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PENGARUH PEMBERIAN KOMBINASI JENIS DAN DOSIS PUPUK KANDANG TERHADAP PH, N-TOTAL, SERAPAN-N, SERTA HASIL TANAMAN PAKCHOI (BRASSICA CHINENSIS L.) PADA FLUVENTIC EUTRUDEPTS Pujiningsih, Dewi Septian; Yuniarti, Anni; Sandrawati, Apong
Agrikultura Vol 30, No 1 (2019): April, 2019
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (533.343 KB) | DOI: 10.24198/agrikultura.v30i1.22701

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ABSTRACTThe effect of the combination types and dosages of manure on soil reaction, N-total, N-uptake, and yield of pakchoi (Brassica chinensis L.) on fluventics eutrudeptsThis research was conducted to determine the effect of the combination types and dosages of manure on soil reaction, N-total, N-uptake, and yield of pakchoi (Brassica chinensis L.) on Fluventics Eutrudepts. The study was conducted from April to Agustus 2010 in the research station Greenhouse Faculty of Agriculture, Universitas Padjadjaran, Jatinangor Sumedang, West Java, elevated at 700 meters above sea level. The experimental design used was Randomized Block Design (RBD) with eleven treatments and three replications, consisted of without fertilizer (control); one dose of inorganic fertilizer and chicken manure 25 g/polybag; 0.75 dose of inorganic fertilizer and chicken manure 37.5 g/polybag; 0.5 dose of inorganic fertilizer and chicken manure 50 g/polybag; 0.25 dose of inorganic fertilizer and chicken manure 62.5 g/polybag; no inorganic fertilizer and chicken manure 75 g/polybag; one dose of inorganic fertilizer and sheep manure 25 g/polybag; 0.75 dose of inorganic fertilizer and sheep manure 37.5 g/polybag; 0.5 dose of inorganic fertilizer and sheep manure 50 g/polybag; 0.25 dose of inorganic fertilizer and sheep manure 62.5 g/polybag; no inorganic fertilizer and sheep manure 75 g/polybag. The results showed that significant effects of soil reaction, N-total, N-uptake, and yield of pakchoi from combination of types and dosages of manure. Treatment of 0.25 dose of inorganic fertilizer and chicken manure 62.5 g/polybag increased yields of pakchoi became 76.77 g.Keywords: Manure combination, Pakchoi, Fluventics EutrudeptsABSTRAKPercobaan ini dilakukan untuk mengetahui pengaruh pemberian kombinasi jenis dan dosis pupuk kandang terhadap pH tanah, N-total, serapan-N, dan hasil tanaman pakchoi (Brassica chinensis L.)pada Fluventics Eutrudepts. Percobaan ini dilaksanakan pada bulan April sampai dengan Agustus 2010 di Rumah kaca kebun Percobaan Fakultas Pertanian Universitas Padjadjaran, Jatinangor, Kabupaten Sumedang, Jawa Barat, dengan ketinggian tempat 700 meter di atas permukaan laut. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) faktor tunggal dengan sebelas perlakuan dan tiga ulangan, yaitu yang terdiri dari tanpa pupuk (Kontrol); 1 dosis pupuk anorganik dan Pupuk kandang ayam 25 g/polibeg; 0,75 dosis pupuk anorganik dan Pupuk kandang ayam 37,5 g/polibeg; 0,5 dosis pupuk anorganik dan Pupuk kandang ayam 50 g/polibeg; 0,25 dosis pupuk anorganik dan Pupuk kandang ayam 62,5 g/polibeg; tanpa pupuk anorganik dan pupuk kandang ayam 75 g/polibeg; 1 dosis pupuk anorganik dan pupuk kandang domba 25 g/polibeg; 0,75 dosis pupuk anorganik dan Pupuk kandang domba 37,5 g/polibeg; 0,5 dosis pupuk anorganik dan pupuk kandang domba 50 g/polibeg; 0,25 dosis pupuk anorganik dan pupuk kandang domba 62,5 g/polibeg; dan tanpa pupuk anorganik dan pupuk kandang domba 75 g/polibeg. Hasil penelitian menunjukkan terdapat pengaruh terhadap pH, N-total, serapan N, dan hasil tanaman anorganik dan pupuk kandang ayam 62,5 g/polibeg dapat meningkatkan hasil tanaman pakchoi menjadi 76,77 g.Kata Kunci: Kombinasi pupuk kandang, pakchoi, Fluventics Eutrudepts
PENINGKATAN KUALITAS TANAH BEKAS TAMBANG PASIR MELALUI PENAMBAHAN AMELIORAN BIOLOGIS Nurbaity, Anne; Yuniarti, Anni; Sungkono, Sungkono
Agrikultura Vol 28, No 1 (2017): April, 2017
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.885 KB) | DOI: 10.24198/agrikultura.v28i1.12295

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ABSTRACTImproving soil quality from sand mining area by application of biological ameliorantsSoil from disturbed mine sites render to be unfertile and have poor characteristics. One of the solutions to improve the soil and to rehabilitate the ecosystem is through application of biological amendments such as organic matter, soil microbes, and plant which known to be adaptive such as dragon fruit (Hylocereus costaricensis). This study was aimed at understanding the effects of arbuscular mycorrhizal (AM) fungi and organic matter on soil C-organic, soil N-total, soil C/N, and length of bud of dragon fruits grown on soil originated from sand mining, Sumedang, Indonesia under greenhouse condition. Different types of organic matter i.e. chicken manure, goat manure, cow manure and rabbit manure were applied. Results of experiment showed that application of manures and AMF was significantly improved soil C-organic content, N-total, and C/N, as well as length of bud of dragon fruit plants. Planting soil from sand mine sites with dragon fruit combined with organic matter and mycorrhiza has potential as restoration tools on ecosystem of sand-mining areas.Keywords: Sand-mine, Mycorrhiza, Manure, Dragon fruitABSTRAKTanah pada lahan bekas tambang galian pasir memiliki tingkat kesuburan yang rendah. Salah satu upaya untuk meningkatkan kualitas tanah dan ekosistem di wilayah penambangan pasir adalah melalui aplikasi amelioran biologis berupa bahan organik, mikroba tanah, dan tanaman yang dikenal adaptif terhadap lahan berpasir, seperti buah naga (Hylocereus costaricensis). Tujuan dari penelitian ini adalah untuk mengetahui efek pemberian berbagai jenis pupuk kandang (PK: berasal dari kotoran ayam, kambing, sapi, dan kelinci) dan fungi mikoriza arbuskula (FMA) terhadap kandungan C-organik, N-total, C/N tanah dan panjang tunas bibit buah naga super merah yang ditanam pada tanah bekas tambang pasir asal Sumedang, Indonesia pada kondisi rumah kaca. Hasil percobaan menunjukkan bahwa pemberikan pupuk kandang dan mikoriza meningkatkan kandungan C-organik, N-total, C/N tanah dan panjang tunas bibit buah naga super merah secara nyata. Kombinasi PK sapi dengan FMA atau PK kelinci tanpa FMA menghasilkan tunas bibit buah naga terbaik. Penanaman buah naga di lahan bekas tambang pasir yang dikombinasikan dengan pupuk kandang dan mikroba tanah seperti fungi mikoriza memiliki potensi sebagai sarana untuk restorasi ekosistem di wilayah penambangan pasir.Kata kunci: Tambang pasir galian C, Pupuk kandang, Mikoriza, Buah naga
PEMANFAATAN KULIT BIJI HANJELI (COIX LACRYMA-JOBI L.) SEBAGAI PUPUK SILIKA ORGANIK TERHADAP PERTUMBUHAN, SERAPAN P DAN SI, SERTA HASIL HANJELI PADA INCEPTISOL JATINANGOR Mutaqin, Zaenal; Yuniarti, Anni; Nurmala, Tati; Solihin, Eso
Agrikultura Vol 28, No 3 (2017): Desember, 2017
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.164 KB) | DOI: 10.24198/agrikultura.v28i3.15748

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ABSTRACTUtilization of hanjeli seed skin as organic silica fertilizer in influencing the growth, P and Si absorption, and yield of hanjeli (Coix lacryma-jobi L.)This experiment was conducted to determine the effect of hanjeli seed shell as organic silica fertilizer on plant uptake and hanjeli pulut (Coix lacryma-jobi L.) yield on Inceptisol. The experiment was conducted in Experimental Station of Agriculture Faculty of Universitas Padjadjaran, Jatinangor, Sumedang Regency, West Java Province. The research was carried out in the altitude of 822 meters above sea level (asl) from May 2017 to October 2017. The method used was a Randomized Block Design (RBD) consisting of ten treatments with three replications, i.e. control, NPK standard, NPK + ¼ silica emulsion, NPK + ½ silica emulsion, NPK + ¾ silica emulsion, NPK + 1 emulsion of ash silica, NPK + ¼ nano colloidal silica, NPK + ½ nano colloidal silica, NPK + ¾ nano colloidal silica, and NPK + 1 nano colloidal silica. The results showed that the application of silica fertilizer influenced the absorption and the yield of hanjeli plant. The treatment of NPK + 1 colloidal nano silica gave the highest hanjeli yield of 210.63 g/plant.Keywords: Hanjeli seed skin, Organic silica fertilizer, Plant absorption, YieldABSTRAKPercobaan ini dilakukan untuk mengetahui pengaruh pemberian kulit biji hanjeli sebagai pupuk silika organik terhadap pertumbuhan, serapan tanaman, dan hasil hanjeli pulut (Coix lacryma-jobi L.) pada Inceptisol. Percobaan dilaksanakan di Kebun Percobaan Fakultas Pertanian, Universitas Padjadjaran, Jatinangor, Kabupaten Sumedang, Provinsi Jawa Barat. Lokasi penelitian berada pada ketinggian 822 meter di atas permukaan laut (dpl) pada bulan Mei 2017 sampai dengan Oktober 2017. Metode yang digunakan adalah Rancangan Acak Kelompok (RAK) yang terdiri dari sepuluh perlakuan dengan tiga kali ulangan yaitu kontrol, NPK standar, NPK + ¼ emulsi abu silika, NPK + ½ emulsi abu silika, NPK + ¾ emulsi abu silika, NPK + 1 emulsi abu silika, NPK + ¼ nano koloid silika, NPK + ½ nano koloid silika, NPK + ¾ nano koloid silika, serta NPK + 1 nano koloid silika. Hasil penelitian menunjukkan bahwa terdapat pengaruh pemberian pupuk silika organik terhadap serapan P, Si tanaman dan hasil hanjeli. Perlakuan NPK + 1 nano koloid silika memberikan Serapan P, Si tanaman serta hasil hanjeli tertinggi dengan nilai masing-masing sebesar 0,61 g/tanaman, 7,56 g/tanaman, dan 210,63 g/tanaman.Kata Kunci: Kulit biji hanjeli, Pupuk Silika Organik, Serapan dan Hasil Hanjeli
THE APPLICATION FOR COMBINING SYNTHETIC AND LIQUID FERTILIZERS TO IMPROVE PADDY YIELD Rustini, Rustini; Yuniarti, Anni; Machfud, Yuliati
Jurnal Penelitian Saintek Vol 23, No 2: Oktober 2018
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.848 KB) | DOI: 10.21831/jps.v23i2.19038

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This study was aimed at determining the best combination of N,P,K and Si-enriched liquid fertilizer on P-soil, P absorption and Si plant, Si total soil, and paddy yield. The study was carried out in Ciparanje experimental garden greenhouse, Faculty of Agriculture, Padjadjaran University, Jatinangor, Sumedang, West Java in August to December 2017. The location was around 750 masl. The materials used in this research activity include Ciherang Varieties, Urea, SP-36, KCl, straw and hanjeli compost at doses of 20 t.ha-1, and Liquid Fertilizers (PC) enriched by Si from paddy husk ash. Seeds used in research activities were 14 days after seeding (HSS). The experimental design was carried out using a Randomized Block Design (RBD) consisting of 10 treatments with three replications. Based on the results of the study, it can be concluded as follows: (1) Giving a combination of N, P, K and Si-enriched liquid fertilizer influences the P-soil, P absorption, Si plant, and Ciherang paddy, (2) The combination gives the best paddy result with Dry Grain (GKG) weight of 51.70 g / plant or equivalent to 6.62 t.ha-1.APLIKASI PENGKOMBINASI PUPUK SINTETIS DAN PUPUK CAIR UNTUK MENINGKATKAN HASIL PANEN PADIPenelitian ini bertujuan untuk mengetahui kombinasi terbaik antara pupuk N,P,K dan pupuk cair yang diperkaya Si terhadap P-tersedia tanah, serapan P dan Si tanaman, Si total tanah, dan hasil padi sawah. Penelitian dilaksanakan di rumah kaca kebun percobaan Ciparanje Fakultas Pertanian Universitas Padjadjaran, Kecamatan Jatinangor, Kabupaten Sumedang, Jawa Barat pada bulan Agustus sampai dengan Desember 2017. Lokasi percobaan berada di ketinggian sekitar 750 meter di atas permukaan laut (mdpl). Bahan yang digunakan dalam kegiatan penelitian ini di antaranya adalah padi sawah Varietas Ciherang, pupuk Urea, SP-36, KCl, kompos jerami, dan hanjeli dengan dosis 20 t.ha-1, dan Pupuk Cair (PC) yang diperkaya Si asal abu sekam padi. Bibit yang digunakan dalam kegiatan penelitian berumur 14 Hari Setelah Semai (HSS). Rancangan percobaan yang dilakukan menggunakan Rancangan Acak Kelompok (RAK) yang terdiri dari 10 perlakuan dengan tiga ulangan. Berdasarkan hasil penelitian dapat disimpulkan sebagai berikut. (1) Pemberian kombinasi N,P,K dan pupuk cair yang diperkaya Si berpengaruh terhadap P-tersedia, serapan P, serapan Si, dan hasil padi sawah varietas Ciherang pada Inceptisols asal Jatinangor. (2) Kombinasi memberikan hasil padi sawah terbaik dengan bobot Gabah Kering Giling (GKG) sebanyak 51,70 g/tanaman atau setara dengan 6,62 t.ha-1
KANDUNGAN C-ORGANIK, N-TOTAL TANAH SERTA HASIL PADI GOGO (ORYZA SATIVA L.) AKIBAT PERLAKUAN PUPUK ORGANIK PADA ULTISOLS ASAL DESA KENTRONG, PROVINSI BANTEN Rakhmalia, Rimma; R., Randy Gema; Yuniarti, Anni
Agrikultura Vol 26, No 2 (2015): Agustus, 2015
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (302.13 KB) | DOI: 10.24198/agrikultura.v26i2.8467

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ABSTRACTEffect of Organic Fertilizers on C-organic, total-N soil and Yield of Upland Rice (Oryza sativa L.) onUltisols Collected from Kentrong Area, Banten ProvinceThis experiment was aimed to study the effect of various kinds and dosages of organic fertilizers onC-organic, total-N soil and yield of upland rice (Oryza sativa L.) in Ultisols collected from Kentrongarea, Banten Province. The experiment was arranged in a randomized block design with tentreatments and three replications. The treatments were control (without organic ferlitizer), poultrymanure 37.5 g/polibag, poultry manure 75 g/polybag, poultry manure 112.5 g/polybag,vermicomposting 37.5 g/polybag, vermicomposting 75 g/polybag, vermicomposting 112.5g/polybag, compost of straw 37.5 g/polybag, compost of straw 75 g/polybag and compost of straw112.5 g/polybag. The result showed that there was an effect of various kinds and dosages of organikfertilizers on C-Organic, but there was no effect on N-Uptake. For the yield of upland rice, dosageof 112.5 g/polybag of poultry manure gave the best result which was 21.08 g/polybag.Keywords: C-organic, total-N, organic fertilizersABSTRAKPercobaan ini dilakukan untuk mengetahui pengaruh pemberian macam dan dosis pupuk organikterhadap C-organik, N-total dan hasil padi gogo (Oryza sativa L.) pada Ultisols asal Desa Kentrong,Provinsi Banten. Metode percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK),dengan sepuluh perlakuan dan diulang tiga kali. Sepuluh taraf tersebut terdiri dari perlakuankontrol (tanpa pupuk organik), pupuk kandang ayam 37,5 g/polibeg, pupuk kandang ayam 75g/polibeg, pupuk kandang ayam 112,5 g/polibeg, pupuk kascing 37,5 g/polibeg, pupuk kascing 75g/polibeg, pupuk kascing 112,5 g/polibeg, pupuk kompos jerami 37,5 g/polibeg, pupuk komposjerami 75 g/polibeg, dan pupuk kompos jerami 112,5 g/polibeg. Hasil percobaan menunjukkanterdapat pengaruh pemberian macam dan dosis pupuk organik terhadap C-Organik tanah tetapitidak berpengaruh terhadap N-Total. Untuk hasil panen padi gogo, dosis 112,5 g/polibeg pupukkandang ayam memberikan hasil panen padi gogo terbaik yaitu 21,08 g/polibeg.Kata kunci: C-organik, N-total, pupuk organik
APLIKASI PUPUK ORGANIK, NPK DAN BPF PADA ULTISOLS UNTUK MENINGKATKAN C-ORGANIK, N-TOTAL, SERAPAN N DAN HASIL JAGUNG MANIS (Zea mays saccharata Sturt.) Yuniarti, Anni; Machfud, Yuliati; Mita, Mita
Jurnal Agroekoteknologi Vol 6, No 1 (2014)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (61.609 KB)

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This research was conducted to find out the interaction of organic fertilizer, NPK with BPF on Ultisols of the organic carbon, total nitrogen, N uptake, and result of sweet corn (Zea mays saccharata Sturt). The research was conducted from June to September 2013 at the Experimental Ciparanje, Faculty of Agriculture, Padjadjaran University, Jatinangor, Sumedang, West Java elavated at 724 meters above sea level. The experimental design used was Randomized Block Design (RAK) arranged in factorial pattern with 14 treatments and three replicates. The first factor is organic and NPK fertilizers (P) consisting of seven levels : without organic fertilizer and NPK; POPG + ½ dose of NPK; POPG + 1 dose of NPK: Compost + ½ dose of NPK; Compost + 1 dose of NPK; Manure + ½ dose of NPK; Manure + 1 dose of NPK. The second factor is the Solvent of phosphoric Bacteria (B) consisting of two levels : without the BPF and BPF 10 mL The results of experiment showed that there was not interaction effect between different called organic fertilizer and NPK with BPF of organic carbon, total nitrogen, plant uptake of N, and results of sweet corn. Independently organic fertilizer, NPK gave significant effect on organic carbon, total nitrogen, plant uptake of N, results of sweet corn and BPF was significant effect of organic carbon and plant uptake of N but has not siginificant effect of total nitrogen and results sweet corn. Treatment POPG with 1 dose of NPK shows the best formulations can improve results of sweet corn on Ultisols Jatinangor, that is 249,17 g plant-1 or 9 t ha-1.
Pengaruh berbagai dosis pupuk silika organik dan tingkat kekerasan biji terhadap pertumbuhan dan hasil tanaman hanjeli pulut (Coix lacryma- Jobi.L) genotip 37”. Nurmala, Tati; Yuniarti, Anni; Syahfitri, N.
Kultivasi Vol 15, No 2 (2016)
Publisher : Fakultas Pertanian UNPAD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.752 KB)

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Penelitian ini bertujuan untuk mengetahui dosis silika organik dan tingkat kekerasan biji yang dapat memberikan pengaruh terbaik terhadap pertumbuhan dan hasil tanaman hanjeli pulut (Coix lacryma- Jobi.L). Penelitian ini dilaksanakan pada bulan Desember 2015 sampai dengan bulan Mei 2016 di Kebun Percobaan Ciparanje Fakultas Pertanian Universitas Padjadjaran, Jatinangor, Sumedang. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) yang terdiri dari enam perlakuan dan empat kali ulangan, yaitu: Kontrol; Silika dosis (4,50 g/tanaman); (9,00 g/tanaman); (13,50 g/tanaman); (18,00 g/tanaman); (22,50 g/tanaman), sehingga diperoleh 24 petak percobaan. Hasil penelitian menunjukkan bahwa, perlakuan tanpa pupuk silika organik berpengaruh terhadap biomassa total tanaman hanjeli, tetapi tidak berpengaruh terhadap tinggi tanaman, jumlah daun, jumlah anakan dan indeks luas daun tanaman hanjeli. Hasil menunjukkan bahwa perlakuan dengan pupuk silika organik pada dosis 9,00 g/tanaman, 13,50 g/tanaman dan 22,50 g/tanaman  memberikan hasil yang sama dengan perlakuan tanpa pupuk silika pada biomassa tanaman total. Hasil analisis korelasi menunjukkan adanya hubungan antara rendemen biji pecah kulit dengan kekerasan biji (r=0,26). Hasil tersebut mengindikasikan bahwa setiap peningkatan rendemen biji pecah kulit, akan diikuti kenaikan kekerasan biji. Kata kunci: Hanjeli (Coix lacryma- Jobi.L), pupuk silika organik, dosis pupuk.
PENGARUH KOMBINASI PUPUK N, P, K DAN VERMIKOMPOS TERHADAP KANDUNGAN C-ORGANIK, N TOTAL, C/N DAN HASIL KEDELAI (Glycine max (L.) Merill) KULTIVAR EDAMAME PADA INCEPTISOLS JATINANGOR Astari, Karina; Yuniarti, Anni; Sofyan, Emma Trinurani
Jurnal Agroekoteknologi Vol 8, No 2 (2016)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/j.agrtek.v8i2.1482

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Inceptisols is the type of soil in Indonesia that has low fertility. It is necessary to improve the soil fertility through the use of fertilizers and organic matter to raise the quality of Inceptisols. The research was aimed to know the effect of vermicompost and N, P, K fertilizer combination to Organic-C, Total N, C/N and yield of Edamame soybean on Inceptisols at Jatinangor. The research was carried out from March until June 2016 at Ciparanje Experimental Farm, Faculty of Agriculture of University of Padjadjaran at Jatinangor, Sumedang at an altitude about ± 765 meters above sea level. The research used the Randomized Completely Block Design (RCBD) that consisted of eight treatments and three replications. The treatments were: control (no treatment), ½, 1, and 1½ dose recommendation of N, P, K fertilizer (Urea 100 kg ha-1 + SP-36 150 kg ha-1 + KCl 125 kg ha-1), also, 5 and 10 t ha-1 vermicompost. The results showed that combination treatment of vermicompost and N, P, K fertilizer significantly increased Organic-C, Total N, C/N and yeild of Edamame soybean. The combination of 1 dose recommendation of N, P, K fertilizer and 5 t ha-1 vermicompost gave the best result that produced 116,5 g plant ha-1(10,4 t ha-1) yield of Edamame soybean.Keywords: C/N, Edamame soybean, Inceptisols, N,P,K fertilizer, Vermicompost.
PENGARUH ABU VULKANIK GUNUNG SINABUNG DAN BATUAN FOSFAT DALAM BENTUK NANOPARTIKEL TERHADAP RETENSI P, DELTA pH, DAN KEJENUHAN BASA PADA ANDISOLS CIATER, JAWA BARAT Arfin, Mahfud; Yuniarti, Anni; Dahliani, Dewi
Jurnal Agroekoteknologi Vol 9, No 1 (2017)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.242 KB)

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Andisols is a soil that develops from pyroclastic materials of volcanic eruption with the high P-Retention (85% or more). The aim of this research is to know the effect between the ameliorant of Sinabung volcanic ashes with the ameliorant of phosphate rock in nanoparticle form towards the P-retention, Delta pH and the base saturation on Ciaters Andisols, West Java. A randomized complete block design factorial with two factors was used in this research. The first factor is the volcanic ash and the second factor is phosphate rock which consists of four levels each amount of 0%, 2,5%, 5%, 7,5% with three replications. The result of this research showed that there was an interaction between the giving of volcanic ashes and the phosphate rock in nanoparticle form on the delta pH with the base saturation in the 1st month and also there was an independent effect on the P-retention with the base saturation in the 4th month. Combination of volcanic ashes with phosphate rock in nanoparticle form which is the dose combination of 2,5% each increased the delta pH in the 4th month incubation. The dose combination of volcanic ashes 7,5% with phosphate rock 5% increased the base saturation in the 1st month incubation. Volcanic ashes and phosphate rock each 7,5% decreased the P-Retention in the 1st month incubation.
PENGARUH DOSIS PUPUK SILIKA ORGANIK TERHADAP SILIKA TANAH DAN TANAMAN, PERTUMBUHAN DAN HASIL HANJELI (Coix lacryma-jobi L.) Yuniarti, Anni; Nurmala, Tati; Solihin, Eso; Syahfitri, Nurul
Jurnal AGROSAINS dan TEKNOLOGI Vol 2, No 2 (2017)
Publisher : Fakultas Pertanian - UMJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jat.2.2.81 – 94

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Hanjeli (Coix lacryma-jobi L.) memiliki potensi besar untuk dikembangkan karena dapat dimanfaatkan sebagai sumber pangan alternatif. Oleh karena itu dibutuhkan teknik budidaya yang tepat untuk meningkatkan produksi. Salah satu upaya yaitu pemanfaatan pupuk silika organik. Penelitian ini bertujuan untuk mengetahui dosis silika organik yang dapat memberikan pengaruh terbaik terhadap kandungan silika tanah dan silika tanaman, pertumbuhan serta hasil hanjeli pulut. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) yang terdiri dari enam perlakuan dan empat kali ulangan, yaitu: kontrol; silika dosis 4.50; 9.00; 13.50; 18.00; dan 22.50 g per polibeg. Hasil penelitian menunjukkan bahwa perlakuan kontrol tanpa pupuk silika organik berpengaruh terhadap biomassa total tanaman hanjeli, tetapi tidak berpengaruh terhadap silika tanah dan silika tanaman.AbstractJob Tear’s (Coix lacryma-jobi L.) has potential to deveeloped because it can be used as an alternative food source. Consequently, it needs more accurate cultivitation technique such as silica organic fertilizer. This study aims to determine the organic silica fertilizer that can give the best effect on silica in soil and crops, the growth and yield of job’s tears (C. lacryma-jobi L.). The research used rendomized block design (RBD) with six treatments and four replications, consistens of: control; organic silica dosage 4.50; 9.00; 13.50; 18.00; and 22.50 g per polybag. The results showed that treatment of control gave a significant effect on total biomasse of job’s tears plant, but not significant on silica in soil and plant.