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Arifin Tasrif
Politeknik Pembangunan Pertanian Bogor
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Pengaruh Pemberian Dosis Bokashi terhadap Pertumbuhan dan Hasil Jagung Manis (Zea mays L.): The Effect of Bokashi to the Growth and Revenue on Production of Sweetcorn Caroline Azzahra; Maya Purwanti; Arifin Tasrif
Jurnal Agroekoteknologi dan Agribisnis Vol. 5 No. 1 (2021): Jurnal Agroekoteknologi dan Agribisnis
Publisher : Politeknik Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.596 KB) | DOI: 10.51852/jaa.v5i1.462

Abstract

Penelitian ini dilakukan di Desa Pangkalan Benteng Kecamatan Talang Kelapa Kabupaten Banyuasin. Tujuan dilakukannya penelitian ini untuk mengetahui pengaruh pemberian bokashi terhadap pertumbuhan jagung manis, pengaruh pemberian bokashi terhadap hasil produksi jagung manis, dan peningkatan pendapatan dari pemberian bokashi pada jagung manis. Penelitian ini dilaksanakan menggunakan rancangan acak kelompok dengan lima ulangan. Perlakuan tanaman jagung manis terdiri dari 3 level diantaranya: P0 = Tanpa Pupuk (Kontrol), P1 = Pupuk Kandang, pemberian sebanyak 2 ton/ha (1kg/petak) dan P2 = Bokashi, pemberian sebanyak 2 ton/ha (1 kg/petak). Data dianalisis menggunakan Anova dan Uji Beda Nyata Terkecil serta analisis usahatani menggunakan R/C Ratio dan B/C Ratio. Hasil penelitian menunjukkan bahwa pemberian pupuk bokashi memberikan hasil yang lebih baik terhadap pertumbuhan tanaman yakni memiliki rata-rata lebih tinggi dari perlakuan lainnya, Pemberian bokashi meningkatkan hasil produksi berat basah sebesar 2,68 ton ha-1 atau 50% dibandingkan dengan kontrol. Pemberian bokashi dapat meningkatkan hasil produksi berat tongkol berkelobot 4,39 ton ha-1 atau 54,1% dibandingkan dengan kontrol, dan pemberian bokashi pada tanaman jagung dapat meningkatkan pendapatan petani Rp. 21.719.000, dengan R/C Ratio 5,28 dan B/C Ratio 4,28.
Penyuluhan Pemberian Ampas Tahu dan Gamal Dalam Ransum untuk Meningkatkan Bobot Badan Domba di Desa Ciakar Kecamatan Cijulang Kabupaten Pangandaran Cikal Beni Nata; Wahyuningsih; Arifin Tasrif
Jurnal Penyuluhan Pertanian Vol 16 No 2 (2021)
Publisher : Politeknik Pembangunan Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51852/jpp.v16i2.511

Abstract

The use of tofu and Gamal dregs in sheep rations for breeders in Ciakar village is not widely known. Therefore, the objective of this study is to see the extent of knowledge and skills in adopting simple technology regarding the use of tofu and Gamal dregs in sheep feed rations and increasing daily body weight (PPBH) of sheep. The study was carried out from April 5 to June 28, 2021. The treatment was given various doses of tofu and Gamal dregs to the daily weight gain of sheep and a questionnaire to see the level of knowledge and skills of sheep breeders using the additional feed. The results showed that the use of tofu and Gamal dregs was able to increase the PBBH by 171.5 g/head/day compared to the control (without giving tofu and Gamal dregs). In addition, the level of knowledge and skills of farmers increased by 52.88% and skills by 51.29% with the criteria of success for the adoption of simple technology using additional feed tofu dregs and Gamal in sheep feed rations.
Potensi Cendawan Antagonis Trichoderma Viride Isolat Bogor sebagai Agensi Pengendalian Hayati Penyakit Antraknosa Tanaman Cabai Merah: Antagonist Potential of Bogor Isolate of Trichoderma viride as a Biological Control Agent on Anthracnose Disease of Red Chilli Arifin Tasrif; Dwiwanti Sulistyowati; Yuliar; Bayu Adirianto; Endang Krisnawati; Dwi Sugihati
Jurnal Agroekoteknologi dan Agribisnis Vol. 8 No. 1 (2024): Jurnal Agroekoteknologi dan Agribisnis
Publisher : Politeknik Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51852/jaa.v8i1.731

Abstract

Anthracnose disease caused by Colletottrichum capsici on chili plants that can damage yields by up to 80%. Control with fungicides has not been able to provide maximum results, because the fungus can move due to water splashes, especially in the rainy season. The use of antagonistic fungi against Colletotrichum capsici. has been widely published but is still limited to laboratory and greenhouse scales. This study aims to analyze the potential of Bogor isolate Trichoderma viride antagonist fungus against the fungus C. capsici through in-vitro study in the laboratory, screen houses, and field conditions. The experiment was structured using Complete Randomized Design (CRD) with parameters that measured respectively the antagonistic ability, and the percentage of attack by C. capsici and the severity of anthracnose disease on chili plants were both tested in screen house condition. Bogor Isolate T. viride has potential as a biological control agent for chili plants. This is proven by the ability to suppress the growth of C. capsici by 71% in vitro. The use of the fungus T. viride with a concentration of 7x106 conidia/ml (full strength) can suppress the development of anthracnose by 59 to 87% under screen house conditions. In other words, the pathogenicity of capsici in red chili plants shows a severity level of 13 to 41%.
PENILAIAN KEPARAHAN GEJALA VIRUS PADA Capsicum frutescens BERBASIS INDEKS VEGETASI DAN PENGAMATAN VISUAL DI LAPANGAN Muhammad Taufik; Asmar Hasan; Sri Hendrastuti Hidayat; Ayu Kartini Parawansa; Arifin Tasrif
Jurnal Agrotek Tropika Vol 11, No 1 (2023): JURNAL AGROTEK TROPIKA VOL 11, FEBRUARI 2023
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v11i1.6063

Abstract

Infeksi virus dapat menyebabkan gejala yang bervariasi pada tanaman. Penilaian tingkat keparahan gejala virus tanaman di lapangan umumnya menggunakan metode konvensional berbasis pengamatan visual. Seiring dengan perkembangan teknologi digital saat ini, telah dikembangkan pula metode penilaian terkini berbasis analisis citra digital. Namun informasi terkait kepresisian dan keakurasian kedua metode penilaian tersebut masih sangat terbatas khususnya penilaian keparahan gejala yang disebabkan oleh virus. Penelitian ini bertujuan untuk mengevaluasi hasil penilaian keparahan penyakit berdasarkan metode konvensional dan analisis citra digital berbasis NDVI (Normalized Difference Vegetation Index) serta membandingkan akurasi kedua metode penilaian tersebut dalam mengestimasi variabel produksi tanaman. Survei lapangan dilakukan dengan melakukan perekaman citra dan pengamatan secara visual terhadap gejala serangan virus pada tajuk tanaman cabai. Dilanjutkan dengan pengukuran bobot buah sampel tanaman, dan analisis citra digital tanaman. Hasil penelitian menunjukkan bahwa penilaian keparahan gejala virus menggunakan metode analisis citra digital berbasis indeks vegetasi NDVI lebih presisi (standar deviasi < 0,04) dibandingkan metode pengamatan visual (standar deviasi > 4,00), khususnya pada fase generatif. Selain itu, metode indeks vegetasi NDVI juga lebih akurat dalam mengestimasi bobot buah cabai karena koefisien regresi bertanda positif dengan nilai R2 > 0,90.
Co-Authors Asmar Hasan Ayu Kartini Parawansa Bayu Adirianto Caroline Azzahra Cikal Beni Nata Dwi Sugihati Dwiwanti Sulistyowati Endang Krisnawati Maya Purwanti MUHAMMAD TAUFIK SRI HENDRASTUTI HIDAYAT Wahyuningsih Yuliar