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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Agromet Forum Pasca Sarjana Indonesian Journal of Geography Jurnal Kependidikan: Penelitian Inovasi Pembelajaran Jurnal Agrista AGRIVITA, Journal of Agricultural Science Journal of Mathematical and Fundamental Sciences Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Aplikasi Bisnis dan Manajemen (JABM) E-Journal EnviroScienteae JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Journal of Tropical Crop Science International Journal of Remote Sensing and Earth Sciences (IJReSES) Jurnal Entomologi Indonesia JURNAL METEOROLOGI DAN GEOFISIKA JURNAL PANGAN Jurnal Ilmiah Inovasi Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura International Journal of Disaster Management Jurnal Meteorologi dan Geofisika The International Journal of Remote Sensing and Earth Sciences (IJReSES)

Yonny Koesmaryono

Agrometeorology Division, Department Of Geophysics And Meteorology, Faculty Of Mathematics And Natural Sciences, IPB University, Campus IPB Dramaga, Indonesia

Author-ID : 2445581

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Mathematics Physics Social Sciences Other

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The Use of Reflective Mulch in Soybean-Oil Palm Intercropping System Mufika Haryu Suci Fitriana; Yonny Koesmaryono; . Impron; Taufan Hidayat
Agromet Vol. 33 No. 2 (2019): DECEMBER 2019
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Demand for soybean is increasing nowadays as it provides a high nutrition food at affordable price. To fulfill the demand, an intercropping system of soybean-oil palm may increase the production of soybean. However, shading by the oil palm canopy would reduce the amount of radiation reaching the soil surface. Theoritically, application of reflective mulches may increase the amount of solar radiation intercepted by the shaded plants, hence it gives a positive effect for plant growth. The study aimed to analyze the effect of an increased radiation transmission with reflective mulch on the growth and development of soybean under an intercropping system with 4-year olds oil palm. The experiments were carried out on PT. Perkebunan Nusantara VIII located in Cimarga District, Lebak Regency, from March to June 2018. There were three treatments based on mulch application, namely soil without mulch (R0), soil with black silver plastic mulch (R1), and soil with dry palm oil leaf mulch (R2). The results showed that a canopy of 4-year-olds oil palm transmitted around 42% of an incoming radiation. The use of mulch as radiation reflector has a positive effect on an increased interception of solar radiation and potential productivity. Under R1 and R2 treatments, intercepted radiation was 25% and 15% larger than that of R0. In addition, mulch increased radiation use efficiency (RUE) by 2.3 times under R1 (1.6 g/MJ) and 1.7 times under R2 (1.2 g/MJ). The potency of productivity also increased (1.48 and 1.42 times higher under R1 and R2, respectively). The finding confirmed that mulch application did not affect the plant development in any treatment. Furthermore, we suggest that an intercropping system of soybean and 4-year-olds oil palm may be applied to increase the soybean production in Indonesia.

Climate Comfort in Nature-Based Tourism at Tropical Region Nofi Yendri Sudiar; Yonny Koesmaryono; . Perdinan; Hadi Susilo Arifin
Agromet Vol. 33 No. 2 (2019): DECEMBER 2019
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

This research reveals visitor perceptions of climate comfort in nature-based tourism areas in Indonesia. We combined a survey and modeling to calculate the comfort score based on Tourism Climate Index (TCI) and Holiday Climate Index (HCI) in three tourism sites of Ecopark Ancol, Bogor Botanical Garden, and Cibodas Botanical Garden. During the survey, we collected data on climate comfort perceptions and the role of the weather on the comfort. Totally, 793 respondents of tourism visitors participated in the study. Our results showed that almost all of visitors (>95%) stated that the weather affected the climate comfort. Interestingly, the weather condition did not influence on the decisions where the tourism site to visit. The level of perceived climate comfort for the sites were neutral (Ecopark, 57.3%), and comfortable (Bogor Botanical Garden, 60%; Cibodas Botanical Garden, 78.4%). Then by modeling we obtained the best method to calculate the comfort based on the following index: (i) TCI with Physiological Equivalent Temperature (PET) Tianjin for Ecopark (57.2), (ii) HCI for Bogor Botanical Garden (59), and (iii) HCI with PET Tianjin for Cibodas Botanical Garden (77.6). Further, perception on climate comfort was significantly difference among sex, age, and education level of the visitors. In warmer environmental condition, the older people and women feel more comfortable. Our finding revealed that topography was weak correlated with comfort perception. By understanding visitor perceptions, strategies and appropriate actions can be developed to increase comfort in the nature-based tourism industry.

Analysis of Crop Water Requirement for Maize with Planting Hole System under Dry Climate Condition Haruna; Yonny Koesmaryono; Tania June; Budi Kartiwa
Agromet Vol. 36 No. 1 (2022): JUNE 2022
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j.agromet.36.1.31-41

Crop water requirement is an important factor to increase water use efficiency and avoid crop failure in dryland. A way to increase water use efficiency is by determining an irrigation interval scenario and utilizing a planting hole system. Research on the analysis of water requirement in the planting hole system with an irrigation interval for maize is still limited. Therefore, this study aims to analyze the level of water requirement for maize in dryland. This research was conducted in Camplong Village, Kupang District, East Nusa Tenggara (NTT) from January-May 2020. The design used was a split-plot of various treatments. There were three different techniques of applying fertilizer as the main plot, and two treatments of pruning maize leaves as sub-plots. The different treatments of fertilizer application includes: 1) mixing manure with rice husk charcoal (Ls+As), 2) separating manure from rice husk charcoal (Ls/As), 3) no addition of manure or rice husk charcoal into the planting hole (control). The sub-plots were divided into 2 treatments namely with leaf pruning (P) and without leaf pruning (TP). The water requirement was analyzed based on the FAO 56 approach with the production calculation in weight unit of tiles (ubinan). The results showed that 75% water efficiency was achieved or there was a water saving of 3,119 m3/ha/planting season when compared to conventional techniques. The highest maize productivity (7 tons/ha) was attained in treatment of mixing manure with rice husk charcoal with leaf pruning. The result indicated that this water savings may be used to expand the planting area to 3 ha.

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The research analyzed rainfall data from Subang and Karawang as the centers of rice production in West Java. The objectives of this research were to (1) develop monthly rainfall prediction model for predicting the next four months rainfall, (2) develop a next three months rice yield prediction model and (3) estimate the availability of rice in Subang and Karawang as a function of monthly rainfall. Both rainfall and rice yield prediction models were built by ANN technique. ANN rainfall prediction model was applied at six rainfall stations in Subang and Karawang which are Cigadung, Karawang, Rawamerta, Subang, Sindanglaya and Ciseuti. It was developed by including 7-8 variables (X) at input layer and 6-10 nodes at a single hidden layer. Variables at input layer are month code (t) as X1, monthly rainfall values at t, t+1, t+2, and t+3 as X2, X3, X4, and X5 respectively, SOI at t as X6 and SST anomalies at t and t+3 as X7 and X8. Rice yield model was built to estimate the rice production at t+3 by using four variables at input layer which are t, t+1, t +2 and t+3 as X1, X2, X3 and X4 and also included 6-8 nodes at hidden layer. The results of this research found that the ANN model could accurately predict the monthly rainfall in all stations with the R2 values ranged from 64-96%, and maximum errors of each month rainfall ranged from 0.4-3.4 mm/month. Rainfall model predicted that there were trends of Above Normal (AN) rainfall at Karawang and Rawamerta stations in dry season, while at four stations in Subang region would experience Below Normal (BN) rainfall in dry season. Based on 2009 rainfall prediction, the rice yield model predicted highest rice production to happen during February and March 2009 at values of 299.294 ton and 329.082 ton. Key words: artificial neural network, rainfall prediction, rice production

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The paper describes about rainfall zoning and rainfall prediction modeling and its use for rice availability and vulnerability analysis. The study used rainfall data from Station Baros (Banten region), Station Karawang and Station Kasomalang Subang (Northern Coastal of West-Java), and Station Tarogong (Garut). Fuzzy clustering methods, that was applied for rainfall zoning, used the representative data for El-Nino, La-Nina and normal means condition during 1980-2006 periods. Neural network analysis technique was applied for rainfall prediction modeling. Training set of the model based on the rainfall data of 1990-2002 periods, and validation model based on data of 2003-2006 periods. The model were used to predict the rainfall of 2007-2008 periods. The distibution of equivalence value between rainfall stations was very variative under El-Nino, La-Nina and Normal condition. On the certain of equivalence level it could be derivated some different rainfall zone under El-Nino, La-Nina and normal condition. Model training set could explain 88% of Baros rainfall variability, 89% of Karawang rainfall variability, and 72% of Kasomalang rainfall variability. At Baros, Karawang and Subang, rainfall was predicted to be increased on November 2007-February 2008 period, and to be decreased on the March-June 2008, and to be increased on July-November 2008. The rainfall decreasing on the March-June would carry a losses of rice production up to 25%. But, applying the well irrigation management and suitable growing periods could decrease and mitigate the decreasing of paddy production. Key words: rainfall prediction model, fuzzy clustering, neural network analysis, rice vulnerability

Analisis Tingkat Kekeringan untuk Mengurangi Resiko Gagal Panen Tanaman Pangan di Provinsi Banten Taufan Hidayat; Yonny Koesmaryono; Aris Pramudia
Jurnal Agrista Vol 14, No 3 (2010): Volume 14 Nomor 3 Desember 2010
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (910.934 KB)

Analysis of Drought Level to Reduce Risk of Food Crop Harvest Fails in Banten ProvinceABSTRACT. Climate is one of the most important factor to the success of the agriculture production. Climate variability such as season change, lack or excess of water, are sample examples of climate factors which limit agriculture production. Planning agriculture activities which involving climate factors as one of the consideration will reduce crops production failure. This research conducted to identified the potency of drought at Banten Province by consecutive dry days analysis at 5, 10, and 15 continuous days or more. The result showed that the potency of drought at northern Banten is higher compared to middle and southern Banten. This was showed by the high opportunities of DHK = 5, 10, and 15 continuous days or more, as big as 0,65, 0,46, and 0,28. The lowest potency of drought occur at southern Banten with opportunities of DHK≥ 5, 10, and 15 continuous days or more, each as big as 0,43, 0,30, and 0,18.

Efisiensi Pemanfaatan Radiasi Surya, Pertumbuhan dan Produksi Tanaman Soba (Fagopyrum esculentum Moench.) di Ciawi Bogor Taufan Hidayat; Yonny Koesmaryono
Jurnal Agrista Vol 14, No 1 (2010): Volume 14 Nomor 1 April 2010
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.384 KB)

Solar Radiation Use Efficiency, Growth and Soba (Fagopyrum esculentum Moench.) Production in Ciawi BogorABSTRACT. Soba (Fagopyrum esculentum Moench) is potential alternative food source because of its chemical contents which are not so different from other main food sources. In its agronomical development, intensive and sustain research are needed to study solar radiation uses efficiencies, growth and yield of soba under different population an time planting. This research conducted from April to August 2000 at BPLP Ciawi – Bogor experiment station 415 meter top of sea level, 106 51 BT and 06 38 LS. Unit of research arranged by factorial completely randomized block design. The population factor consist of 3 level : 200 plants m-2 (P1), 160 plants m-2 (P2) and 133 plants m-2 (P3), and time of planting also consist of 3 levels : on April (T1), May (T2) and June (T3). Solar radiation uses efficiency at early growth to weeks after planting was higher at high population compared to low population, but after 5 weeks of planting or when maximum efficiencies, its higher on P2 compared P3 and P1. This showed that when grain filling and maturing, it is more intensive on low population then high population, however the anova for two factors at maximum efficiencies did not showed significant differences. Growth and yield of soba is better on high population compare to low population. This because on high population the microclimate condition and water availability is more adequate then on low population. There was no significant different on 1000 grain weight caused by two factors. For total yield P1 172,1 gm-2 was highest and significantly different then P2 143,6 gm-2 and P3 123,9 g m-2. Production cause by time of planting did not showed significant different between T1 and T2 but it did on T3.

OPTIMALISASI PELAKSANAAN KURIKULUM SISTEM MAYOR-MINOR PROGRAM PENDIDIKAN SARJANA INSTITUT PERTANIAN BOGOR Sutoro Sutoro; Yonny Koesmaryono; Hari Wijayanto
Jurnal Aplikasi Bisnis dan Manajemen (JABM) Vol. 2 No. 3 (2016): JABM Vol. 2 No. 3, September 2016
Publisher : School of Business, Bogor Agricultural University (SB-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17358/jabm.2.3.270

This study aims to 1) evaluate the implementation of major-minor curriculum system in IPB Undergraduate Program, 2) identify factors leading to less optimized implementation of the major-minor curriculum system in IPB Undergraduate Program and 3) design strategies to optimize the implementation of the major-minor curriculum system in IPB Undergraduate Program. Analytical Hierarchy Process was utilized as the method of study. The results showed that the implementation of the major-minor curriculum system in IPB Undergraduate Program is still considered to be less optimal. Factors influencing the implementation of the major-minor curriculum system in IPB Undergraduate Program, according to its priority, include: 1) the availability of competent and committed teaching staffs, 2) the availability of adequate lecturing facilities and infrastructure, 3) the availability of lecture schedule to accommodate students who choose minor curriculum, and 4) the availability of reliable and IT-based Academic Information System (SIMAK). Strategies to optimize the implementation of major-minor curriculum system in IPB Undergraduate Program, according to its priority, include; 1) improving the competence and commitment of teaching and educational staffs, 2) increasing the commitment of departments and faculties to facilitate the fulfillment of minor curriculum schedules, 3) providing adequate facilities and infrastructure to implement the major and minor curriculum system, and 4) providing lecture schedules that can accommodate the needs of students who choose minor curriculum.Keywords: analytical hierarchy process, optimization, major-minor curriculum systemABSTRAKPenelitian ini bertujuan 1) mengevaluasi pelaksanaan kurikulum sistem mayor-minor pada Program Pendidikan Sarjana IPB, 2) mengidentifikasi faktor-faktor yang menyebabkan kurang optimalnya pelaksanaan kurikulum sistem mayor-minor pada Program Pendidikan Sarjana IPB dan 3) merancang strategi untuk mengoptimalkan pelaksanaan kurikulum sistem mayor-minor Program Pendidikan Sarjana IPB. Metode penelitian yang digunakan Analytical Hierarchy Prosess. Hasil penelitian menunjukkan bahwa pelaksanaan kurikulum sistem mayor-minor Program Pendidikan Sarjana IPB selama ini masih belum optimal. Faktor-faktor yang berpengaruh terhadap pelaksanaan kurikulum sistem mayor-minor pada Program Pendidikan Sarjana di IPB, berdasarkan urutan prioritas adalah;1) ketersediaan staf pengajar yang kompeten dan berkomitmen tinggi,2) ketersediaan sarana dan prasarana ruang perkuliahan yang memadai,3) tersedianya jadwal perkuliahan yang dapat mengakomodir keinginan mahasiswa yang memilih minor dan 4) ketersediaan Sistem Informasi Akademik (SIMAK) yang handal dan berbasis IT. Strategi optimalisasi pelaksanaan kurikulum sistem mayor-minor pada Program Pendidikan Sarjana IPB, berdasarkan urutan prioritas adalah; 1) meningkatkan kompetensi dan komitmen staf pendidik dan staf kependidikan,2) meningkatkan komitmen departemen dan fakultas untuk memfasilitasi agar dapat memenuhi jadwal minor,3) menyediakan sarana dan prasarana yang memadai untuk pelaksanaan kurikulum sistem mayor minor dan 4) menyediakan jadwal perkuliahan yang bisa mengakomodir keinginan mahasiswa yang memilih minor.Kata kunci: analytical hierarchy prosess, optimalisasi, kurikulum sistem mayor-minor

KAJIAN SISTEM PEMBELAJARAN SEBAGAI UPAYA PENINGKATAN SISTEM PENJAMINAN MUTU Wahyujaya Wahyujaya; Yonny Koesmaryono; Ferdinan Yulianda
Jurnal Kependidikan Vol. 45, No.1 (2015)
Publisher : Universitas Negeri Yogyakarta

Penelitian ini bertujuan untuk menemukan permasalahan dan merumuskan strategi meningkatkanmutu proses pembelajaran dengan mendeskripsikan sistem pembelajaran yang sudah dilaksanakan danjuga menganalisis aspek internal dan eksternal. Jenis penelitian ini adalah deskriptif kualitatif. Datadikumpulkan melalui observasi, wawancara, dokumentasi dan triangulasi (gabungan). Data dianalisisdengan tiga tahapan, yaitu analisis deskriptif kulitatif, analisis faktor strategis internal dan eksternal(IFAS-EFAS) dan perumusan strategi dengan matriks SWOT. Hasil penelitian menunjukkan adanyapermasalahan pada manajemen sumber daya manusia, sarana prasarana, keuangan dan efektiﬁ tassistem unit penjaminan mutu. Faktor strategik eksternal mempunyai potensi lebih besar dari faktorstrategik internal. Berdasarkan analisis matrik SWOT, strategi yang dirumuskan adalah melakukanpeningkatan pengetahuan dan kesadaran pimpinan struktural fakultas tentang manajemen efektifdan sistem penjaminan mutu internal serta sosialisasi kepada dosen maupun pegawai. Selanjutnyamemanfaatkan peluang eksternal secara maksimal dalam meningkatkan tata kelola pendidikan tinggiuntuk menunjang kemajuan sistem pembelajaran

Co-Authors . Haruna . RINDITA A. Yanto Abdul Syakur Adeleyda M. W Lumingkewasa Adi Mulsandi Agus Suryanto Ahmad Faqih Aji Hamim Wigena Aji Irsyam N. Sukarta Akhmad Faqih Akhmad Faqih Alexander Knohl Ali, Ashehad Aswen Amsari Mudzakir Setiawan Amsari Mudzakir Setiawan Anung Wahyudi Aprilia, Lupita Ardhasena Sopaheluwakan Ardhasena Sopaheluwakan Aris Pramudia Aris Pramudia Ashehad Ashween Ali Asmari Amasih Aziz, Sandra A B.F. Simatupang Bambang Dwi Dasanto Bambang Guritno Budi Kartiwa Budi Kartiwa Christian Stiegler Daijiro Ito Didiek H. Goenadi Didiek Hadjar Goenadi Didiek Hadjar Goenadi Didy Sopandie Dodo Gunawan Dodo Gunawan Donaldi Sukma Permana Dulbari, Dulbari Dwi Guntoro E. Aldrian E. Eliyani Edi Santosa Edvin Aldrian Eko Sulistyono Eleonora Runtunuwu Eleonora Runtunuwu Erwin Eka Syahputra Makmur F Ismaini F. Djufri F. Fibrianty Fadjry Djufri Fadjry Djufri Felia Rizky Aulia Fendy Arifianto Ferdinan Yulianda Gusti Rusmayadi H.M.H Bintoro Djoefrie Hadi Susilo Arifin Hana F.T. Handoko Handoko Hanedi Darmasetiawan Hanedi Darmasetiawan Hari Wijayanto Haruna Haruo Suzuki Herdhata Agusta Hidayat Pawitan Hidayat Pawitan Hideki Sukimoto I Handoko I Handoko I Wayan Astika Impron Impron Irianto G. Irsal Las Irsal Las Justika Baharsjah Kiki, Kiki Knohl, Alexander Laode Sabaruddin Lisdar Idwan Sudirman Lukman H. Sibuea Lumingkewasa, Adeleyda M. W Ma'rufah, Ummu Magfira Syarifuddin Mamenun Mamenun Marjuki Marjuki Mufika Haryu Suci Fitriana Mulyono R. Prabowo Mulyono R. Prabowo Munif Ghulamahdi Nofi Yendri Sudiar P. Perdinan Rahmat Hidayat Resti Salmayenti Rini Hidayati Rizaldi Boer Rokhmin Dahuri S. B. Rushayati Sandra A Aziz Santikayasa, I Putu Setiapermas M.N. Siti Nadia Nurul Azizah Sjafrida Manuwoto Sofyan Zaman Sofyan, Devied Apriyanto Sopaheluwakan, Ardhasena Sulistyono, dan Eko Suman Sangadji Sutoro Sutoro Swastiko Priyambodo, Swastiko Syahrizal Koem Syarifuddin Karama Tania June Taufan Hidayat Taufan Hidayat Tetsuya Haseba Tetsuya Haseba Tugiyo Aminoto Ummu Ma'rufah Ummu Ma'rufah Upik Kesumawati Hadi Wahyujaya Wahyujaya Wido Hanggoro Yogi Sugito Yon Sugiarto Yopie Moelyohadi Yunus Subagyo Swarinoto Yusmin . Yusmin . Yustika S. Baharsyah Z. Noor

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