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INDONESIA
Informatika Pertanian
Published by Badan Penelitian dan Pengembangan Pertanian
ISSN : 08521743     EISSN : 25409875     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT
Informatika Pertanian terbit 2 (dua) kali dalam setahun yaitu pada bulan Juni dan Desember, terbit sejak tahun 1991. Jurnal Informatika Pertanian telah terakreditasi oleh Direktorat Jenderal Penguatan Riset dan Pengembangan, kementerian Riset, Teknologi dan Pendidikan Tinggi Republik Indonesia dengan nomor Akreditasi No. 21/E/KPT/2018, Tanggal 9 Juli 2018. Jurnal Informatika Pertanian telah memiliki ISSN: 0852-1743, e-ISSN: 2540-9875. Jurnal Informatika Pertanian dikelola oleh Sekretariat Badan Penelitian dan Pengembangan Pertanian yang beralamat Jl. Ragunan No. 29 Jakarta Selatan, Jakarta, Indonesia 12540
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Articles 2 Documents
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Search results for , issue " Vol 21, No 1 (2012): JULI, 2012" : 2 Documents clear
PEMODELAN NERACA AIR TANAH UNTUK PENDUGAAN SURPLUS DAN DEFISIT AIR UNTUK PERTUMBUHAN TANAMAN PANGAN DI KABUPATEN MERAUKE, PAPUA Djufry, Fadjry
Informatika Pertanian Vol 21, No 1 (2012): JULI, 2012
Publisher : Sekretariat Badan Penelitian dan Pengembangan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1189.503 KB) | DOI: 10.21082/ip.v21n1.2012.p1-9

Abstract

Water balance modeling is one approach that can be used to predict the dynamics of soil water content for plant growth, so it can calculate the amount of crop water requirements, particularly at critical periods during which the soil moisture content is very low and in normal circumstan ces. The experiment wasconducted April-November 2010 in Merauke district of Papua provi nce. The collect ion of clim ate data (rainfall, temperature, humidity), land information(based on soil type and land use map, primarily to det ermine water holding ca pacit y and root z one depthof the soils). Land water balance analysis was con ducted for each a nalysi s of distri cts using Thornthwaite and Mather (1957). Furthermore, the results of water balance of land was mapping used the geographic information system (GIS) method for knowing the districts that have the periods of water deficit or water surplus. The results showed that the dom inant patterns of rai nfall in t he district of Merauke is pattern A is a pattern that suggests that there is a clear di fferen ce between the a mount of rai nfall duri ng th e rain y sea son t o dry season. Merauke district experienced a period of water deficit of about 4-7 months for a year. Sub districts that have a period and a high amount of water deficit isKuprik for 7 consecutive months. Sub districts that have a short period of deficit 4 months is Jagebob, Kimaan and Muting. The potential for planting food crops in Merauke district ranges from 5-7 months. The surplus per iod i s about 3-6 mont hs of November to May/June. Sub districts that have a longer period surplus isJagebob and Kimaant is 6 months. The most of the sub districts (6 sub districts) in the Merauke districthas a surplus of water> 1000 mm / year. There are only two sub districts that have surplus water <1000 mm / year is Kupri k and Sota. Sub distri cts t hatobtain high water surplus for the year is Semangga. Pot ential of th e short growing season found in Kuprik (3 months) while the potential of the growingseason is long (6 months) in almost every sub district (Semangga, Okaba, Muting Kimaan, and Sota). Water bal ance model is developed en ough valid forpredicting soil water availability and timing of food crop planting in Merauke district of Papua province 
ANALISIS STABILITAS HASIL DENGAN MODEL EBERHART-RUSSEL’S DAN BIPLOT PADA UML JAGUNG QPM Gaffar, M.Yasin Hasanul; Santoso, Sigit Budi; Sunarti, Sri
Informatika Pertanian Vol 21, No 1 (2012): JULI, 2012
Publisher : Sekretariat Badan Penelitian dan Pengembangan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.828 KB) | DOI: 10.21082/ip.v21n1.2012.p51-57

Abstract

Sta bility is one of the statist ical model for desirable properties to released a variety under wide cul tivat ion. The m odel of Eberhart -Russel’s and Biplot ha s been applied t o ana lyze of QPM as candidate new ICERI (Indonesian Cereals Research Institute) variety, there are 14 genotypes F1 (single cross) fr om in bred lines S3-S4 of populat ion MSQ.K1C0 x tester MR14Q an d 2 opv. (open pol linat ed var iety) were conducted in seven environment un der central maize production in Indonesi a i.e. Sout h Sul awesi (Mar os e1, Bajeng-Gowa, e2), Central Sulawesi (Donggala, e3), East Java (Muneng-Probol ingg, o, e4), South Ka liman tan (Ba njarba ru, e5, and Pala ihari, e6), and Riau (Pakanbaru, e7). QPM is high lysine and tryptophane in endosperm maize. The exper iment in each environment wer e con ducted by r cbd (r andomi zed complete block design) with four replication in rainy sea son 2007, t he sta bilit y to studied by Eberha rt-Russel’s with mode l Y ij =μ+βiIj+δij, ij(Y: yiel d,μ:mean,β:regression coeffi cien t, I: envir onmen tal index and : δ0,=ΣIj deviation from regression), and sta bilit y par ameter j2jii/IIY=b,df of pool eddeviation and pooled err or computed by g(e-2)=80 and eg(r-1)=336, g: 16 of candidate QPM, e:7 environments. The result source of variation by rcbd that ther e are signi ficant of genotypes in all environm ents a nd in pool ed an alysi s by E berha rt-Russel’s were founded in teraction of gxe as significant. In bi plot x, y shown that single cr oss MSQ.K1C0.61-1-1xMR14Q was stable genotypes in seven environm ent an d could be recom mended as new candi date hybrids with aver age yi eld 6.673 t/ha. Positive inter action effect was founded on three candidate hybrids MSQK1C0.8-1-1xMR14,MSQ.K1C0.22-1-1xMR14Q, and MSQ.K1C0.61-1-1x MR14Q in Muneng-Pr obolin ggo, Donggala, and Banjarbaru. with yielded 5.384-6.988 t/ha.

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