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Distribution of Edibles Wild Taro (Aroid Plant) on The Different Altitude (Shoutern Slope of Wonogiri and Pacitan) Puji Wicaksono, Karuniawan; Murniyanto, Eko; Nakagoshi, Nobukazu
AGRIVITA, Journal of Agricultural Science Vol 32, No 3 (2010)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

Show Abstract | Download Original | Original Source | Check in Google Scholar

On the dry region of Wonogiri Regency and Pacitan Regency, in the Central Java and East Java Provinces border of Indonesia, there is a potential group of plant which is still disguise from the researchers attention. These wild edible tuberous plant, were actually have potential source of carbohydrate as an alternative to rice or corn inside the forest system or agro-forestry system. Their minimum maintenance, adaptability to drought and shading make them a potential plant as the staple food for the local people residing inside or in the forests buffer zone. Wild taro (Aracaceae family) existence in the forest system or agro-forestry might increase the economic sustainability of forest. Using a Randomized block design method on the 5 plots sample located on the Northern slope of Wonogiri dry-land, the density and distribution type of wild taro and taro-like plants were surveyed. There were six genus of wild tuberous plant with 12 identified species and several endemic species identified. Xantosoma sp has the highest population, and generally the aroid plants have clumped distribution. Current situation of economical importance of other commodity and relationship with human agricultural activities may vary the distribution of Taro.Keywords: Edible wild taro, distribution, altitude

Detecting Potential Biodiversity Hotspots for Development of REDD+ Safeguards Based on Analyses of Land-Cover Complexity in East Java, Indonesia Yasa Palaguna Umar; Satoshi Ito; Yasushi Mitsuda; Ryoko Hirata; Tsuyoshi Kajisa; Hagus Tarno; Karuniawan Puji Wicaksono; Arifin Noor Sugiharto
AGRIVITA, Journal of Agricultural Science Vol 41, No 2 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i2.2010

We examined a new method to detect the biodiversity hotspots in terms of complex patch mosaics at a regional scale in East Java, Indonesia, in order to develop the safeguard against further expansion of monocultures by REDD+. A land-cover map consisting of five major land-cover types (forest, agricultural land, bare land, water, and residential) was generated with a 30 m x 30 m resolution by the unsupervised classification of a Landsat8-OLI image. Shannon’s diversity index (H’) was calculated for each of 10.98 ha (11 x 11 pixels) landscape throughout the study area based on the dominance of the land-cover types by five calculation methods with different combinations of land-cover types. Then, the landscapes of upper 5 % in H’ was selected as the potential hotspots in terms of highly complex patch mosaics. Among the five potential hotspots, the calculation of H’ with four land-cover types (forest, agriculture, water, and bare land) was thought to be most suitable to set conservation targets at a regional scale, because the potential hotspots by this method showed aggregated distribution patterns, and was less sensitive to the small residential patches. While, no clear distribution trend was observed along the environmental gradients.

DEVELOPMENT OF SUSTAINABLE CULTURAL LANDSCAPES IN WEST KALIMANTAN Karuniawan Puji Wicaksono; Nobukazu Nakagoshi
AGRIVITA, Journal of Agricultural Science Vol 34, No 3 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i3.108

This research focuses on investigating West Kalimantan’s traditional landscapes, shifting cultivation pattern, and comparing the forest dependency of several ethnic groups. After conducting remote sensing and geographical information system techniques based on the satellite images LANDSAT-TM in West Kalimantan from 1996 to 2006, the decrease of primary dry tropical forest from 36.4% to 15.9% and a little increase of agriculture land from 44.8% to 45.1% were detected. West Kalimantan’s traditional landscape is a combination of primary forest, shifting dry rice-field, rubber plantation, fruits garden and home garden, meanwhile new landscape managed by migrants mainly consist of permanent wet land rice-field, dry land rice, and crop fields. The decreasing forest area forces the native people to shorten the shifting cultivation cycle or to turn to permanent agriculture with the low yield. This situation is the result in the more primary forest clearing for agriculture usage by native people and migrants. It is clear that the traditional landscape of West Kalimantan is particularly dependent upon its most vital element, the forest. Yet, traditional landscape representing the regeneration cycle of forest in West Kalimantan was constrained by changes in managed and modern landscape. Keywords: Landscape, Forest, Cultural, Land-use, Ethnics group

Distribution of Edibles Wild Taro (Aroid Plant) on The Different Altitude (Shoutern Slope of Wonogiri and Pacitan) Karuniawan Puji Wicaksono; Eko Murniyanto; Nobukazu Nakagoshi
AGRIVITA, Journal of Agricultural Science Vol 32, No 3 (2010)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v32i3.13

On the dry region of Wonogiri Regency and Pacitan Regency, in the Central Java and East Java Province's border of Indonesia, there is a potential group of plant which is still disguise from the researcher's attention. These wild edible tuberous plant, were actually have potential source of carbohydrate as an alternative to rice or corn inside the forest system or agro-forestry system. Their minimum maintenance, adaptability to drought and shading make them a potential plant as the staple food for the local people residing inside or in the forest's buffer zone. Wild taro (Aracaceae family) existence in the forest system or agro-forestry might increase the economic sustainability of forest. Using a Randomized block design method on the 5 plots sample located on the Northern slope of Wonogiri dry-land, the density and distribution type of wild taro and taro-like plants were surveyed. There were six genus of wild tuberous plant with 12 identified species and several endemic species identified. Xantosoma sp has the highest population, and generally the aroid plants have clumped distribution. Current situation of economical importance of other commodity and relationship with human agricultural activities may vary the distribution of Taro.Keywords: Edible wild taro, distribution, altitude

Respon Pertumbuhan dan Hasil Dua Varietas Pakcoy (Brassica rapa L.) terhadap Durasi Pengaliran Nutrisi pada Sistem Hidroponik NFT (Nutrients Film Technique) Bagus Zharfan Zakaria; Karuniawan Puji Wicaksono
PLANTROPICA: Journal of Agricultural Science Vol 8, No 1 (2023)
Publisher : Department of Agronomy, Faculty of Agriculture, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpt.2023.008.1.4

Pakcoy (Brassica rapa L.) adalah tanaman hortikultura yang memiliki nilai ekonomis. Hidroponik merupakan salah satu penerapan urban farming yang merupakan upaya peningkatan kualitas produk pertanian. Namun dalam praktiknya memerlukan memerlukan biaya investasi dan operasional yang tinggi, salah satunya pada sistem NFT(Nutrients Film Technique). Penelitian ini bertujuan untuk mengetahui respon pertumbuhan dan hasil dua varietas pakcoy terhadap perlakuan durasi pengaliran nutrisi sebagai upaya menekan biaya pengeluaran budidaya secara hidroponik NFT. Penelitian dilaksanakan di Desa Jalmak, Kecamatan Pamekasan, Kabupaten Pamekasan, Jawa Timur pada bulan Januari-April 2021. Lokasi penelitian berada pada ketinggian ±20 m dpl dengan suhu rata-rata yaitu 30˚C. Penelitian ini menggunakan rancangan petak terbagi. Faktor pertama sebagai petak utama adalah durasi pengaliran nutrisi yang terdiri dari empat taraf, diantaranya durasi 24 jam(P1), 15 jam(P2), 13 jam(P3), dan 11 jam(P4). Faktor kedua sebagai anak petak adalah varietas yang terdiri dari dua taraf, yaitu varietas Green(V1) dan Nauli F1(V2). Analisis data menggunakan analisis ragam dengan taraf 5% yang dilanjutkan dengan uji BNT dengan taraf 5%. Analisis kelayakan usahatani menggunakan B/C ratio. Hasil penelitian menunjukkan bahwa dari segi kelayakan usahatani pada perlakuan durasi pengaliran nutrisi 15 jam dengan varietas Nauli F1 menghasilkan nilai B/C ratio terbaik yaitu sebesar 1,75. Sehingga, durasi pengaliran nutrisi 15 jam dengan varietas Nauli F1 dapat digunakan dalam kegiatan budidaya tanpa harus mensirkulasikan nutrisi selama 24 jam.

IMPROVING NITROGEN FERTILIZER ABSORPTION AND ITS EFFECT ON QUALITY AND SEED YIELD OF CORN (Zea mays) Kuswanto Kuswanto; Karuniawan Puji Wicaksono; Sudakir Sudakir; Edson Begliomini
AGRIVITA Journal of Agricultural Science Vol 35, No 2 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i2.320

Improving nitrogen uptake by pyraclostrobin application in maize under green house and field conditions were investigated. There were three series experiments conducted in dry season, 2011 and 2012. The research conducted using nested design and three replications. Nested design applied to get information as careful as possible about the role of treatment, especially the main factor. The first and second experiments hold at field and green house and the third experiment hold at green house. They had two factors, pyraclostrobin application and nitrogen fertilizer. Vegetative growth, flowering and earing age, chlorophyll content, yield, amylose and protein content evaluated. Application of pyraclostrobin, significantly increase nitrogen fertilizer efficiency. Amylose content and fresh yield were different on nitrogen and pyraclostrobin application. Application of pyraclostrobin 400 ml/ha significantly increase amylose 10.85-18.5%. Both of amylose and protein content were increased by nitrogen fertilizer application. Vegetative growth and chlorophyll content were affected by nitrogen and pyraclostrobin. Keywords: corn, N efficiency, pyraclostrobin, amylose, yield

Uji Efisiensi Beberapa Jenis Kombinas Pupuk Organik Limbah Daun Mawar pada Pembibitan Tanaman Mawar (Rosa sp.) Hanifatul Diyah Khumairoh; Karuniawan Puji Wicaksono
Produksi Tanaman Vol. 11 No. 5 (2023): Mei
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.protan.2023.011.05.07

Mawar merupakan salah satu jenis tanaman hias yang banyak diminati karena keindahan bunga serta nilai ekonomis yang tinggi. Namun meskipun banyak diminati terdapat masalah berupa penurunan produksi tanaman serta penumpukan limbah daun mawar. Sehingga dengan keadaan tersebut perlu upaya untuk meningkatkan produksi tanaman mawar dan mengurangi limbah daun mawar. Upaya yang dapat dilakukan berupa pembuatan dan aplikasi pupuk organik limbah mawar yang dikombinasikan dengan pupuk NPK. Bahan yang dibutuhkan pada penelitian terdiri dari EM4, molase, air, karung, limbah daun mawar, bibit stek batang tanaman mawar soft avalan, pupuk POC limbah daun mawar, pupuk kompos limbah daun mawar, pupuk NPK mutiara, amplop. Penelitian dilaksanakan dengan Rancangan Acak Kelompok yang terdiri dari 9 perlakuan yang diulang sebanyak 3 kali berupa kombinasi antara pupuk organik limbah daun mawar dengan pupuk anorganik yang terdiri dari 100 % NPK, 100 % Kompos, 100 % POC, 100 % NPK + 100 % kompos, 75 % NPK + 100 % kompos, 50 % NPK + 100 % kompos, 100 % NPK + 100 % POC, 75 % NPK + 100 % POC, 50% NPK + 100% POC. Penelitian dilaksanakan pada bulan Desember 2021- Juni 2022 dan berlokasi di Dusun Ngebruk-Desa Gunungsari, Kecamatan Bumiaji, Kota Batu. Hasil penelitian menunjukan bahwa aplikasi kombinasi pupuk organik dan pupuk anorganik menunjukan hasil yang sama. Sehingga pupuk organik limbah daun mawar dapat dijadikan subtitusi pada pembibitan tanaman mawar

Pengaruh Konsentrasi dan Interval Waktu Pemberian Pupuk Organik Cair terhadap Pertumbuhan dan Hasil Terung Ungu (Solanum melongena L.) Purba, Tri Vani Debora; Puji Wicaksono, Karuniawan
Produksi Tanaman Vol. 10 No. 11 (2022): Terbitan Bulan November
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.protan.2022.010.11.03

Tanaman terung (Solanum melongena L.) merupakan tanaman hortikultura semusim yang termasuk kedalam famili Solanaceae dan merupakan tanaman sayuran penting ke empat di dunia. Produksi terung tahun 2017-2020 mengalami fluktuasi disebabkan oleh pemanfaatan lahan budidaya yang masih bersifat sampingan juga pemberian pupuk anorganik tanpa diimbangi pemberian pupuk organik. Pemberian pupuk organik cair (POC) dengan konsentrasi dan interval waktu yang tepat dapat menjadi solusi untuk menyediakan unsur hara bagi tanaman. Penelitian ini bertujuan untuk mengetahui konsentrasi dan interval waktu pemberian POC yang terbaik untuk meningkatkan pertumbuhan dan hasil terung ungu. Penelitian dilakukan di lahan percobaan Fakultas Pertanian Universitas Brawijaya, Jalan Kuping Gajah, Kota Malang pada bulan Maret hingga Juni 2022 dengan ketinggian ±557 mdpl dan rerata suhu 22ºC–25ºC. Penelitian menggunakan Rancangan Acak Kelompok non faktorial dengan 10 kombinasi perlakuan dan 3 kali pengulangan, yaitu: K0: tanpa POC (kontrol), K5;1: 5 ml.l-1 air + interval 1 minggu sekali, K5;2: 5 ml.l-1 air + interval 2 minggu sekali, K5;3: 5 ml.l-1 air + interval 3 minggu sekali, K10;1: 10 ml.l-1 air + interval 1 minggu sekali, K10;2: 10 ml.l-1 air + interval 2 minggu sekali, K10;3: 10 ml.l-1 air + interval 3 minggu sekali, K15;1: 15 ml.l-1 air + interval 1 minggu sekali, K15;2: 15 ml.l-1 air + interval 2 minggu sekali, K15;3: 15 ml.l-1 air + interval 3 minggu sekali. Hasil penelitian menunjukkan bahwa Pemberian POC dengan konsentrasi 15 ml.l-1 air dan interval pemberian 2 minggu sekali merupakan kombinasi terbaik untuk meningkatkan pertumbuhan dan hasil terung ungu.

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