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PENGARUH PEMUPUKAN NITROGEN TERHADAP PERTUMBUHAN DAN PRODUKTIVITAS JAGUNG PADA KONDISI N RENDAH DI LAHAN SAWAH ALUVIAL
Get PDFPengembangan jagung pada lahan dengan ketersediaan Nitrogen (N) tanah yang rendah memerlukan dosis pemupukan nitrogen yang tepat untuk meningkatkan pertumbuhan, produktifitas, dan efesiensi penggunaan pupuk nitrogen (EPN). Tujuan penelitian ini yaitu untuk mengetahui pengaruh aplikasi pemupukan N terhadap karakter agronomi, komponen hasi, dan hasil N setiap genotipe jagung hibrida yang diuji serta mengetahui efesiensi penggunaan pupuk dari takaran pupuk N yang digunakan. Penelitian ini dilaksanakan di kebun percobaan Balai Penelitian Tanaman Serealia pada bulan Maret sampai Juli 2019. Penelitian disusun dengan menggunakan rancangan acak terpisah dimana petak utama yaitu dosis pupuk N yang terdiri dari atas 0 kg N/ha, 75 kg N/ha, dan 200 kg N/ha. Anak petak terdiri dari 28 genotipe jagung hibrida dan dua varietas pembanding yaitu Bisi-18 dan P-36. Hasil penelitian menunjukkan bahwa pemupukan 200 kg N/ha dapat memacu tinggi tanaman dan indeks luas daun jagung hibrida G26/B11 masing-masing sebesar 36,54% dan 246,30%. Meningkatkan kandungan klorofil daun, diameter batang, panjang tongkol, jumlah baris biji per tongkol jagung hibrida G15/CY11 masing-masing sebesar 101,05%; 159,51%;61,10%; dan 98,60% serta meningkatkan diameter batang dan jumlah biji per baris jagung hibrida G5/B11 masing-masing sebesar 80,55% dan 55,04%. Hasil biji tertinggi terdapat pada jagung hibrida G10/MAL03 dengan pemupukan 200 kg N/ha (142,06%). Aplikasi 200 kg N ha-1 dapat meningkatkan efisiensi penggunaan pupuk nitrogen sebesar 19,58 kg/kg
Analysis of Heavy Metals Concentration and Pollution Index on Water Quality in Labuan Beach Fishery Port Area, Banten
Get PDFLabuan Coastal Fishing Port (PPP) is an area with great potential for development in the economic and tourism sectors. Apart from being the center of the fishing industry in Pandeglang Regency, PPP Labuan also has beach tourist attractions. Some activities could cause the entry of heavy metals into waters and affect water quality. These activities include ships refuelling, ships exhaust emissions, ships washing and paint spills, as well as beach tourism activities. The pollution index is used to determine the level of pollution in waters. This research aimed to analyze water quality and pollution indices based on the heavy metals content iron (Fe), nickel (Ni), and copper (Cu). Samples were taken from three observation stations, namely the beach tourist area (station 1), the fish auction site (station 2), and the pier (station 3). Analysis of the heavy metals Fe, Ni, Cu was carried out using the Atomic Absorption Spectrophotometer method and the results were compared with Indonesian government reulation, PP No. 82/2001. Pollution index analysis wasusing the pollution index method. The heavy metals content of iron (Fe) ranged from 1.761 – 6.907 mg/L, nickel (Ni) ranged from 0.079 – 0.269 mg/L, and copper (Cu) is < 0.001 mg/L. Based on the pollution index (IP), station 1 was lightly polluted with an IP value of 3.75. At station 2 it was moderately polluted with an IP value of 5.91, and at station 3 it was lightly polluted with a value of 4.2
PENGARUH ALOKASI WAKTU, KEGIATAN PRAKTIK DAN KOMPOSISI KURIKULUM TERHADAP KETERCAPAIAN TUJUAN DIKLAT DI BALAI DIKLAT LINGKUNGAN HIDUP DAN KEHUTANAN BOGOR
Get PDFPenelitian ini bertujuan untuk menguji dan mengevaluasi Program Diklat Terhadap Ketercapaian Tujuan Program Diklat di Balai Diklat Lingkungan Hidup Dan Kehutanan Bogor. Penelitianan dilakukan di Balai Diklat Lingkungan Hidup Dan Kehutanan Bogor dengan komponen yang dievaluasi terbagi menjadi tiga, yaitu alokasi waktu program diklat, kegiatan praktik dan kurikulum. Populasi dalam penelitian ini adalah peserta diklat di Balai Diklat Lingkungan Hidup dan Kehutanan Bogor dengan menggunakan rumus slovin diperoleh sampel sebanyak 81 peserta. Data yang dikumpulkan menggunakan metode survei dengan analisis regresi linear berganda. Hasil penelitian ini menunjukkan bahwa alokasi waktu program diklat, kegiatan praktik dan komposisi kurikulum diklat baik secara parsial dan simultan berpengaruh positif dan signifikan terhadap ketercapaian tujuan program diklat di Balai Diklat Lingkungan Hidup dan Kehutanan Bogor dengan variabel komposisi kurikulum memiliki nilai yang paling besar diantara variabel lainnya
Efektivitas Serapan Unsur Hara Nitrogen pada Pembibitan Tanaman Tebu (Saccharum officinarum L.)
Get PDFPemberian unsur nitrogen sangat penting untuk meningkatkan pertumbuhan dan hasil rendemen tanaman tebu. Untuk mengetahui waktu yang tepat agar dapat melakukan pemupukan, maka diperlukan kurva serapan tanaman selama masa pertumbuhan tanaman tersebut. Penelitian ini bertujuan untuk mengetahui efektivitas, penyerapan, dan hubungan serapan unsur hara nitrogen terhadap pertumbuhan bibit tanaman tebu. Percobaan dilakukan di Lahan KP 2 INSTIPER Yogyakarta Desa Wedomartani, Depok, Sleman, Yogyakarta pada bulan Mei 2022 – Juli 2022. Penelitian ini menggunakan metode rancangan faktorial satu faktor yang disusun dalam Rancangan Acak Lengkap (RAL). Faktor yang diuji adalah umur bibit tebu yang terbagi menjadi umur 8 minggu hingga 12 minggu dengan 3 kali ulangan. Media tanam yang digunakan dalam percobaan adalah tanah Latosol yang diberikan pupuk urea 14 g pada umur 9 minggu. Data diperoleh dari hasil pengamatan langsung dan uji laboratorium. Data yang diperoleh dari hasil penelitian dianalisis dengan menggunakan sidik ragam, perlakuan yang berpengaruh nyata diuji lanjut menggunakan uji duncan (DMRT) pada jenjang nyata 5%. Hasil penelitian menunjukkan terdapat pengaruh nyata antara lama waktu serapan hara nitrogen terhadap parameter pH tanah. Serapan unsur hara nitrogen meningkat seiring dengan penurunan pH tanah jika dibandingkan sebelum penambahan pupuk urea.
Nitrogen providing is very important to increase the growth and yield of sugar cane plants. To find out the right time to fertilize, a plant uptake curve is needed during the plant's growth period. This research aims to determine the effectiveness, absorption and relationship between nitrogen nutrient absorption and the growth of sugarcane seedlings. The experiment was carried out on the KP 2 INSTIPER Yogyakarta Farm, Wedomartani Village, Depok, Sleman, Yogyakarta in May 2022 – July 2022. This research used a one-factor factorial design method arranged in a Completely Randomized Design (RAL). The factor tested was the age of the sugarcane seedlings which was divided into ages 8 weeks to 12 weeks with 3 repetitions. The planting medium used in the experiment was Latosol soil which was given 14 g urea fertilizer at 9 weeks of age. Data was obtained from direct observations and laboratory tests. Data obtained from the research results were analyzed using variance, treatments that had a significant effect were further tested using the Duncan test (DMRT) at a real level of 5%. The results of the research show that there is a real influence between the length of time for nitrogen nutrient uptake on soil pH parameters. Nitrogen nutrient uptake increased along with decreasing soil pH when compared to before the addition of urea fertilizer
Analisis Kelayakan Usahatani Sayuran Sawi Pagoda (Brassica narinosa L.) Hidroponik di HPT Farm Tulungagung
Get PDFPertanian menjadi sektor penting dalam memenuhi kebutuhan sandang dan pangan masyarakat Indonesia. Dalam upaya meningkatkan produksi sayuran yang bersih, sehat, dan berkualitas, sistem hidroponik menjadi solusi yang menarik. Salah satu sayuran yang berpotensi dibudidayakan dengan sistem hidroponik adalah sawi pagoda (Brasicca narinosa L.) yang memiliki kandungan gizi dan vitamin penting untuk meningkatkan kekebalan tubuh. Penelitian ini bertujuan untuk menganalisis kelayakan usahatani sayuran sawi pagoda hidroponik di HPT Farm Tulungagung. Metode penelitian yang digunakan adalah kuantitatif deskriptif dengan pengumpulan data primer melalui wawancara dan observasi, serta data sekunder dari literatur dan jurnal terkait. Hasil penelitian menunjukkan bahwa total biaya produksi sawi pagoda hidroponik sebesar Rp1.321.399/bulan, dengan total penerimaan sebesar Rp3.307.500. Berdasarkan analisis R/C ratio, diperoleh nilai R/C sebesar 2,5 yang mengindikasikan bahwa usahatani sayuran sawi pagoda hidroponik di HPT Farm Tulungagung layak untuk dijalankan, karena setiap Rp1.000 biaya produksi menghasilkan penerimaan sebesar Rp2.500.
Agriculture is an important sector in meeting the food and clothing needs of the Indonesian people. In an effort to increase the production of clean, healthy and quality vegetables, hydroponic systems are an attractive solution. One of the vegetables that has the potential to be cultivated using a hydroponic system is pagoda mustard (Brasicca narinosa L.) which contains important nutrients and vitamins to increase immunity. This study aims to analyze the feasibility of hydroponic pagoda mustard vegetable farming at HPT Farm Tulungagung. The research method used was descriptive quantitative with primary data collection through interviews and observation, as well as secondary data from related literature and journals. The results showed that the total production cost of hydroponic pagoda mustard was Rp1.321.399 per month, with a total revenue of Rp3.307.500. Based on the analysis of the R/C ratio, an R/C value of 2.50 was obtained, which indicated that hydroponic pagoda mustard greens farming at HPT Farm Tulungagung was feasible, because every Rp1.000 production costs generate revenue of Rp2.500
PENDAPATAN MASYARAKAT DARI PROGRAM PENGELOLAAN HUTAN BERSAMA MASYARAKAT (PHBM) DENGAN SISTEM AGROFORESTRI (Studi Kasus : Desa Sumberejo BKPH Nglawungan KPH Blora Devisi Regional I Jawa Tengah Perum Perhutani)
Get PDFCommunity based forest management is believed to be able to increase agricultural and timber products, which has economic value. Farmers generally pay more attention to economic factors than to maintaining agricultural land and forests. The level of crop productivity and the income scale of agroforestry farmers are affected by the area of agroforestry land, so it needs to be maintained. This study aims to determine the pattern of agroforestry planting and community income from the Community Forest Management (PHBM) program with an agroforestry system in Sumberejo Village BKPH Nglawungan KPH Blora Perum Perhutani Regional Division I Central Java. The method used was purposive sampling with a survey approach. The sample was selected from 6 KTH, where each is 5-7 representative respondents with criteria of the land area of 0.25-0.1, active members of LMDH for at least one year, and farming for at least two years as well as heads of families who were sampled in this study. The research analysis uses the Pd = TR – TC formula, and the data analysis uses descriptive analysis based on tabulations. The results showed that the community participating in PHBM in Sumberejo Village was dominated by those aged more than 30 years, with an elementary school (SD) graduate education level and livelihood as agricultural workers. Application of the pattern with an agroforestry system is with a row pattern (alternate rows). The agroforestry component is agrisilviculture, with an average farmer income of IDR 24,691,320 in a year
The Utilization and Extraction Method of Nanocellulose: A Review
No full textCurrently, the use of nanocellulose is very broad in various fields, such as pharmaceuticals, cosmetics, and electronics industries. In its development, this nano-sized cellulose is widely used as a reinforcement nanocomposite nanofiller. Nanocellulose has several advantages, including its large surface area, very lightweight, easy to shape, ability to break through the performance limits of conventional materials, and having a high economic value. Nanotechnology develops based on new properties produced by nanomaterials as advanced materials. Therefore, the factor of the extraction process method must be considered to produce nanocellulose that has good quality and large quantity. Nanocellulose extraction can be accomplished in a variety of ways depending on the raw material but is generally done through a combination of chemical, mechanical, and biological treatments
PEMANFAATAN SAMPAH KULIT JERUK (Citrus nobilis Lour.) SEBAGAI ECO ENZYME (EE) DI DESA KOLOK NAN TUO, KECAMATAN BARANGIN, SAWAHLUNTO
Get PDFRecently, environmental problems have become a significant concern throughout the world. One of the most pressing issues is effective and sustainable waste management. In connection with this issue, community service activities have been carried out with the title efforts to use orange peel waste as an Eco enzyme, one of the efforts to utilize household organic waste. Kolok Nan Tuo Village is one of the villages that have orange crop commodities. So far, people must learn how to manage orange peel waste so it only becomes waste in the surrounding environment. The use of enzymes in organic waste processing has been widely researched. Eco enzyme, namely an enzyme developed with an environmentally friendly approach. This activity aims to inform the public about the impact of unmanaged organic waste (organic waste), the benefits and advantages of using Eco enzyme, how to make the Eco enzyme, and practice how to make Eco enzyme from orange peel waste. The methods used in this activity are the literature study, survey, counseling, and direct practice on making Citrus nobilis Lour Eco enzyme. The community was enthusiastic about this activity, as shown by the many questions and the desire to participate in direct practice in making Eco enzymes.
Keywords: Eco enzyme, Kolok Nan Tuo Village, Orange Peel
Abstrak
Akhir-akhir ini masalah lingkungan menjadi perhatian utama di seluruh penjuru dunia. Salah satu isu yang paling mendesak adalah pengelolaan limbah yang efektif dan berkelanjutan. Berkaitan dengan isu ini, maka telah dilakukan kegiatan pengabdian kepada masyarakat dengan judul upaya pemanfaatan sampah kulit jeruk sebagai eco enzyme, yang merupakan salah satu upaya pemanfaatan sampah organik rumah tangga. Desa Kolok Nan Tuo adalah salah satu desa yang memiliki komoditas tanaman jeruk. Selama ini masyarakat belum mengenal cara pengelolaan sampah kulit jeruk, sehingga hanya menjadi limbah di lingkungan sekitarnya. Penggunaan enzim dalam proses pengolahan sampah organik telah banyak diteliti. eco enzyme, yaitu enzim yang dikembangkan dengan pendekatan ramah lingkungan. Tujuan dari kegiatan ini adalah untuk memberikan informasi kepada masyarakat mengenai dampak limbah organik (sampah organik) yang tidak dikelola, manfaat dan keuntungan dari penggunaan eco enzyme, cara pembuatan eco enzyme serta praktik cara pembuatan eco enzyme dari limbah kulit buah jeruk. Metode yang digunakan dalam kegiatan ini adalah metode studi pustaka, metode survei, metode penyuluhan, dan praktik langsung cara pembuatan eco enzyme Citrus nobilis Lour. Masyarakat sangat antusias dengan kegiatan ini yang ditunjukkan dengan banyaknya pertanyaan dan keinginan untuk ikut praktek langsung dalam pembuatan eco enzyme.
Kata kunci: Eco enzyme, Desa Kolok Nan Tuo, Kulit Jeru
IMPLEMENTASI METODE FULL COSTING PADA PENENTUAN HARGA POKOK PRODUKSI SABUN CAIR CUCI PIRING BERBASIS EKSTRAK KULIT MANGGIS
Get PDFKulit buah manggis yang kaya dengan kandungan senyawa fenol/polifenol, epikatekin, antosianin, tanin, dan xanthone, yang hingga saat ini sudah mulai banyak dimanfaatkan oleh masyarakat pada industry skala rumah tangga, salah satunya pada pembuatan sabun cair cuci piring di UMKM Pelangi Gunung Suling. Namun umumnya industry skala rumahan dalam penetapan harga jual produknya masih berdasarkan taksiran atau perkiraan saja, untuk itu perlu dikaji dalam implementasi penetapan harga pokok produksinya melalui penerapan metode Full Costing sebagai dasar dalam penetapan harga jualnya. Tujuan penelitian ini adalah untuk mengevaluasi penetapan harga pokok produksi dengan menggunakan metode full costing sebagai dasar penetapan harga jual produk sabun cuci piring dengan pewarna dan bahan aktif ekstrak kulit manggis. Hasilnya memperlihatkan bahwa perhitungan harga pokok produksi berdasarkan metode full costing adalah Rp. 206.700,00 per produksi atau Rp. 13.212,00 per unit kemasan 500 ml, dan harga jual menurut perusahaan Rp. 11.000,00, harga jual perusahaan berada pada posisi tidak mendapatkan keuntungan seperti yang diharapkan
Effect of Rhizobium Inoculation and Phosphate Fertilizer on The Growth of Soybean (Glycine max L) Grobogan Variety
Get PDFVarious strategic efforts to increase food production continue to be made in an effort to achieve self-sufficiency and food security. Soybean is a national strategic commodity to support government programs in an effort to increase production with the aim of achieving self-sufficiency. The purpose of this study was to determine the effect of the combination of phosphate fertilizer and rhizobium biofertilizer on the growth of soybean (Glycine max L) Grobogan variety. The research was conducted from June to September 2022 at the Ma'had Al Zaytun Agricultural Complex, Indramayu Regency. The method used is the method of randomized block design with a combination pattern. There were 9 treatment combinations of SP-36 phosphate fertilizer and rhizobium inoculation. SP-36 Fertilizer consists of 3 levels, namely 100, 150 and 200 kg/ha and Rhizobium with 3 levels, namely 0.05, 0.10 and 0.15 g/planting hole. Each combination was repeated three times so that there were 27 trial plots. Each experimental plot is 6 m2. The observed data were processed using analysis of variance and the Scott-Knott test. The results showed.that the combination-of SP-36 Phosphate fertilizer-and Rhizobium inoculation had-a significant effect on all observations both plant height, number of trifoliate leaves, number of branches, root volume