotium sp., Aspergillus sp, Rhyzoctonia sp., and Drechslera sp. up to 46.99%, 67.48%, 55.83%, 55.42%, and 31, respectively. 60%. The inoculation of T. harzianum to infected rice seeds, reduced the rice damage by Mucor sp, Sclerotium sp, Aspergillus sp, Rhyzoctonia sp, and Drechslera sp, up to  79.14%, 18.72%, 17.97%, 18, respectively. 71% and 61.40% respectively.
Pengaruh Bahan Organik dan Azotobacter terhadap pertumbuhan Jagung di Tailing terkontaminasi merkuri dari Pulau Buru Reginawanti Hindersah; A. Marthin Kalay; Rafael Osok
Agrologia Vol 7, No 2 (2018): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v7i2.762

Abstract

Characteristics of mineral-mine tailings deposited in agricultural areas do not meet the requirements for food crop cultivation. The objective of the experiment was to obtain the information on the improvement of plant growth planted in mercury-contaminated tailings after adding organic matter and nitrogen fixing bacteria, Azotobacter. The greenhouse trial was set up in randomized factorial design which tested the Azotobacter inoculation consentrations and organic matter doses. There was no interaction effect between the two treatments on the growth of four-week old corn. Both organic matter and Azotobacter had a positive impact on vegetative growth of corn.