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All Journal Agrosains: Jurnal Penelitian Agronomi JASc (Journal of Agribusiness Sciences)
Adriansyah Yoesoep
Department Of Agrotechnology, Faculty Of Agriculture, Universitas Alwashliyah, Medan, Indonesia
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Keragaman Serangga di Pola Pertanaman Tumpang Sari Kedelai-Titonia Putri Mustika Sari; Adriansyah Yoesoep; Lisdayani Lisdayani
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 1 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i1.47920

Abstract

Plants that have a wide range of insect presence, decreased insect diversity and abundance were so few consequenced because the absence of one insect species can be replaced by the presence of another. The bad consequences that occur are the types of plants that have specific insect specificities because the absence of these insects will cause the failure of plant pollination and will directly cause a decrease in crop production. This study aimed to determine the diversity of insect species that come in the soybean-tithonia intercropping. The method was used direct observation in tithonia-soybean intercropping, took insects using a sweep net in the morning. The results showed that there were 15 types of insects identified, namely Epilachna sp.; Coccinella sexmaculata; Coccinella transveralis; Verania lineata; Ropalidia fasciata; Priocnemis sp.; Naupactus leucoloma; Piezodorus guildinii; Bemicia tabaci; Agromyza phaseoli; Spodoptera sp.; Nezara viridula; Paederus fusipes; Hylaeus sp.; and Trigona sp. The range of results of the calculation of the diversity index showed that the five treatments in intercropping plants had the same abundance. So it was needed to calculate the highest diversity index value or maximum H expressed in Ln S. The maximum H value in this study is 2.708, which is a measure of moderate species diversity (1<H’<3).
Analisis Faktor-Faktor Yang Mempengaruhi Fluktuasi Harga Cabai Rawit (Capsicum Frutescens L) Di Pasar Padang Bulan Kecamatan Medan Selayang Tina Herianty Masitah; Adriansyah Adriansyah; Nining Susilawati
JASc (Journal of Agribusiness Sciences) Vol 6, No 1 (2022): "JASc" JOURNAL OF AGRIBUSINESS SCIENCES
Publisher : JASc (Journal of Agribusiness Sciences)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jasc.v6i1.12885

Abstract

Sektor pertanian memiliki peranan cukup penting dalam perekonomian nasional terutama perekonomian rakyat serta mendorong pemerataan pembangunan daerah dengan tetap memperhatikan kelestarian sumberdaya alamnya. Fluktuasi yang terjadi pada harga cabai,mengindikasikan bahwa cabai memiliki risiko harga.enentuan harga oleh permintaan dan penawaran dalam teori ekonomimikro, harga terbentuk olehkeseimbangan antar kurva permintaan dankurvapenawaran. Tujuan Penelitian ini adalah untuk mengetahui fluktuasi harga cabai rawit (Capsicum frutescens L)di Pasar Padang Bulan, Kecamatan Medan Selayang. Penelitian ini dilaksanakan di pasar Padang Bulan, Kecamatan Medan Selayang, Medan Sumatera Utara. Waktu pelaksanaan penelitian di mulai pada bulan September- November 2022. Data yang dikumpulkan dalam penelitian terdiri dari data primer dan data sekunder. Data primer diperoleh melalui wawancara dengan masyarakat sampel dengan menggunakan daftar pertanyaan (quisioner) yang telah dipersiapkan terlebih dahulu. Hasil Penelitian menunjukkan Terjadinya turun naik fluktuasi harga cabai rawit secara signifikan di Pasar Padang Bulan pada periode. Mei Agustus 2022
Co-Authors Lisdayani, Lisdayani Nining Susilawati Sari, Putri Mustika Tina Herianty Masitah