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All Journal Bumi Lestari Bionatura Jurnal Lahan Suboptimal Jurnal Natur Indonesia Jurnal Ilmu-Ilmu Pertanian Indonesia Journal of Degraded and Mining Lands Management Fakultas Pertanian Jurnal Penelitian Pertanian Terapan Kultivasi Caraka Tani: Journal of Sustainable Agriculture JPM (Jurnal Pemberdayaan Masyarakat) TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) BUANA SAINS Agro Bali: Agricultural Journal Ihsan: Jurnal Pengabdian Masyarakat Society : Jurnal Pengabdian dan Pemberdayaan Masyarakat JAPI: Jurnal Akses Pengabdian Indonesia

Edyson Indawan

Program Studi Agroteknologi, Fakultas Pertanian, Universitas Tribhuwana Tunggadewi

Author-ID : 286663

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Nursing Physics Public Health Social Sciences Other

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UJIDAYA HASIL PENDAHULUAN KLON-KLON UBIJALAR (Ipomoea Batatas L.) BERDAGING UNGU Hidayat, Fariz Nur; Lestari, Sri Umi; Indawan, Edyson
Fakultas Pertanian Vol 5, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

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Selection to be implemented on the ground tuber yield entrisol Wringinsongo Village Tumpang subdistrict Malang. Randomized block design MK II, 2014. Materials studied as much as 40 purple sweet potato clones, divided into three blocks, and each block planted three varieties (check). Each clone planted 20 plants by bunds. Phonska fertilized gived with a dose of 300 kg / ha. Characters are observed are the number and weight of tuber by mound, tuber dry matter content, color of skin, flesh, the uniformity of the shape and size of the tuber. Selection purposes is to obtain clones of sweet potato varieties with the above results Antin 3 and have high anthocyanin score >5. Chosen 12 clones with the tuber yield 24.38 to 33.75 kg / ridges (from 19.50 to 27.00 t / ha), namely RIS 10053-01, 10233-01 RIS, MSU 10001-08, 10003-54 MSU, MSU 10010-50, 10010-80 MSU, MSU 10017-02, 10018-39 MSU, MSU 10021-26, MSU 10025-29, 10031-12 MSU and MSU 10031-16. Retrieved 4 clones were selected with high anthocyanin levels are RIS 10233-01 (U6 dark), MSU 10001-08 (U7 very dark), MSU 10010-50 (U6 dark), and MSU 10018-39 (U6 dark). Seleksi untuk hasil umbi dilaksanakan pada tanah entrisol Desa Wringinsongo Kecamatan Tumpang, Kabupaten Malang menggunakan rancangan acak kelompok MK II 2014. Bahan yang diteliti sebanyak 40 klon ubijalar ungu, dibagi menjadi tiga blok dan masing-masing blok ditanam tiga varietas pembanding (cek). Setiap klon ditanam 20 tanaman per guludan.Pertanaman dipupuk Phonska dengan dosis 300 kg/ha. Karakter yang diamati adalah jumlah dan bobot umbi per guludan,kadar bahan kering umbi, warna kulit, daging, serta keseragaman bentuk dan ukuran umbi. Tujuan seleksi adalah untuk mendapatkan klon-klon ubijalar dengan hasil di atas varietas Antin 3 dan memiliki skor antosianin tinggi >5.Terpilih 12 klon dengan hasil umbi 24,38?33,75 kg/guludan (19,50?27,00 t/ha) yaitu RIS 10053-01, RIS 10233-01, MSU 10001-08, MSU 10003-54, MSU 10010-50, MSU 10010-80, MSU 10017-02, MSU 10018-39, MSU 10021-26, MSU 10025-29, MSU 10031-12, dan MSU 10031-16. Diperoleh 4 klon yang terpilih dengan level antosianin tinggi adalah RIS 10233-01 (U6 gelap), MSU 10001-08 (U7 sangat gelap) ,MSU 10010-50 (U6 gelap), dan MSU 10018-39 (U6 gelap).

EVALUASI TANAMAN UBIJALAR PADA ALFISOL Wendo, Consianus; Indawan, Edyson; Agastya, I Made Indra
Fakultas Pertanian Vol 6, No 2 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

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The decline in the fertility rate of intensive agricultural land and the deterioration of environmental quality has resulted in lower supply of food. The focus of agricultural development is partly directed to ensure sustainable food availability, both quantity and quality. Land use whose quality or designation is not in accordance with the suitability of the land will cause failure or damage to the land resources. Increased production of sweet potato continues to be cultivated, one of which is through evaluation of sweet potato plants on Alfisol soil. Alfisol is a type of soil that is quite potential for agriculture. The study aimed to determine the potential yield of sweet potato plants on Alfisol soil. The experiment was conducted using a Randomized Block Design with 3 replications, 13 sweet potato clones namely Kuning Putih, BIS OP-61-OP-22, 73-6/2, Beta 1, Beta 2, Kuning Merah, 73 OP-8, BIS OP- 61, 73 OP-5, Sari, Boko, Jago, BIS OP-61-?-29 and Sub Plots: Biochar (B0 = Without Biochar, B1 = 5 tons/ha). The variables observed included: the number of tubers/plots, fresh weight of tubers (kg/plot), fresh weighted stem (kg/plot),% dry weight of tubers,% dry weight of stover, tuber tuber, and BK stover. analysis using Randomized Block Design. The results of the study it can be concluded that: The best clones/varieties on tuber yield were BIS OP-61-?-29 varieties which showed the highest protein of 3.86% (without biochar), while the starch content was 75.07% in varieties 73 OP-8 (biochar 5 tons/ha). The best biochar dose is at a dose of 5 tons/ha on the number of tubers/plots as much as 39.36 tubers/ in Alfisol soil. Penurunan tingkat kesuburan lahan pertanian intensif dan memburuknya kualitas lingkungan telah mengakibatkan pasokan bahan pangan yang lebih sedikit. Fokus pengembangan pertanian sebagian diarahkan untuk memastikan ketersediaan pangan berkelanjutan, baik kuantitas maupun kualitas. Penggunaan lahan yang kualitas atau peruntukannya tidak sesuai dengan kesesuaian lahan akan menyebabkan kegagalan atau kerusakan pada sumber daya lahan. Peningkatan produksi ubi jalar terus dibudidayakan, salah satunya adalah melalui evaluasi tanaman ubi jalar di tanah Alfisol. Alfisol adalah jenis tanah yang cukup potensial untuk pertanian. Penelitian ini bertujuan untuk mengetahui potensi hasil tanaman ubi jalar pada tanah Alfisol. Percobaan dilakukan menggunakan Rancangan Acak Kelompok dengan 3 ulangan, 13 klon ubi jalar yaitu Kuning Putih, BIS OP-61-OP-22, 73-6 / 2, Beta 1, Beta 2, Kuning Merah, 73 OP-8, BIS OP- 61, 73 OP-5, Sari, Boko, Jago, BIS OP-61-?-29 dan Sub Plot: Biochar (B0 = Tanpa Biochar, B1 = 5 ton / ha). Variabel yang diamati meliputi: jumlah umbi / petak, bobot umbi segar (kg / petak), batang berbobot segar (kg / petak),% berat kering umbi,% berat kering brangkasan, umbi umbi, dan BK stover. analisis menggunakan Rancangan Acak Kelompok. 5%. Hasil penelitian dapat disimpulkan bahwa: Klon / varietas terbaik pada hasil umbi adalah BIS OP-61-?-29 varietas yang menunjukkan protein tertinggi 3,86% (tanpa biochar), sedangkan kandungan pati adalah 75,07%. % dalam varietas 73 OP-8 (biochar 5 ton / ha). Dosis biochar terbaik hasil umbi adalah dengan dosis 5 ton / ha pada jumlah umbi / petak sebanyak 39,36 umbi / di tanah Alfisol.

Komposisi Mangrove pada Lahan Tercemar BTEX dan Logam Berat Indawan, Edyson; Ahmadi, Kgs.; Novitawati, Retno Ayu Dewi
Jurnal Natur Indonesia Vol 14, No 3 (2012)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

The study was aimed to gasp inventory an expired plant mangrove species characteristic respectively collection specimen land us function BTEX and heavy metal at growth environment. The study held from April through November 2007. Design with two classes, Rank I : survey activities and explored in land for quantity and identification, Rank II : Analysis totality solid matter petroleum level BTEX and heavy metal situ by research in location. The results of mangrove identification (main component, supporting component, and associated mangrove) showed there are 11 families and 25 species. BTEX parameter from soil sample was detected benzene intensive contamination on Andil river (16.30 ppm), Porangan river (81.30 ppm), Gombal river (56.90 ppm), Kacar river (36.90 ppm) but it was not detected on Krondo river. Toluene intensive contamination Porangan river (824 ppm) and Kacar river (896 ppm). BTEX parameter from water sample was detected benzene intensive contamination on Andil river (24.30 ppm), Porangan river (8.13 ppm), Gombal river (20.30 ppm), Kacar river (8.13 ppm), Krondo river (8.13 ppm), and Toluene contaminate slightly. Ethylbenzene and xilene were not detected by gas chromatography. Soil medium showed that contamination mainly Pb on Gombal river (5.98 mg/Kg), Kacar river (7.24 mg/Kg) and Krondo river (6.43 mg/Kg), where are Andil river and Porangan river were only slightly contaminated. The metal occurred on Cu for all, except Andil river (6.22 mg/Kg), whereas Zn and Cr did not contaminate, while Ag and Cd were not detected. Water medium was not contaminated by Pb, Cd, Cr, and Zn, furthermore Ag and Cu were not detected

KERAGAAN UBI JALAR [IPOMOEA BATATAS (L) LAM.] AKIBAT PEMBERIAN BIOCHAR JENGKOK TEMBAKAU Lein, Johanes; Indawan, Edyson; Sumiati, Astri
Fakultas Pertanian Vol 7, No 3 (2019)
Publisher : Universitas Tribhuwana Tunggadewi

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Sweet potatoes including tuber commodities that have important prospects. Due to the high content of nutrients, minerals, vitamins and the increasing diversity of processed and industrial products sourced from sweet potatoes. The improvement of sweet potato production is still being carried out, one of the improvements in soil improvement. Provision of biochar into the soil can increase the availability of the main ratio, P and N concentrations in the soil. Increased CEC and soil pH can increase 40% Biochar's ability to bind water and nutrients in the soil helps prevent fertilizer losses due to surface erosion and washing so as to enable fertilizer savings. This study aims at agronomic performance in sweet potato plants due to biochar administration. The experiment was carried out using splitplots with 3 replications, 7 varieties namely: white brass, red brass, Beta 1, Beta 2, Sari, Boko, Jago and Biochar Dose: (Bo = No Biochar, B1 = 5 tons / ha). Variables observed included: number of tubers / plot, tuber fresh weight (kg / plot), freshly squeezed weight (kg / plot),% tuber dry weight (BK) tubers,% tuberous dry weight, tuber BK weight, and stover BK. Continued testing with the smallest Real Difference Test (LSD) with a confidence level of 5% based on research shows that the performance of yarbaik varieties in tubers is Beta 1 with the number of tubers / plots of 39.67 tubers, Beta 2 at tuber weights of 8.60 kg / plant , Beta 1 10.92 kg / fresh weight crop of stover, Sari and Beta 2 at harvest index are 92.25 and 88.81 tubers. Ubi jalar termasuk komoditas umbi-umbian yang mempunyai prospek penting. Karena tingginya kandunggan nutrisi, mineral, vitamin dan semakin beragamannya produk olahan maupun industri yang bersumber dari ubi jalar. Peningkata produksi ubi jalar masih terus dilakukan, salah satu perbaikan pembenahan tanah. Pemberian biochar ke dalam tanah dapat meningkatkan ketersediaan katioan utama, P dan konsentrasi N dalam tanah. Peningkatan KTK dan pH tanah dapat meningkat 40% Kemampuan biochar untuk mengikat air dan unsur hara dalam tanah membantu mencegah terjadinya kehilangan pupuk akibat erosi permukaan dan pencucian sehingga dapat memungkinkan penghematan pemupukan. Penelitian ini bertujuan keragaan agronomi pada tanamanubi jalar akibat pemberian biochar. Percoban di laksanakan dengan menggunakan splitplot denang 3 ulangan, 7 varietas yaitu: Kuningan putih, kuningan merah, Beta 1, Beta 2, Sari, Boko, Jago dan Dosis Biochar : (Bo= Tanpa Biochar, B1=5 ton/ha). Variabel yang di amati meiputi: jumlah umbi/plot, bobot segar umbi (kg/plot), bobot segar berangkasan (kg/plot), % bobot kering (BK) umbi, % bobot kering berangkasan, BK umbi, dan BK brangkasan. Pengujian lanjutan denagn Ujian Beda Nyata terkecil (BNT) dengan taraf kepercayaan 5% berdasarkan penelitian menunjukkan bahwa keragaan Varietas yarbaik pada umbi yaitu Beta 1 dengan jumlah umbi/plot sebanyak 39,67 umbi, Beta 2 pada bobot umbi sebesar 8,60 kg/tanaman, Beta 1 10,92 kg/pertanaman berat segar brangkasan, Sari dan Beta 2 pada indeks panen yaitu 92,25 dan 88,81 umbi.

Respons pertumbuhan dan hasil tanaman mentimun terhadap aplikasi pupuk NPK dan pupuk organik cair kaya fosfat Hidayati Karamina; Edyson Indawan; Ariani Trisna Murti; Tri Mujoko
Kultivasi Vol 19, No 2 (2020): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v19i2.26316

AbstrakSalah satu teknologi untuk meningkatkan produktivitas mentimun yaitu dengan aplikasi pemupukan. Penelitian bertujuan untuk menentukan pengaruh pupuk NPK dan pupuk organik cair yang kaya fosfat terhadap pertumbuhan vegetatif tanaman dan hasil dari tanaman mentimun. Penelitian ini dilaksanakan bulan Maret sampai Mei 2017 di kebun petani, Kelurahan Tlogomas, Kota Malang. Rancangan percobaan yang digunakan ialah Rancangan Acak Kelompok Faktorial yang terdiri dari dua faktor dan diulang 3 kali. Faktor pertama adalah dosis pupuk NPK, terdiri dari 4 taraf, yaitu 100 kg ha-1, 200 kg ha-1, 300 kg ha-1 dan 400 kg ha-1. Faktor kedua adalah dosis pupuk organik cair, terdiri dari 3 taraf, yaitu 100 cc L-1, 150 cc L:-1 dan 200 cc L-1. Pupuk organik cair terbuat dari campuran daun lamtoro dan air seni kambing. Adapun variabel pengamatan yang diamati yaitu tinggi tanaman, jumlah daun, dan berat buah. Hasil penelitian menunjukkan bahwa tidak ada interaksi antara pupuk NPK dan pupuk organik cair. Bobot buah mentimun tertinggi dicapai pada aplikasi pupuk NPK dengan dosis 200 kg ha-1sedangkan pada aplikasi pupuk organik cair dengan dosis 100 cc L-1Kata kunci : NPK, Pupuk organik cair, Mentimun.AbstractOne of the technologies to increase cucumber productivity is fertilization application. The aim of this study was to determine the effect of NPK and high phosphate liquid organic fertilizers on vegetative growth and yield of cucumber plants. This research was conducted from March to May 2017 in the farmer's garden, Tlogomas Village, Malang City. The experimental design used factorial randomized block design that consisted of two factors and repeated 3 times. The first factor was NPK fertilizer doses, that consisted of 4 levels, there were 100 kg ha-1, 200 kg ha-1, 300 kg ha-1 and 400 kg ha-1. The second factor was organic liquid fertilizer doses, that consisted of 3 levels, there were 100 cc L-1, 150 cc L-1 and 200 cc L-1. Organic liquid fertilizer was made from Leucaena leucocephala leaves and goat urine. The observed variables were plant height, number of leaves, and fruits weight. The results showed that there was no interaction between NPK and liquid organic fertilizers. The highest cucumber fruit weight was achieved in the application of NPK fertilizer at a dose of 200 kg ha-1 while in the application of liquid organic fertilizer at a dose of 100 cc L-1.Keyword : NPK fertilizer, Organic liquid fertilizer, cucumber

Perbedaan karakter hasil tiga varietas ubi jalar berdasarkan waktu panen Reza Prakoso Dwi Julianto; Edyson Indawan; Sukma Paramita
Kultivasi Vol 19, No 3 (2020): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v19i3.29440

Sari Ubi jalar (Ipomoea batatas L. (Lam)) merupakan jenis tanaman pangan yang mempunyai kandungan utama karbohidrat, selain itu juga mempunyai kandungan lain yang cukup tinggi seperti kalium, kalsium, protein, vitamin A, dan vitamin C. Masalah utama dalam pengembangan ubi jalar adalah rendahnya hasil dan kualitas hasil yang disebabkan oleh waktu panen yang tidak tepat. Pemanenan yang dilakukan secara tidak tepat akan menurunkan kuantitas dan kualitas hasil. Perbedaan waktu panen juga disebabkan perbedaan varietas tanaman. Tujuan penelitian ini adalah mengetahui waktu panen yang optimal dari masing-masing varietas ubi jalar agar mendapatkan produksi hasil yang optimal. Penelitian dilaksanakan pada bulan Maret – September 2019. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok Faktorial. Perbedaan varietas sebagai faktor pertama terdiri dari 3 taraf meliputi : kuningan putih, beta-2, dan kuningan merah, sedangkan faktor kedua yaitu waktu panen terdiri dari 3 taraf meliputi : 90, 120, dan 150 hari setelah tanam. Semua kombinasi perlakuan diulang sebanyak 3 kali. Parameter pengamatan meliputi: jumlah ubi, bobot segar ubi, bobot segar brangkasan, bobot kering ubi, bobot kering brangkasan, persentase bobot kering ubi, persentase bobot kering brangkasan, bobot kering biomassa, dan indeks panen. Hasil penelitian menunjukkan waktu panen terbaik untuk varietas kuningan putih, beta-2, dan kuningan merah yaitu pada 150 hst. Hasil analisis korelasi yang menunjukkan hubungan korelasi positif dan sangat nyata dengan parameter hasil adalah jumlah ubi, bobot segar ubi, bobot kering ubi, dan bobot kering biomassa.Kata Kunci: ubi jalar, waktu panen, varietas Abstract Sweet potato (Ipomoea batatas L. (Lam)) is a food crop which has the main content of carbohydrates, besides it has other nutrients such as potassium, calcium, protein, vitamin A, and vitamin C. The main problem in development sweet potato are low yield because of incorrect harvest time. Incorrectly harvesting reduce the quantity and quality of yield. The difference harvest time is caused by differences in plant varieties. The research aimed to determine the optimal harvest time of each sweet potato variety to get optimal yield. The research was conducted in March - September 2019. The experimental design used a factorial randomized block design. The difference varieties as the first factor consisted of 3 levels: kuningan putih, beta-2, and kuningan merah, and harvest time as the second factor consisted of 3 levels: 90 , 120, and 150 days after planting. All treatment combinations were replicated 3 times. Observation parameters include: tuber number, tuber fresh weight, shoot fresh weight, tuber dry weight, shoot dry weight, tuber dry matter percentage,shoot dry matter percentage, biomass dry mater, and harvest index. The results showed that the best harvest time for all varieties was 150 dap. Results of correlation analysis showed positive correlation between yield with the number of tubers, fresh weight of tubers, dry weight of tubers, and dry weight of biomass.Keywords : sweet potato, harvest time, varieties

KAJIAN KOMUNITAS MANGROVE AKIBAT PERUBAHAN FUNGSI LAHAN DAN PENCEMARAN MINYAK DI DESA TAMBAK LEKOK KABUPATEN PASURUAN Edyson Indawan -; Kgs. Ahmadi -
Bionatura Vol 10, No 3 (2008): Bionatura Nopember 2008
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan

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Penelitian bertujuan untuk mengungkap jenis-jenis tanaman Mangrove dan luas lahan yang berubah fungsi serta tingkat pencemaran (BTEX dan Logam berat) pada lingkungan tumbuh. Hasil penelitian terhadap identifikasi jenis tanaman Mangrove (Komponen utama, komponen tambahan dan assosiasi Mangrove) didapat 11 famili dengan 25 species. Parameter BTEX dari sampel tanah menunjukkan terjadi pencemaran berat Benzene pada Plot A (16,30 ppm), Plot B (81,30 ppm), Plot C (56,90 ppm), Plot D (36,90 ppm) sedangkan Plot E tidak terdeteksi. Toluen tercemar berat pada Plot B (824 ppm) dan Plot D (896 ppm). Parameter BTEX dari sampel air menunjukkan terjadi pencemaran berat Benzene pada Plot A (24,30 ppm), Plot B (8,13 ppm), Plot C (20,30 ppm), Plot D (8,13 ppm), Plot E (8,13 ppm) dan Toluen tercemar ringan. Ethylbenzene dan Xylene tidak terdeteksi oleh Kromatografi Gas. Media tanah tercemar berat terutama logam Pb pada Plot C (5,98 mg/kg), Plot D (7,24 mg/kg) dan Plot E (6,43 mg/kg), sedangkan Plot A dan Plot B hanya tercemar ringan. Logam Cu tercemar berat pada semua Plot, kecuali pada Plot A (6,22 mg/kg), sedangkan logam Zn, Cr tidak tercemar serta logam Cd dan Ag tidak terdeteksi. Media air menunjukkan tidak terjadi pencemaran logam Pb, Cd, Cr dan Zn, selanjutnya logam Ag dan Cu tidak terdeteksi. Kata Kunci : Jenis tanaman Mangrove, pencemaran, BTEX, Logam berat.

Pemberian Biochar Jengkok Tembakau untuk Meningkatkan Hasil Ubijalar pada Lahan Kering Sub-Optimal Edyson Indawan; Sri Umi Lestari; Nurita Thiasari
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 1 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Indawan et al, 2019.Â Increasing Sweet Potato Yield on Biochar Amendment Application on Sub-Optimal Dry Land. JLSO 8(1):47-56.Â Biochar is a soil amendment that can improve soil fertility, increase crop yield and can reduce contamination. This study aim to evaluate the sweet potato response to biochar application from tobacco industry waste. The combination of cultivar and dose of biochar implemented using a Split Plot Experiment Design with three replications. The cultivars placed 0n main plots and biochar doses on sub-plots. The thirteen cultivars covering 7 varieties (Kuningan Putih, Beta 1, Beta 2, Kuningan Merah, Sari, Boko, and Jago) plus six accession from Unitri and Brawijaya University collections (BIS OP-61-OP-22 , 73-6 / 2, 73 OP-8, BIS OP-61, 73 OP-5, and BIS OP-61-â™€-29). The biochar dose used was B0 (0 t / ha) and B1 (5 t / ha). The experimental unit is measuring 5 m x 0.6 m, consisting of single row and planted with a spacing of 25 cm in row or 20 cuttings/row). The storage root numbers, storage root weight, % dry matter, Harvest Index (HI) and yields estimation are ditermined. The results showed that sweet potato cultivars gave a significant response to biochar application on fresh storage root weight, dry storage root weight, biomass dry weight, HI and storage root yields, but no interaction between cultivars and biochar doses. Storage root yield range of 8 - 21 t / ha without biochar and 10 - 23 t / ha with biochar 5 t / ha, except for Beta 1 and Boko. The use of biochar of 5 t / ha can increase storage root yields ranging from 8 - 45%.

Quality assessment of mangrove growing environment in Pasuruan of East Java Edyson Indawan; Ricky Indri Hapsari; Kgs Ahmadi; Dian Noorvy Khaerudin
Journal of Degraded and Mining Lands Management Vol 4, No 3 (2017)
Publisher : Brawijaya University

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 ± 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

Sweet potato response to biochar application on sub-optimal dry land Edyson Indawan; Sri Umi Lestari; Nurita Thiasari
Journal of Degraded and Mining Lands Management Vol 5, No 2 (2018)
Publisher : Brawijaya University

This trial was aimed to evaluate the performance of sweet potato cultivars on biochar application. The treatments were carried out using a Split-plot Design with three replications. The cultivars were placed on main plots and biochar doses were on sub-plots. The thirteen cultivars consisted of seven varieties and six accessions from Tribhuwana Tunggadewi University and Brawijaya University collections. The applied biochar doses were B0 (0 t/ha) and B1 (5 t/ha). The experimental unit measuring of 5 m x 0.6 m consisted of single row and planted with a spacing of 25 cm in row or 20 cuttings/row. The storage root weight, % dry matter, storage root dry weight, dry weight of biomass, harvest index and yield estimation were determined. The results showed that the sweet potato cultivars gave a significant response to the biochar application on fresh storage root weight, storage root dry weight, biomass dry weight, harvest index and storage root yields, but no interaction between cultivars and biochar doses. Storage root yield ranged from 8 to 21 t/ha without biochar and from 10 to 23 t/ha with 5 t biochar /ha, except for Beta 1 and Boko. The use of 5 t biochar /ha increased storage root yields that ranged from 8 to 45%.

Co-Authors Ach. Nur Wakid Age, Yustina Amir Hamzah Ariani Trisna Murti Astutik Astutik Dewi Ratih Rizki Damayanti Dwi Julianto, Reza Prakoso Fila Isti Kumala Agustina Ghudi, Enos Magho Hidayat, Fariz Nur Hidayati Karamina I Made Indra Agastya Imroatus Sholiqah Jamhari Jamhari Jaya Mahar Maligan Jene, Yohana Keli, Maria Oktaviana Kgs . Ahmadi Kgs Ahmadi Kgs Ahmadi Kgs Ahmadi Kgs Ahmadi Kgs. Ahmadi - Khaerudin, Dian Noorvy Lein, Johanes Lorine Tantalu Lorine Tantalu Malo, Yulita Masni, Teresia Maria Mulidin, Hironimus Niga, Regina Magi Nonok Supartini Nonok Supartini Nopianti, Putri Nurita Thiasari Nurita Thiasari Nurita Thiasari Petrus, Santo Poppy Indri Hastuti Poppy Indri Hastuti Poppy Indri Hastuti Prakoso D.J, Reza Pramono Sasongko Regina Magi Ni Ga Retno Ayu Dewi Novitawati Reza Prakoso Dwi Julianto Reza Prakoso Dwi Julianto Ricky Indri Hapsari Samuel Chaprianggi Agung sapri sapri Sinu, Grasiana Tryfonia Dehot Sri Umi Lestari Sukma Paramita Sumiati, Astri Sumiati, Astri Susilo Ribut Anggarbeni Sutoyo Sutoyo Tri MUJOKO Waginten, Waginten Wahyu Fikrinda Wendo, Consianus Zain Fuadi

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