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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Journal of Tropical Soils Buletin Iptek Tanaman Pangan Buletin Palawija AGRIVITA, Journal of Agricultural Science Jurnal Ilmiah Administrasi Publik (JI@P)
Andy Wijanarko
Balai Penelitian Tanaman Aneka Kacang dan Umbi Jl. Raya Kendalpayak KM. 8 Malang, Jawa Timur
Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Environmental Science Social Sciences

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Penentuan Kebutuhan Pupuk P Untuk Tanaman Kedelai, Kacang Tanah Dan Kacang Hijau Berdasarkan Uji Tanah Di Lahan Kering Masam Ultisol Wijanarko, Andy; Taufiq, abdullah
Buletin Palawija No 15 (2008)
Publisher : Balai Penelitian Tanaman Kacang-kacangan dan Umbi-umbian

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Abstract

Ketersediaan P pada tanah masam umumnya rendah sehingga diperlukan pemupukan P. Pemupukan P yang didasarkan pada status kandungan P dalam tanah dapat meningkatkan efektivitas dan efisiensi pemupukan. Kebutuhan pupuk dapat diketahui melalui kalibrasi uji tanah. Kalibrasi uji tanah merupakan percobaan tentang tanggap tanaman terhadap pemupukan pada status hara tanah tertentu. Tingkat ketersediaan hara dalam tanah dinyatakan dalam tingkat rendah, sedang, dan tinggi, atau dalam suatu kisaran kandungan hara tertentu. Uji kalibrasi juga dapat dilakukan pada lokasi dengan status hara tanah bervariasi dari rendah sampai tinggi. Kandungan hara P dalam tanah dengan Bray I di lahan kering masam Ultisol termasuk pada kategori rendah untuk tanaman kedelai, kacang tanah, dan kacang hijau masing-masing adalah <5 ppm P2O5, <9 ppm P2O5, dan <7 ppm P2O5. Metode Bray I dan Bray II adalah metode yang baik untuk menduga tingkat ketersediaan P untuk kedelai, kacang tanah, dan kacang hijau pada tanah Ultisol.
Keunggulan Penggunaan Fosfat Alam pada Pertanaman Kedelai di Lahan Kering Masam Wijanarko, Andy
Buletin Iptek Tanaman Pangan Vol 10, No 2 (2015): Desember 2015
Publisher : Puslitbang Tanaman Pangan

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Abstract

Phosphorus is an essential nutrient required in large quantities by plants after Nitrogen. Rock phosphate is an alternative to improve the P availability in the soil, especially in acid soils. The use of rock phosphate in agriculture, should primarily be initiated by improving its reactivity due to its low reactivity. Characteristics of rock phosphate, chemical and physical properties of soil, and type of crops grown are greatly affecting the direct application rock phosphate in agriculture. The natural phosphate may be improved by the application of organic matter, use of strong acid or sulfur, application of phosphate solvent microorganisms, and increase use of high solubility fertilizer such as SP-36.
Effect of Rock Phosphate Enriched With Sp36 to Soybean Yield on Ultisol Lampung Wijanarko, Andy; Taufiq, Abdullah
AGRIVITA Journal of Agricultural Science Vol 33, No 1 (2011)
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.v33i1.32

Abstract

Research to study the effect of application of rock phosphate (RP) enriched with SP36 to soybean on Ultisol was conducted at ILETRIs' green house from July to October 2008. Treatment consisted of combination of rock phosphate from Lamongan and Bojonegoro at rates of 162 kg P2O5/ha with three rates of SP36 (0, 9, 18 and 27 kg P2O5/ha). The treatments were arranged in randomized complete block design and replicated three times. The result showed that application of RP from Lamongan and Bojonegoro to Ultisol Lampung at rates of 162 kg P2O5/ha increased soil pH by 0.3 and 0.5, available P (Bray 1) by 400% and 823% respectively compared to check.Highest soybean yield was attained by application of RP from Lamongan combined with SP36 at rates of 18 kg P2O5/ha or RP from Bojonegoro combined with SP36 at rates of 9 kg P2O5/ha which yielded 4.98 and 5.21 g/pot respectively. This result indicated that RP from Lamongan and Bojonegoro can be applied directly as P fertilizer for soybean in acid soil, and combining them with SP36 will increase their effectiveness.Keywords: rock phosphate, SP36, soybean, ultisol
ANALISIS KINERJA PEGAWAI DI SEKRETARIAT DPRD PROVINSI JAWA TENGAH Wijanarko, Andy
JI@P Vol 9, No 1 (2020): JI@P
Publisher : Master of Public Administration, Universitas Slamet Riyadi

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Abstract

Kinerja pemerintah daerah dapat dilihat dari kinerja pegawai atau aparatur pemerintahannya, peneliti memfokuskan penelitian ini di Sekretariat DPRD Provinsi Jawa Tengah, dimana pegawai sekretariat memiliki tugas pokok dan fungsi yaitu melayani tugas dan fungsi anggota DPRD Provinsi Jawa Tengah. Dalam menilai kinerja pekerjaan seseorang penilaian kinerja sangat penting bagi setiap pegawai untuk mengukur bagaimana prestasi kerja pegawai tersebut dan mengukur sejauh mana tugas pokok dan fungsi Sekretariat DRPD Provinsi Jawa Tengah dapat terlaksana. Tujuan penelitian ini adalah untuk menganalisis bagaimana kinerja pegawai di Sekretariat DPRD Provinsi Jawa Tengah. Peneliti menggunakan metode deskriptif kualitatif dengan menekankan pada konsep pengukuran kinerja. faktor-faktor yang meliputi indikator kinerja yaitu : Prestasi Kerja, Keahlian, Perilaku, Kepemimpinan. Adapun teknik yang digunakan peneliti dalam mengumpulkan data adalah wawancara, observasi dan studi dokumentasi. Kesimpulan dari hasil penelitian ini menunjukan bahwa kinerja pegawai di Sekretariat DPRD Provinsi Jawa Tengah sudah dikatakan baik. Hal tersebut dikarenakan capaian kinerja pegawai sudah mencapai target sasaran capaian kinerja, Namun kedisiplinan pegawai masih perlu ditingkatkan
Land Suitability for Developing Soybean Crops in Bumi Nabung and Rumbia Districts, Central Lampung Sudaryono, .; Prihastuti, .; Wijanarko, Andy
JOURNAL OF TROPICAL SOILS Vol. 16 No. 1: January 2011
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2011.v16i1.85-92

Abstract

Bumi Nabung district consists of 6 villages with a total area of 7,810 ha which are divided into 251 ha of rain fed rice lands, 4,908 ha of dry land, 1,317 ha of lowland, 1,158 ha of yards and 176 ha of others. Rumbia district consists of 14 villages which has a total area of 22,696 ha of land consisting of 2,728 ha of yards, 17,358 ha of dry land, 326 rainfed paddy field, 839 ha of swamp land, 1,470 ha of lowland and 4,232 ha of others. Bumi Nabung and Rumbia districts have a low soil fertility potential that is reflected by the lowof soil pH, CEC, total N, available P, and high level of exchangeable Al and Al saturation. The results assessment based on the physical and chemical characteristics showed that Bumi Nabung district have 5 villages on suitable class S-2 (North Bumi Nabung, East Bumi Nabung, Bumi Nabung Ilir, South Bumi Nabung, and Sri Kencono) and one village New Bumi Nabung has less suitable class S-3. In the Rumbia District, there were 14 villages belonged to suitable class (S-2), namely Reno Basuki, Rekso Binangun, Teluk Dalam Ilir, Rukti Basuki, Restu Baru, Restu Buana, Bina Karya Buana, Bina Karya Putra, Bina Karya Jaya, Bina Karya Utama, Bina Karya Sakti, Joharan, Rantau Jaya Ilir and Rantau Jaya Baru. Bumi Nabung and Rumbia districts have the potential fertility and land suitability for extensification and development of soybean crops. The main technology components to support this program are the use of ameliorant (dolomite and zeolite), the application of organic fertilizers (manure and compost) and inorganic fertilizers (NPK).Keywords: Acid soil, central Lampung, land suitability, soil fertility, soybeans
Variability of Soybean [glycine max (L) Merr] Growth in Relation to Chemical Properties of Ultisol from East Lampung Taufiq, Abdullah; Wijanarko, Andy
JOURNAL OF TROPICAL SOILS Vol. 17 No. 1: Januari 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i1.37-43

Abstract

Acidic dry land in Lampung is potential for soybean development area. Low soybean yield in farmer level is one of factor causing its’ low competitiveness. Soil fertility is the main constrain related to low yield of soybean. Objective of the research was to diagnose a cause of poor soybean growth on dry land Ultisol at Sukadana sub District, East Lampung District. Soil and soybean plant samples were collected from farmers’ field at Sukadana ilir village during planting season April – July year 2010. Plant and soil samples were taken when soybean at R1 stage (starting to bloom) using stratified random sampling method. The result showed that variability of soybean growth on Ultisol at Sukadana, East Lampung related to variability of soil pH, exchangeable Al, exchangeable K, Ca, and Mg. The poor soybean growth was due to low soil pH, high exchangeable Al, low exchangeable K, Ca, and Mg.
Tanggap Pertumbuhan dan Hasil Tiga Varietas Kacang Hijau terhadap Lama Genangan Lestari, Sri Ayu Dwi; Wijanarko, Andy; Kuntyastuti, dan Henny
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 47 No. 1 (2019): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.694 KB) | DOI: 10.24831/jai.v47i1.18047

Abstract

The objective of this research was to determine growth and yield responses of three mungbean varieties to waterlogging duration. The experiment was conducted at a screenhouse of ILETRI, Malang, East Java, from October to December 2016 using Alfisol soil from Probolinggo, East Java. The experiment consisted of two factors that were laid out in a factorial randomized complete block design with three replications. The first factor was mungbean varieties, namely Sriti, Vima 1, and Vima 2. The second factor was waterlogging durations, namely 0, 2, 4, and 6 days. The waterlogging treatments started at 20 days after planting. Mungbean plants fertilized with 250 kg Phonska ha-1 at the time of planting. The results showed that waterlogging treatments had negative effects on growth of the three varieties, indicated by a reduction in stem dry weight and leaf dry weight of the plants. Sriti variety was tolerant to waterlogging, Vima 1 was moderate tolerant, and Vima 2 was sensitive.Keywords: Alfisol soil, Vigna radiata, waterlogging stress
Co-Authors . PRIHASTUTI abdullah Taufiq Kuntyastuti, dan Henny Lestari, Sri Ayu Dwi Sudaryono, .