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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Agroekoteknologi Jurnal Agro Kultivasi Soil REns
Benny Joy
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Agriculture, Biological Sciences & Forestry Other

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Analisa Usaha Tani terhadap Aplikasi Pupuk Majemuk Cair pada Tanaman Jagung Manis Oviyanti Mulyani; Emma Trinurani Sofyan; Rija Sudirja; Yulianti Machfud; Benny Joy
Soilrens Vol 17, No 1 (2019)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (588.364 KB) | DOI: 10.24198/soilrens.v17i1.23246

Abstract

Analysis of the farming system is an applied science which concerns on how to use resources efficiently and effectively in agricultural business in order to get maximum results. In this analysis, one of the important aspects on agricultural production is fertilizer. Liquid compound fertilizer is a fertilizer with several advantages such as simple application, complete and balanced required nutrients, labour and time efficient, and easy to procure and store. The purpose of this study was to determine the analysis of farming system on the application of liquid compound fertilizer on sweet corn. This experiment used a Randomized Block Design (RBD) consisted of 10 treatments (8 treatments of liquid fertilizer doses, one treatment of fertilizer dosage recommendations for NPK and one control (without fertilizer)). Each treatment was repeated three times, with the total of 30 experimental plots. The results of this experiment were the application of compound liquid fertilizer provides a high relative value of agronomic efficiency and profits on corn. The treatment of 1 ¼ NPK liquid fertilizer dose gave higher RAE, R/C and B/C values compared to the control. NPK liquid fertilizer has a significant effect on the variables of soil (pH, N, P and K content) and yield components (N, P and K uptake). In general, the use of NPK liquid fertilizer can significantly increase the yield, with the highest yield on 1 ¾ dose and the yield of corn plants (18,329 kg/ha).
Pengaruh Beberapa Formula Pupuk UZAH Terhadap Ketersediaan N dan Kelarutan Cd dan Cr di Lahan Tercemar Limbah Industri Rija Sudirja; Benny Joy; Santi Rosniawaty
Soilrens Vol 14, No 2 (2016)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.808 KB) | DOI: 10.24198/soilrens.v14i2.11235

Abstract

Kerusakan ekosistem sawah akibat pencemaran limbah industri telah menurunkan produktivitas tanaman.  Penelitian ini bertujuan untuk menghasilkan produk pupuk tablet yang berfungsi menyediakan nutrisi bagi tanaman dan juga memiliki kemampuan mengatasi pencemaran di dalam tanah.  Bahan yang dijadikan komposisi formula pupuk tablet adalah urea, zeolit, arang aktif, dan kompos beragen hayati. Hasil percobaan menunjukkan bahwa penggunaan formula pupuk tablet berpengaruh nyata terhadap dinamika beberapa parameter kesuburan tanah dan logam berat.  Formula dari komposisi bahan urea, zeolit, arang aktif, dan kompos beragen hayati memberikan perbaikan nyata terhadap pH, KTK, NH4+, NO3-, dan N-total, serta menurunkan kadar logam berat Cd dan Cr di dalam tanah, jika dibandingkan dengan formula bahan urea dan kompos beragen hayati.  Formula A (60:20:10:10) merupakan pupuk tablet terbaik dalam mempengaruhi nilai pH dan KTK tanah, kandungan N total, NH4+, dan NO3-, serta menurunkan kadar Cd dan Cr di dalam tanah. Kata Kunci: tanah tercemar, pupuk tablet, nitrogen, logam berat, 
RESPONS KEMASAMAN DAN KANDUNGAN P-TERSEDIA DARI TANAH FLUVENTIC EUTRUDEPTS, KONSENTRASI P TANAMAN SERTA HASIL JAGUNG (Zea mays) AKIBAT APLIKASI PUPUK FOSFAT DAN KOTORAN SAPI Benny Joy; H.E. Hidayat Salim; Fajar Pratama Putra
Teknotan: Jurnal Industri Teknologi Pertanian Vol 1, No 2 (2007)
Publisher : Fakultas Teknologi Industri Pertanian

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Abstract

Penelitian untuk mengetahui respons kemasaman tanah (pH) dan kandungan P-tersedia pada tanah Fluventic Eutrudepts, konsentrasi P-tanaman dan hasil tanaman jagung akibat aplikasi pupuk fosfor dan kotoran sapi telah dilakukan di kebun percobaan Fakultas Pertanian Universitas Padjadjaran, Jatinangor pada bulan Agustus sampai dengan bulan November 2006.Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (Randomized Block Design) pola faktorial yang diulang tiga kali dan terdiri atas dua faktor. Faktor pertama adalah pupuk SP-36 yang terdiri atas empat taraf (tanpa pupuk SP-36, 21,83 kg P/ha, 43,66 kg P/ha, dan 65 kg P/ha), sedangkan faktor kedua adalah kotoran sapi dengan empat taraf (tanpa kotoran sapi, 5 t kotoran sapi/ha, 10 t kotoran sapi/ha, dan 15 t kotoran sapi/ha). Tanaman jagung varitas Bisma digunakan sebagai tanaman indikator.Hasil penelitian menunjukkan bahwa kecuali untuk respons kemasaman tanah (pH), interaksi antara takaran pupuk SP-36 dengan takaran kotoran sapi berpengaruh nyata terhadap kandungan P-tersedia tanah, konsentrasi P-tanaman, dan hasil tanaman jagung. Hasil penelitian juga menunjukkan bahwa hasil tanaman jagung tertinggi sebesar 4200 g/petak diperoleh dari kombinasi perlakuan takaran pupuk P sebesar 43,66 kg P/ha dengan 10 t kotoran sapi.Kata kunci: P-tersedia, Konsentrasi-P tanaman, pH tanah, Fluventic Eutrudepts
Potensi bakteri pelarut P dan Penambat N rhizosper kelapa sawit gambut saprik Ida Nur Istina; Happy Widiastuti; Benny Joy
Jurnal Agro Vol 7, No 1 (2020)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/5776

Abstract

Pemanfaatan pupuk hayati sangat berpotensi untuk menurunkan input produksi pada budidaya kelapa sawit khususnya pupuk. Penelitian bertujuan untuk mendapatkan Bakteri Pelarut P dan Penambat N yang berpotensi sebagai bahan pupuk hayati dari rizosfer tanaman kelapa sawit. Penelitian dilakukan di lahan gambut saprik Kabupaten Pelalawan, Provinsi Riau dari bulan Juni sampai November 2014. Pengambilan sampel tanah dilakukan menggunakan bor gambut pada bagian rizosfer dengan kedalaman sampai 20 cm. Isolasi dan karakterisasi dengan metode pure plate menggunakan media selektif N Ashby untuk penambatan N dan Pikovskaya untuk pelarutan P, sedangkan analisis fiksasi N dan pelarutan P dilakukan menggunakan HPLC dan spektrofotometer di Laboratorium mikrobiologi PT. RPN. Hasil penelitian menunjukkan bahwa tanah gambut saprik berpotensi sebagai sumber isolat bakteri pelarut P dan penambat N potensial. Jumlah isolat bakteri pelarut P yang berhasil diperoleh adalah 11 isolat sedangkan jumlah bakteri penambat N non-simbiotik adalah 6 isolat. Isolat bakteri pelarut P potensial asal Sungai Ara dengan kemampuan melarutkan P 329,94 ppm; sedangkan bakteri penambat N non-simbiotik potensial adalah asal Kuala Panduk dengan kemampuan fiksasi N 0,0293 mmol l-1jam-1. ABSTRACTUtilization of biofertilizer is potential to decrease production inputs on oil palm cultivation, especially fertilizer expense. The research aimed to obtain Solubilizing P-Bacteria and Non-Symbiotic Fixing N bacteria which potential as biological fertilizer from oil palm rhyzosphere. The research was conducted at Pelalawan sapric peat soil from June to November 2014. Soil samples were taken by using peat drill into 20 cm soil depth, while isolation and characterization used pure plate method by using the selective media N Ashby for N fixation and Pikovskaya for P solubility. N fixation and P dissolution analyzed by using HPLC and spectrophotometer at PT. RPN microbiology laboratory. The results showed that sapric peat soil potentially utilize as microbial resource. The number of phosphate solubilizing bacteria isolates were 11 isolates, while the number of non-symbiotic nitrogen fixation bacteria inhibiting N Azotobacter sp. were 6 isolates. The potential isolate of P-solubilizing bacteria was Sungai Ara origin with the ability to dissolve P about 329.94 ppm; while the potential of non-symbiotic N-fixing bacteria was Kuala Panduk origin with N fixation ability 0.0293 mmoll-1h-1.
RETARDED GROWTH OF LOWLAND RICE IN SALINE SOIL INOCULATED WITH NITROGEN-FIXER AZOTOBACTER Reginawanti Hindersah; Alia Halimatusy; Benny Joy; Mieke Rochimi Setiawati; Diyan Herdiyantoro
Jurnal Agroekoteknologi Vol 12, No 1 (2020)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v12i1.8782

Abstract

Low-land rice (Oryza sativa L.) cultivation in saline soils face some constraints include nitrogen availability. Saline-resistant nitrogen fixing bacteria Azotobacter are expected to increase supply nitrogen in saline soils. The objectives of the study were to determine the effect of liquid inoculant concentration of two Azotobacter isolates on early vegetative growth of lowland rice grown in potted saline soil.  The greenhouse trial design was a randomized block design with seven treatments and four replications. The treatments were combination of isolates and Azotobacter liquid inoculant concentrations in single and mixed inoculation. The results showed that all plants experienced chlorosis and stunt due to high Electrical Conductivity. Inoculation of different isolates and concentrations did not influence the growth of lowland rice in soil with high EC at the end of experiment. Therefore, neither isolates nor concentration of Azotobacter could improve retarded-growth of lowland rice in saline soil.
Effectiveness of water hyacinth compost and N, P, K, S fertilizer on S-available, S uptake, protein content, and yield of shallot in Inceptisols from Jatinangor Emma Trinurani Sofyan; Fajar Akbar Gumelar; Anni Yuniarti; Benny Joy; Fiky Yulianto Wicaksono
Kultivasi Vol 22, No 1 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i1.38589

Abstract

. Water hyacinth (Eichhornia crassipes) is a source of organic matter that can be used as compost to improve the soil quality and productivity of shallots. Shallots are horticultural commodities that have various benefits. Inceptisol soils dominate Indonesia, with an area of 37.5% of Indonesia's land area but have low soil fertility. Soil fertility can be increased by optimal fertilization. This experiment aimed to determine the dose of water hyacinth compost and nitrogen (N), phosphor (P), potassium (K), sulfur (S) fertilizer which gave the best effect on increasing available S, S uptake, protein content, and yield of shallots. The experiment was conducted from July to October 2021 at the Experimental Garden of the Laboratory of Soil Chemistry and Plant Nutrition, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. The experiment used a Randomized Block Design, consisting of seven treatments repeated four times. The recommended fertilizer doses used are 200 kg Urea, 500 kg ZA, 300 kg SP-36, and 200 kg KCl. The compost used was water hyacinth compost at a 25 t/ha dose. The results of this experiment showed that the treatment of ¾ compost + ¾ doses of N, P, K, and S was the best in increasing available S (26.79 mg kg-1), S uptake (7.03 mg/plant), protein content (0.95%), colors and shallot yield (number of tubers, fresh weight, and dry weight) on Inceptisols from Jatinangor.
Co-Authors Alia Halimatusy Anni Yuniarti DIYAN HERDIYANTORO Emma Trinurani Sofyan Fajar Akbar Gumelar Fajar Pratama Putra Fiky Yulianto Wicaksono H.E. Hidayat Salim HAPPY WIDIASTUTI Ida Nur Istina Mieke Rochimi Setiawati Oviyanti Mulyani Reginawanti Hindersah Rija Sudirja Santi Rosniawaty Yulianti Machfud