Penelitian ini bertujuan untuk mempelajari dan mengetahui pemberian dosis biochar sekam padi dan pupuk kandang ayam terhadap pertumbuhan dan hasil tanaman temulawak. Penelitian ini dilaksanakan di Desa Gading Kulon Kecamatan Dau, Malang Jawa Timur, dan berlangsung mulai bulan Mei sampai dengan Agustus 2014. Penelitian menggunakan Rancangan Acak Kelompok (RAK), dimana faktor pertama adalah Biochar Sekam Padi: B0, B1, B2, B3 dan faktor kedua Pupuk Kandang Ayam: P0, P1, P2, P3. Hasil analisis ragam menunjukkan bahwa biochar sekam padi tidak berpengaruh nyata terhadap semua parameter pengamatan. Perlakuan tanpa pupuk kandang ayam (P0) merupakan perlakuan yang memperoleh hasil terbaik dibandingkan perlakuan P1, P2, P3. Interaksi perlakuan tidak menunjukkan hasil yang nyata terhadap semua parameter pengamatan.
Penelitian ini bertujuan untuk mempelajari pengaruh pupuk urea dan pupuk KCl terhadap pertumbuhan dan hasil labu kuning. Penelitian dilaksanakan di Desa Bawang Kelurahan Tunggul Wulung Kota Malang dan berlangsung dari bulan pebruari sampai juni 2014. Penelitian mengunakan Rancangan Petak Terbagi (Split Plot Design) dimana pupuk urea sebagai meanplot terdiri dari N1, N2, N3 dan pupuk KCl sebagai subplot terdiri dari K1, K2, K3. Hasil analisis ragam menunjukan perlakuan pupuk nitrogen berpengaruh nyata terhadap parameter panjang batang, luas daun, umur berbunga, jumlah buah perpetak, bobot buah pertanaman, bobot buah perpetak dan bobot buah perhektar. Pada Parameter pengamatan vegetatif, dosis perlakuan pupuk urea 100 kg/ha memberikan hasil terbaik dengan panjang batang umur 42 hst sebesar 176.48 cm dan luas daun 292.42 cm2, sedangkan perlakuan pupuk KCl berpengaruh terhadap luas daun umur 14 hst dengan dan dosis 50 kg/ha memberikan respon yang baik terhadap luas daun dan menghasilkan luas daun sebesar 47.14 cm2. Pada fase pengamatan generatif, perlakuan pupuk urean dosis 100 kg/ha menghasilkan umur berbungan rata-rata 58.56 hari, bobot buah per tanaman mengahasilakan bobot sebesar 1.34 kg. Interaksi perlakuan terdapat pada dosis perlakuan 150 kg urea/ha dan 50 kg KCl/ha dengan menghasilkan bobot buah perpetak sebesar 16.32 kg dan sedangkan untuk perhektarnya mengahasilkan bobot buah sebesar 29.50 ton/ha.
Eggplant is a vegetable plant that has a shape and color that diverse and widely cultivated in tropical and subtropical climates (mountain areas). The purpose of this study is to determine and study the effect of the optimal dose of fertilizer or compost to plant eggplant purple. The research was conducted in the village of Tlogowulan, Lowokwaru, Malang, East Java, which began in February to May 2014 in the study design environment using single factor RAK with 5 treatments and 4 replications, while the dose of the treatment applied is 4 levels of compost and 1 control. Parameters observed plant height, number of leaves, fruit weight and fruit weight per hectare plantation. If the results of analysis of variance was significantly different then followed by LSD test level of 5%. The results showed treatment of municipal solid waste compost significantly affect plant height (2, 4, 6, 8, 10 and 12 mst), number of leaves (4, 6, 8, 10 and 12 mst), planting fruit weight (10 and 12 mst) and fruit weight per hectare (12 mST). Municipal solid waste compost dose that gives the highest yield for each parameter eggplant purple plant is 1000 grams / plant.
Heavy metal pollution in agricultural land threatens soil and food quality. Soil pollution could be remediate using biochar, but the effectiveness of biochar on soil quality improvement is determined by types of feedstock and pyrolysis temperature. This study was aimed to explore the effect of different types of biochar on soil properties.Â Biochar from rice husk and tobacco waste was applied to soil contaminated with lead and mercury. This study was conducted at Sumber Brantas, Malang East Java, and used a completely randomized design with three replicates. Heavy metals content was measured using AAS. The results of measurements were analyzed using analysis of variance at 5% and 1% significance levels. The initial analysis of the soil properties at the research site showed that the soil nutrient status was low, i.e. N (0.2 %), K (0.50 cmol+/kg), and CEC (5.9 me/100g) respectively, but soil pH was neutral (6.8). The research site also has crossed the threshold of heavy metal content for Hg (0.5 ppm), Pb (25.22 ppm), Cd (1.96 ppm), and As (0.78 ppm). Biochar added had a positive influence on soil characteristics improvement. It could increase the content of organic C, i.e. 35.12% and 31.81% and CEC (cation exchange capacity), i.e.30.56 me/100g and 28.13 me/100 g for rice husk biochar and tobacco waste biochar, respectively.Â However, N, P, and K contents were low i.e. N ( 0.33 and 0.30 %); P2O5 (148.79 and 152 ppm); K (1.58 and 2.11 mg/100g) for rice husk biochar and tobacco waste biochar, respectively.
Phytoremediation has been intensively studied due its costs effectiveness and environmentally sound. Studies of heavy metal pollution phytoremediation has been done in develop countries, but still limited in Indonesia. This study aims to explore the potential of wild plant species Eleusine indica L. and Sonchus arvensis L. as an agent of phytoremediation on Cd-contaminated soil. This study was done descriptively in Pujon, Malang, Indonesia, to test the ability of two species of wild plants E. indica and S. arvensis in absorbing Cd. Along this research, plant growth and the concentration of Cd in roots, stems and leaves, was monitored. Plant growth was measured every week for three months. The plant roots, stems, and leaves collected separately, then analyzed its Cd levels. The results showed that both of two species of wild plants grew well on soil contaminated Cd. Plant roots can accumulate higher Cd than the stem part. In addition, E indica has the ability to accumulate Cd higher than S. arvensis, i.e. 57.11% and 35.84%, respectively
The occurrence of pollution in mangrove land is due to changes in physical, chemical and biological properties of water because of the increasing human activities that produce problems due to residential and industrial wastes and other related activities, or due to seawater tide. The existence and presence of residential and industrial wastes in soil sediments can disturb the environment that in turn will threaten mangroves growth. This study was aimed to reveal the presence of heavy metals in sediment shown by environmental changes of water polluted by residential and industrial wastes. The study was conducted in field plots located at five watershed areas of Andil, Porangan, Kacar, Gombal and Krondo in Tambak Lekok Village of Pasuruan District, East Java. Field exploration and observation was started from waterfront and riverside vegetations. The exploration was made 300 m toward inland, perpendicular to the edge of the waters. The sediment samples of mangrove stands were collected at three points for each plot. The thickness of the collected sediment samples was Â± 10 cm from the surface. Sediment samples were analyzed for heavy metals (Pb, Cr, Zn and Cu) and texture. The results showed that the Pb severely polluted the Gombal watershed with a concentration of 7.24mg/kg. The lowest Pb concentration of 7.24 mg/kg was observed for Andil watershed. Except for Andil watershed, Cu heavily polluted all the watersheds studied
This study aims to determine the effect of the application of biochar and potassium fertilizer on the increase in sweet potato yield of Antin 2 variety which was carried out in the Research Station of Brawijaya University, Jatikerto Village, Kromengan District, Malang Regency in March â July 2017.This study used a Randomized Block Design (RBD), which consists of two factors. The first factor is the application of biochar doses, namely: B0 (without biochar), B1 (with biochar at a dose of 2.5 tons / ha), B2 (with biochar at a dose of 5 tons / ha), and B3 (with biochar at a dose of 7.5 tons/ ha); The second factor is the dose of KCl, namely K0 (without KCl fertilization), K1 (KCl fertilization with a dose of 50 kg KCl / ha), K2 (KCl fertilization with a dose of 100 kg KCl / ha), and K3 (KCl fertilization with a dose of 150 kg KCl / ha).The variables observed included: the storage root numbers, fresh weight of storage root, fresh vines weight, % storage root dry matters, % dry matters of vines, storage root dry weight, vines dry weight, biomass dry weight, harves index (%), estimation of storage root yield (t/ha), and estimation of vines yield (t/ha). The results showed that giving a dose of biochar affect the storage root numbers, % storage root dry matters, storage root dry weight, and harves index (%), but did not affect the fresh weight of storage root, fres vines weight, estimation of storage root yield, and estimation of vines yield. Potassium gave effect to the storage root numbers, fresh weight of storage root, % storage root dry matters, storage root dry weight, and estimation of storage root yield, but did not affect the fresh vines weight, % dry matters of vines, harves index (%), and estimation of vines yield.
Penelitian ini bertujuan untuk mengetahui pengaruh pengaplikasian biochar dan pupuk kalium terhadap peningkatan hasil ubijalar Varietas Antin 2yang dilaksanakan di Kebun Percobaan Agroteknopark Universitas Brawijaya, Desa Jatikerto, Kecamatan Kromengan, Kabupaten Malang pada Bulan Maret â Juli 2017.Penelitian ini menggunakan Rancangan Acak Kelompok (RAK), yang terdiri dari dua faktor. Faktor pertama adalah pemberian dosis biochar, yaitu: B0 (tanpa pemberian biochar), B1 (pemberian biochar dengan dosis 2,5 ton/ha), B2 (pemberian biochar dengan dosis 5 ton/ha), dan B3 (pemberian biochar dengan dosis 7,5 ton/ha); Faktor kedua adalah pemberian dosis KCl, yaitu K0 (tanpa pemupukan KCl), K1 (pemupukan KCl dengan dosis 50 kg KCl/ha), K2 (pemupukan KCl dengan dosis 100 kg KCl/ha), dan K3 (pemupukan KCl dengan dosis 150 kg KCl/ha).Variabel yang diamati meliputi : jumlah umbi/gulud, bobot segar umbi (kg/gulud), bobot segar brangkasan (kg/plot), % bobot kering umbi, % bobot kering brangkasan, bobot kering umbi (kg/gulud), bobot kering brangkasan (kg/gulud), bobot kering biomassa (kg/gulud), Indeks Panen (%), estimasi hasil umbi (t/ha), dan estimasi hasil brangkasan (t/ha).Berdasarkan hasil penelitian menunjukkan bahwa, pemberian dosis biochar berpengaruh terhadap jumlah umbi, % bobot kering umbi, bobot kering umbi, dan indeks panen (%), namun tidak berpengaruh terhadap bobot segar umbi, bobot segar brangkasan, estimasi hasil umbi, dan estimasi hasil brangkasan. Pemberian kalium berpengaruh terhadap jumlah umbi, bobot segar umbi, % bobot kering umbi, bobot kering umbi, dan estimasi hasil umbi, namun tidak berpengaruh terhadap bobot segar brangkasan, % bobot kering brangkasan, indeks panen (%), dan estimasi hasil brangkasan.
A study that was aimed to determine the effects of IAA and BA concentrations on number of shoot at multiplication phase of barangan banana, was conducted at Plant Tissue Culture Laboratory of Tribhuwana Tunggadewi University from October 2007 to January 2008. Treatment combinations of three levels of IAA, i.e. 0,0 mg/l; 0,15 mg/l and 0,30 mg/l, and three levels of BA, i.e. 4,0 mg/l; 4,5 mg/l and 5,0 mg, were arranged in a completely randomized design with three replicates. Results of this study indicated that there was interaction effect of IAA and BA to shoot variable at 6, 8, 10 and 12 weeks after sub culture application. Combination of concentration IAA 0,0 mg/l and BA 4,0 mg/l (I0 B1) achieved highest shoot number. But there was no significant effect of I0B2 and I1B3 treatments. The fastest shoot growth was observed for application of BA 4,0 mg/l, and BA 4,5 mg/l
The objective of this experiment was to isolate Rhizobium bacteria from soybean and to study the effect of inoculation of the isolated indigenous bacteria on soybean growth. Six treatments comprising TA (Entisol control), TaI1 (Entisol+Rhizoplus), TaI2 (Entisol +Rhizobium indigenous), KB (Inceptisol control), TbI1 (Inceptisol+Rhizoplus), TbI2 (Inceptisol+ indigenous Rhizobium) were arranged in a completely randomized design with three replicates. Results of this study indicated that; (1) morphology of Rhizobium was shape of colony, around white, and phlegm, total colony of Rhizobium indigenous are 130 x 107 cuff/ml (2) indigenous Rhizobium had higher influence than Rhizoplus to the total of the root-nodule, the weight of dry nodule, the high of the plant, and pH, the N-total of soil, and the N-total of plant are good at an Entisol and an Inceptisol
The objectives of this research was leaning and finding the consentrade of IAA (Indole Acetic Acid) on vegetative growth of Phalaenopsis sp. The research used a randomly completely block design consisting of five treatments on level IAA consentration : 0 mg/l (A0), 100 mg/l (A1), 200 mg/l (A2), 300 mg/l (A3) and 400 mg/l (A4). Every treatment was replicated five times. The observed parameters included the amount of increasing leaves, the length and width of lives, the amount of increasing roots and the length of increasing roots. The results showed that the consentrade 400 mg/l IAA was the most appropriate consentrade to stimulated on vegetative growth of Phalaenopsis sp. The length of increasing leaves was 0,93 cm and the amount of increasing roots was 3,90