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All Journal Jurnal Agroekoteknologi agriTECH Gema Wiralodra Perbal : Jurnal Pertanian Berkelanjutan
Sri Ritawati
Universitas Sultan Ageng Tirtayasa, Indonesia
Agriculture, Biological Sciences & Forestry Other

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Kesesuaian Model Infiltrasi Philips untuk Prediksi Limpasan Permukaan Menggunakan Metode Bilangan Kurva Sri Ritawati; Muhjidin Mawardi; Sunarto Goenadi
agriTECH Vol 32, No 3 (2012)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (605.424 KB) | DOI: 10.22146/agritech.9607

Abstract

The objective of this study was to determine suitability and applicability of the Philips infi ltration model for predicting surface runoff using the Curve Number method. The data of infi ltration rate obtained from direct measurements in the fi eld on a variety of land use in the upper Progo sub watershed using double ring infi ltrometer method. Soil samples also taken for determination of physical properties at each location of infi ltration measurement. Data of landuse, rainfall, and river discharge were collected from the available data at Balai PSDA Progo Bogowonto Luk ulo and BP DAS Serayu Opak Progo. Test results showed that Philips infi ltration model was suitable for predicting surface runoff using curve number method. The suitability was examined by signifi cancy of deterministic coeffi cient, correlation coeffi cient, the mass balance, and the distribution of t.ABSTRAKPenelitian ini bertujuan untuk menganalisis kesesuaian model infi ltrasi Philips untuk prediksi limpasan permukaan menggunakan metode bilangan kurva. Data laju infi ltrasi diperoleh dari pengukuran langsung di lapangan pada berbagai macam penggunaan lahan di Sub DAS Progo Hulu menggunakan metode double ring infi ltrometer. Dilakukan pula pengambilan contoh tanah untuk penentuan sifat fi siknya di masing-masing lokasi pengukuran infi ltrasi. Sedangkan data luas penggunaan lahan, hujan, debit sungai digunakan data yang tersedia di Balai PSDA Progo Bogowonto Luk ulo dan BP DAS Serayu Opak Progo. Hasil pengujian menunjukkan bahwa model infi ltrasi Philips cukup sesuai digunakan untuk prediksi limpasan permukaan menggunakan metode bilangan kurva. Kesesuaian ini dilihat dari nilai koefi sien deterministik, koefi sien korelasi, imbang massa, dan distribusi t yang signifi kan.
RESPONS HASIL TANAMAN TOMAT (Lycopersicum esculentum Mill.) TERHADAP PEMBERIAN BEBERAPA DOSIS KOMPOS BATANG PISANG DAN KONSENTRASI AIR CUCIAN BERAS Sri Ritawati; Andi Apriany Fatmawaty; Arys Arys
Jurnal Agroekoteknologi Vol 11, No 1 (2019)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotek.v11i1.7623

Abstract

ABSTRACTThe research was determine yield response of tomato plants (Lycopersicum esculentum Mill.) to the giving of several doses of banana stem compost and theconcentration of rice washing water. This research was conducted in Pasir villageBinangun Waringin Kurung Serang Banten, with used Randomized CompletelyBlock Design as factorial with three repetation. The factor were examined included the compost banana stem: 20 ton ha-1 (60 g polybag-1); 25 ton ha-1 (75 g polybag-1); 30 ton ha-1 (90 g polybag-1), and a dose of rice water, namely: rice water 500 ml+500 ml of water; 750 ml rice water+250 ml of water; 1000 ml rice water. Parameters observed include: number of fruits per plant, fruit diameter and fruit weight per plant. The results showed that the dose of 25 ton ha-1 (75 g polybag-1) compost banana stem gave the best effect to the parameters of number of fruits per plant (4.85 fruits), fruit diameter (2.88 cm), and fruit weight plant-1 (87.51 g ). Provision of rice washing water concentration of 1000 ml of rice washing water tend gave better effect to parameter number of fruit plant-1 (4.24 fruit), fruit diameter (2.87 cm), and fruit weight plant-1 (85.10 g). However Between the use of compost banana stems and rice washing water interactions do not occured on the yield of tomato (Lycopersicum esculentum Mill.).
SEBARAN FRAKSI AL PADA PROFIL TANAH MASAM LAHAN KERING DI KABUPATEN LEBAK PROVINSI BANTEN Putra Utama; Sri Ritawati; Dewi Firnia
Jurnal Agroekoteknologi Vol 11, No 1 (2019)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotek.v11i1.7618

Abstract

ABSTRACTThe toxicity of Al, Fe, and Mn is highly determined by the shape of the metalfractions. Therefore, the specific forms of Al, Fe, and Mn inside the soil are veryimportant to know because they are related to soil fertility. The purpose of this study was to determine the distribution of the Al fraction on the acid soil profile of dry land in Lebak Regency, Banten Province. This research was conducted from April to June 2019 in Maja District, Lebak Regency, Banten. The research was descriptive explorative with intentional sampling for special purposive sampling. The soil was tested with a main parameter using single extraction for Al Fractionation. The results showed that the Al fraction in amorphous form (Al-o) was more dominant than Al in dissolved form (Al-dd) in all horizon layers (0-120 cm). Moreover, the Al fraction in organic amorphous form (Al-p) was also more dominant than Al in the inorganic amorphous form (Al-po) at horizon layer of 0-15 cm, while at horizon laeyer of 15-120 cm the Al-po form was higher than Al-p. Al fraction in the form of organic amorphous had higher bond compared with Al form of organic amorphous in the soil layer of 0-120 cm. 
Uji Konsentrasi Dan Interval Pemupukan Npk Terhadap Pertumbuhan Marigold (Tagetes Erecta L.) Nugroho E.D.S; Elonard Ardian; Rusmana Rusmana; Sri Ritawati
Perbal : Jurnal Pertanian Berkelanjutan Vol 7, No 3 (2019)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/perbal.v7i3.1415

Abstract

Abstrak Marigold merupakan tanaman herba hias yang saat ini mulai menjadi primadona serta memiliki nilai ekonomis yang cukup tinggi, oleh karena itu produktivitas dan kualitas bunga Marigold perlu ditingkatkan. Cara pemberian serta jenis pupuk yang tepat menjadi salah satu hal yang perlu diperhatikan agar menjadi efektif terhadap tanaman Marigold. Tujuan dari penelitian ini adalah untuk mengetahui keefektifan penggunaan pupuk NPK dalam bentuk konsentrasi dan interval pemupukan terhadap pertumbuhan tanaman Marigold. Penelitian didesain dengan Rancangan Acak Kelompok (RAK) yang terdiri dari dua faktor. Faktor pertama merupakan konsentrasi pupuk NPK yang terdiri dari tiga taraf, yaitu tanpa pupuk, 100 mg/liter air, dan 150 mg/liter air. Faktor kedua adalah interval pemupukan NPK yang terdiri dari 3 taraf, yaitu 1 kali/minggu, 1 kali/2 minggu, dan 1 kali/3 minggu. Seluruh perlakuan diulang sebanyak 3 kali, sehingga didapatkan kombinasi perlakuan sebanyak 27 plot. Parameter pengamatan meliputi tinggi tanaman, jumlah daun, diameter batang, inisiasi bunga, diameter bunga, lama kesegaran bunga. Perlakuan konsentrasi 150 mg/liter air dengan interval pemupukan 1 kali/minggu menjadi input yang optimal untuk pertumbuhan tanaman Marigold. Kata kunci: marigold, konsentrasi, interval pemupukan, pupuk NPK, pertumbuhan dan hasil
The effect of coffee grounds compost and planting media on the growth and yield of kailan plants (Brassica oleracea L.) Antoseno Priyo Hutomo; Sri Ritawati; Kiki Roidelindho; Putra Utama
Gema Wiralodra Vol. 15 No. 1 (2024): Gema Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/gw.v15i1.672

Abstract

The research aimed to determine the effect of composting from coffee waste and planting media composition on the growth and yield of the kailan plant (Brassica oleracea L.). This research was conducted from June until September 2023 in Pagenjahan Village, Kronjo District, Tangerang Banten. The method used a Randomized Completely Block Design (RCBD) as factorial with two factors and analyzed using SPSS. The first factor was the Compost from Coffee Waste (K) which consisted of four levels namely; 0 g Coffee Waste (K1), 10 g Coffee Waste (K2), 20 g Coffee Waste (K3), and 30 g Coffee Waste (K3). The second factor was the Planting Media Composition (M) which consisted of three levels namely; Topsoil Planting Media (M1), Topsoil Planting Media + Rice Husk Charcoal 1:1 (M2), Topsoil Planting Media + Cocopeat 1:1 (M3). The results showed that compost from coffee waste with 20 g dose (K2) had the best effect on the number of leaves at 14 DAP (Days After Planting), leaf area, total fresh weight, fresh weight consumption, and dry weight parameters. Planting media composition with Topsoil Planting Media + Cocopeat 1:1 (M3) had the best effect on the leaf area parameter. There was an interaction between compost from coffee waste and planting media composition on plant height at 14 DAP and 28 DAP. Nasution (2014), coffee waste influences the growth and yield of long bean plants (Vigna sinensis L.) and the best concentration is 20 grams.
Co-Authors Andi Apriany Fatmawaty, Andi Apriany Antoseno Priyo Hutomo Arys Arys Dewi Firnia Elonard Ardian Kiki Roidelindho Muhjidin Mawardi Nugroho E.D.S Putra Utama Rusmana, Rusmana Sunarto Goenadi