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A Review of Root Pruning to Regulate Citrus Growth Budiarto, Rahmat; Poerwanto, Roedhy; Santosa, Edi; Efendi, Darda
Journal of Tropical Crop Science Vol 6 No 01 (2019): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (462.852 KB) | DOI: 10.29244/jtcs.6.01.1-7

Abstract

Root is the important plant organ hiding below the soil that serves as plant supporting structure, water and nutrient supplier and assimilates storage. Root growth occurs in turn with shoot part, forming repeated cyclic pattern because of the photosynthate competition. Root growth regulation is one of the promising practices to boost the yield of fruit tree, especially citrus that is economically important and highly demanded fruit. Root pruning varied based on the scale of intensity and plant growth stage, including air root pruning, knife root pruning and modern pruning using root pruner machine mounted to a tractor. Root pruning to induce the growth of more fi brous root system and to correct root deformation at seedling stage have potentials to improve post-transplant growth. Besides, it has a potential to replace the use of chemical plant growth regulator for a more environmentally friendly practice. The pruning of root impeded the canopy growth, altered the plant water status leading to fl ower promotion. In addition, it is also a promising practice to overcome the alternate bearing on fruit tree, including citrus, through the suppressing of excessive growth and restricting the high fruit load during the ‘on year’ and allowing a better carbohydrate storage for the improvement of yield during the ‘off year’.
Oil Palm Yield Forecasting Based on Weather Variables Using Artificial Neural Network Kartika, Nadia Dwi; Astika, I Wayan; Santosa, Edi
Indonesian Journal of Electrical Engineering and Computer Science Vol 3, No 3: September 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v3.i3.pp626-633

Abstract

Forecasting of oil palm yield has become a main factor in the management of oil palm industries for proper planning and decision making in order to avoid monthly high cost in harvesting. Predicting future value of oil palm yield with minimum error becomes an important issue recently. A lot of factors determine the productivity of oil palm and weather variables play an important role that affect plant growth and development that may reduce yield significantly. This research used secondary data of yield and weather variables available in company administration. It proposed feed forward neural network with back propagation learning algorithm to build a monthly yield forecasting model. The optimization procedure of ANN architecture obtained the best using 60 neurons in input layer, five hidden layers and one neuron in the output layer. Training data were from January 2005 to June 2008 while testing data were from July 2008 to December 2009. ANN architecture using five hidden layers gave the best accuracy with MAE 0.5346 and MSE 0.4707 while the lowest accuracy occurred by using two hidden layers with MAE 1.5843and MSE 4.087.
Soil Biology Contribution on Agricultural Land Suitability Evaluation of Wet Tropical Megabiodiversity Regions GITOSUWONDO, SUBOWO; SANTOSA, EDI; ANAS, ISWANDI
Jurnal Sumberdaya Lahan Vol 4, No 02 (2010): Desember 2010
Publisher : Indonesian Center for Agriculture Land Resource Development

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Abstract

Indonesia is in the region "wet tropical megabiodiversity" it would need to complete the system  for agricultural land suitability evaluation in accordance with real conditions, thus increasing the value-added resources optimally and sustainable and accountable production investment. Soil organisms as a component of production support can act as an agent of energy and nutrient cycling in the soil, improving soil physical properties, and controlling pests and disease. For that soil, biological parameters that need to be considered in evaluating the suitability of land that already exist include: N-fixing or P-solubilizing bacteria groups that live symbiosis and free-living, the fungi solubilizing P and soil organic matter decomposition groups, BGA fixing and free-living N symbiotic groups, fauna groups are able to conserve soil organic matter and improve soil physical properties. Important steps that need to be done in the evaluation of land cover inventory of soil biological populations and its role on the growth of crops, and evaluate the suitability of the soil biological parameters of the functional value of commodity options.
PRAKTEK DEMOKRASI DAN PARTISIPASI MASYARAKAT DALAM PEMILIHAN KEPALA DESA DI DESA BAJOMULYO KECAMATAN JUWANA KABUPATEN PATI Septiani, Melinda; Santosa, Edi; ., Fitriyah
Journal of Politic and Government Studies Vol 6, No 04 (2017): Periode Wisuda Oktober 2017
Publisher : Journal of Politic and Government Studies

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Abstract

The election of the village head is one of the democratic parties that are held in the regions that have the government. In the general election of village heads there are many fraudulent acts such as money politics that can affect the voice of either whether it is money or basic needs. Community participation as an option can vote in the form of votes and determine who will be elected head of the village in Pilkades directly. People who are ready in the elections whether they participate in voting or golput and whether they vote because of the influence of money politics.The method used in this study is quantitative analysis is by data collection techniques by means of observation, questionnaires and documents. Data analysis techniques used by researchers to the results obtained is by statistical instrument application SPSS. SPSS is useful to minimize errors in the calculation of data recapitulation that is present percentage so that the data obtained in valid. The results of this study indicate how the money politics that exist in the selection of Village Head Bajomulyo Juwana District Pati 2013 by way of validity, reliability, single table and cross table for the results obtained can be maximized.Furthermore, the hypothesis tested by partial t test obtained by the results of 1.990 which means to be a comparison of whether there is influence money politics on public participation in the election of Head of Bajomulyo Village 2013 that is with the results obtained at 1.556 and 1.582 which means t table is greater than t arithmetic the result is that there is no political influence of money on the participation of the people in choosing. And it is expected that village level institutions provide a lot of political learning to the public so that people know the danger of money politics.Keywords : Money Politics, Society Participation , Election of village head
INVASIVE WEEDS IN BOGOR BOTANIC GARDENS, INDONESIA AND ITS IMPLICATION ON SURROUNDING LANDSCAPES Santosa, Edi; Widiyanto, Gunar; Lontoh, Adolf Pieter; Agustin, Elly Kristiati; Takahata, Ken; Mine, Yoko; Sugiyama, Nobuo
Buletin Kebun Raya Vol 17, No 2 (2014): Buletin Kebun Raya Vol. 17 (2) July 2014
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Conservation areas with the objective for collection and exchange plant materials have been speculated as weed bank for surrounding areas. Objective of this study was to identify and characterize ruderal invasive weeds in the Bogor Botanic Gardens (BBG). Observations were conducted in all vak (collection blocks) in the BBG in order to identify the weeds species, determine their invasiveness, dominance and distribution. Weeds associations with host plants were observed. Current weed control program and data of dead trees collection were analyzed in relevant to weed. Distribution of weeds outside BBG was observed by transects method following river and road directions. Results showed that there were seven invasive weeds, i.e., Cecropia adenopus (Cecropiaceae), Cissus nodosa Blume (Vitaceae), Cissus sicyoides Blume (Vitaceae), Dioscorea bulbifera L. (Dioscoreaceae), Ficus elastica Roxb. (Moraceae), Mikania micrantha H.B.K. (Asteraceae) and Paraserianthes falcataria (L.) Nielsen (Fabaceae). These seven weeds species invaded 41 out of 215 plant families in BBG. Six species of weeds, i.e., C. adenopus, C. nodosa Blume., C. sicyoides Blume., D. bulbifera L., M. micrantha H.B.K. and P. falcataria (L.) Nielsen, were introduced as BBG collections for the first time while the F. elastica Roxb was considered as native. It is most likely that the weeds dispersal agents are the wind, birds, bats, visitors, and waters. All of these weeds existed in surrounding areas outside BBG. Given the detrimental impact of invasive weeds on the plant collection in BBG, it is necessary to develop long–term comprehensive control measures both inside and neighboring areas by involving other government authorities beyond BBG.
STUDI EVALUASI DAMPAK PEMEKARAN DESA WONOKARTO TERHADAP PEMBANGUNAN INFRASTRUKTUR DI DESA PEMEKARAN (STUDI KASUS DESA WONOASRI, DESA WONOSOBO DAN DESA WONOKARTO KECAMATAN NGADIROJO KABUPATEN PACITAN) Khasanah, Siti Uswatun; Santosa, Edi; Alfirdaus, Laila Kholid
Journal of Politic and Government Studies Vol 7, No 1 (2018): Periode Wisuda Januari 2018
Publisher : Journal of Politic and Government Studies

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Abstract

Lawfully, an implementation of separated village is determined in the regent legal ofPacitan on 31, 2006 about village building of Wonosobo and Wonoasri of Ngadirjo at Pacitancity. Wonosobo and Wonoasri are derivation town from Wonokarto in which it has beendivided on three autonomous area, such us; Wonoasri, Wonosobo and WonokartoBasically separated area gives an opportunities for social Safety, which becomes oneof the aims of govermental existance. On the other hand, automatically it also facilitatesgovernment to increase an coordination effeciveness and management of village building.Based on the government regulation of 78, 2007 that unfoldment aims to develop aninfrastructure building.This research is done not only to undurstand the development of the villageinfrastructure building after it has been divided, to understand the positive and negativeeffects to infrastructure building, to understand the impeding factors to infrastructure villagebut also to know an effect evaluation success of separated village of Wonokarto forinfrastructure building in the unfoldment area—Wonoasri, Wonosobo and Wonokarto.The research method which uses here is mixed method integrating two approaches inall the process researches. Thera are three towns becoming a population and sample of thisresearch such us; Wonoasri, Wonosobo and Wonokarto and it utilizes an interview andqoesioner technique. There are 99 respondens; 36 communities of Wonoasri; 23 communitiesof Wonosobo; and 40 communities of Wonokarto. There are 9 informans who wereinterviewed; social figures and other comuunities.The result of this research shows the result of evaluation effect of separated village ofWonokarto influences to infrastructure building in the three separated viilages—Wonoasri,Wonosobo and Wonokarto. The obstacles of this iplementation are internal and externalfactors, the expends, the participation of govornment, geogaraphical factor and anothers.The recommendation that can be given is urgently an active role of government andcommunities in either the planning, implementation, or perputation of village infrastructure.Keywords: Separated village, infrastructure building
ANALISIS DAMPAK IMPLEMENTASI KEBIJAKAN DAN PERSEPSI MASYARAKAT TENTANG ASLIH FUNGSI LAHAN TERHADAP TINGKAT KESEJAHTERAAN PETANI Firdiansyah, Farhan; Santosa, Edi; Astuti, Pudji
Journal of Politic and Government Studies Vol 6, No 03 (2017): Periode Wisuda Agustus 2017
Publisher : Journal of Politic and Government Studies

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Abstract

Penelitian ini bertujuan mengkaji tentang implementasi kebijakan Rencana Tata Ruang Wilayah di Kabupaten Semarang. Kebijakan Pembangunan di Kabupaten Semarang dilakukan untuk meningkatkan kesejahteraan masyarakat. Penelitian ini menganilisis dampak yang terjadi dari implementasi kebijakan pembangunan, mengetahui dampak yang ditimbulkan dari pembangunan dan persepsi masyarakat sekitar yang merasakan dampak dari kebijakan pembangunan tersebut. Peneliti memilih Desa Banyukuning, Kecamatan Bandungan, Kabupaten Semarang sebagai studi kasus penelitian. Dimana akan diukur dampak yang terjadi dari implementasi kebijakan terhadap konversi lahan yang berpengaruh terhadap tingkat kesejahteraan petani serta mengetahui persepsi masyarakat tentang implementasi kebijakan Rencana Tata Ruang Wilayah Kabupaten Semarang. Metode yang digunakan dalam peneitian ini adalah metode penelitian kombinasi dengan pendekatan kualitatif dan kuantitatif dengan metode deskriptif. Dalam memperoleh data, peneliti menggunakan alat penelitian wawancara dengan informan penelitian adalah Badan Perencanaan dan Pembangunan Kabupaten Semarang, Dinas Pekerjaan Umum Kabupaten Semarang dan Pihak lain yang terlibat dalam implementasi kebijakan serta menyebar kuisioner kepasa masyarakat dan dianalisis menggunakan skala likert serta menguji pengaruh dengan analisis Chi-Square. Peneliti juga menggunakan data sekunder yang berasal dari Peraturan Daerah terkait serta sumber kepustakaan lain seperti buku dan jurnal. Hasil penelitian menunjukkan bahwa implementasi kebijakan masih kurang baik dari segi pengawasan. Hal tersebut dibuktikan dengan tingginya angka konversi lahan pertanian yang terjadi karna pengawasan yang kurang intensif. Selain itu dari hasil penelitian dari masyarakat bahwa konversi lahan yang dilakukan oleh pemilik lahan dilakukan dengan tujuan untuk dapat meningkatkan taraf hidup serta kebutuhan akan lahan rumah bagi masyarakat dari adanya pertumbuhan penduduk. Dari hal tersebut memperlihatkan angka kesejahteraan petani yang menurun melalui penghitungan Nilai Tukar Petani. Oleh karna itu, pemerintah harus lebih memperketat pengawasan guna tercapainya implementasi yang sesuai dengan tujuan kebijakan.Kata Kunci : Implementasi Kebijakan, Persepsi Masyarakat, Konversi Lahan,Kesejahteraan Petani
Analisis Kebijakan Lingkungan dan Partisipasi Stakeholders Terhadap Tingkat Keberhasilan Program RTH di Kota Semarang ( Studi Kasus : Pembangunan Taman Kota di Semarang Tahun 2017) Sefdiany, Chauvina; Santosa, Edi
Journal of Politic and Government Studies Vol 8, No 04 (2019): Periode Wisuda Oktober 2019
Publisher : Journal of Politic and Government Studies

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Abstract

Pembuatan kebijakan oleh pemerintah sebagai salah satu tindakan untuk mengurangi masalah yangada disekitar seperti yang dilakukan oleh Pemerintah Kota Semarang dalam menjaga kelestarianlingkungan dengan membuat kebijakan lingkungan. Kebijakan lingkungan itu diimplementasikanmelalui program Ruang Terbuka Hijau berupa pembangunan Taman Kota sebagai wujud daripembangunan kota yang berkelanjutan. Dalam hal ini pemerintah Kota Semarang menetapkan Peraturan Daerah Kota Semarang No. 7 Tahun2010 Tentang Penataan Ruang Terbuka Hijau pasal 93, 94, 95, dan pasal 96, agar pembangunan kotatetap terlaksana tanpa mengurangi lahan RTH. Perda tersebut mengacu pada Undang – Undang No.26tahun 2007, tentang Penataan Ruang, pada pasal 29 ayat 1 dan ayat 2 disebutkan bahwa proporsiRuang Terbuka Hijau wilayah kota paling sedikit 30% dari luas wilayah kota, dan proporsi RuangTerbuka Hijau Publik pada wilayah kota paling sedikit 20% dari luas wilayah kota.Dalam hal ini penulis akan lebih berfokus pada analisis kebijakan lingkungan dan partisipasistakeholders terhadap tingkat keberhasilan RTH Kota Semarang. Berdasarkan hasil penelitian yangdidapat bahwasannya kebijakan lingkungan dan partisipasi stakeholders turut mempengaruhitingkat keberhasilan RTH Kota Semarang sebesar 24,2%. Masih ditemui juga beberapa hambatandidalam implementasi dari program RTH Kota Semarang, yang menjadikan implementasi programtidak mencapai titik maksimal.
Peran Sektor Swasta dan Partisipasi Masyarakat dalam Pembangunan Ruang Terbuka Hijau (RTH) Berdasarkan Perda No.6 Tahun 2012 tentang Rencana Tata Ruang Wilayah (RTRW) Kota Tangerang 2012-2032 (Studi Kasus: Kecamatan Tangerang) Kuswati, Sundari; Santosa, Edi; Ghulammanar, Dzunuwanus
Journal of Politic and Government Studies Vol 7, No 1 (2018): Periode Wisuda Januari 2018
Publisher : Journal of Politic and Government Studies

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Abstract

ABSTRACTOne of the concept of development is sustainable, which means the process or development activity is an activity that is carried out on an ongoing basis with the main goal is to meet the needs of human life in order to improve the welfare of man. In carrying out development activities, the Government involves other parties such as private and public. This happens almost every development activity, not least the development of green space in Tangerang. Regulation No. 26 of 2007 concerning spatial explains if every district / city must have green open space at least 30% of its area, with the percentage of 20% of the public green open space which became the responsibility of the Government and 10% Private green open space which became the responsibility of the private sector and the community.Research methods used in this research is the mix method by using the technique of sequential explanatory, this technique is characterized by the data collection and analysis of quantitative data on the first stage, followed by the collection and the analysis of qualitative data at the second stage, in order to strengthen the results of quantitative research in the first stage. Research done in district of Tangerang to the number of samples as much as 68 respondents, with a research instrument using a detailed questionnaire. Researchers also use data results of in-depth interviews with resource-related, as well as other supporting secondary data that comes from books, journals, news media, and sources of other libraries.The results in this study indicate that there is a significant influence of the private sector with a percentage of 10% and the effect of a strong influence on public participation with a percentage of 20.8% influence in the development of open green space in the district of Tangerang. RTH development process will continue to be implemented, so that at the end of a planning period of development (2032) RTH percentage can reach 30% as mandated by law. Increasing the role of the private sector and community participation will continue to be pursued, the regulatory application process improvement will be done so that development planning activities can be run in accordance with what has been organized and planned in the regulation. Keyword: Role of the Private Sector, Public Participation, Development of Green Open Space (RTH).
STUDI DESKRIPTIF IMPLEMENTASI KEBIJAKAN PEMBANGUNAN INFRASTRUKTUR JALAN DI KABUPATEN SEMARANG TAHUN 2013 fathorikh, fatnan; SANTOSA, EDI; DZUNUWANUS, GHULAM
Journal of Politic and Government Studies Vol 5, No 03 (2016): Volume 5,Number 3, Tahun 2016
Publisher : Journal of Politic and Government Studies

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Abstract

ABSTRACTPolicy implementation in providing regional infrastucture towardinvestment and economic drivers is a policy that set by government into SemarangDistrict Regulation No. 7 of 2011 on the Semarang District Medium TermDevelopment Plan Year 2010-2015 by considering conditions and problems andneeds faced by communities as well as by considering strategic and potentialfactors of the community and local government.This study is a qualitative study with main purpose to describe aboutpolicy implementation in providing regional infrastuctures toward investment andeconomic drivers. It also explains inhibiting factor and the government’s strategyto solve problems. Data collection techniques in this study are using observationmethods, interviews and documentary study.The study concluded that policy implementation in providing regionalinfrastuctures toward investment and economic drivers has run optimally in itsimplementation. Semarang District Public Works Department and its Agencies /Related SKPD have made the development and roads aftercare service in thedistrict of Semarang properly and according to procedure. Moreover,socialization also has been done with coordination meeting between SKPD ordirectly to the public by village authoritiesHowever, there are some drawbacks such as lack of resources this islimitation on budgetary funds which resulted in burden for next financial year.Semarang District Government should attempte to actively communicate withcentral government to disburse APBN fund for infrastructure development in theSemarang Regency.Keywords: Implementations, Infrastructures, Semarang Regency, Policies.