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All Journal Jurnal Agro JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Kultivasi Buletin Palma
Suwitono, Bayu
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Agriculture, Biological Sciences & Forestry

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Implementasi Teknologi Peningkatan Produktivitas Lahan Kering Di Bawah Tegakan Kelapa di Maluku Utara [Implementation Technology to Productivity Increase at Dryland under Coconut in North Maluku] Hidayat, Yayat; Lala, Fredy; Suwitono, Bayu; Aji, Himawan B; B, Bram
Buletin Palma Vol 21, No 1 (2020): Juni 2020
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bp.v21n1.2020.11-21

Abstract

Coconut land in North Maluku is potential to implement polyculture farming. Corn and soybeans are food commodities that can be used as intercrops among coconut stands to increase farmers' income. The purpose of this study was to determine the feasibility of land productivity and farming of polycarbonate systems under coconut stands as well as farmers' preferences for cultivation technology innovation. The research was carried out from May to October 2018 on coconut land owned by farmers in Bumirestu Village, East Halmahera Regency, North Maluku. The study applied integrated crop management (PTT) of corn and soybeans under coconut stands using VUB and fertilizer treatment. The analysis was used to answer the objectives, namely the calculation of land equality ratio (LER), RC ratio, and farmers' perceptions. The results showed that coconut-corn intercropping increased 92% of the efficiency of land productivity with a value of LER 1.92. Intercropping of soybeans increases 76% of land productivity efficiency with a LER value of 1.76. The increase in profits of coconut farming from the intercropping pattern of coconut - corn is Rp. 7,495,800/harvest with R/C 1.89 while from the intercropping pattern of coconut - soybean is Rp. 4,402,000/harvest with an R/C value of 1.55. Farmers' perceptions of technological innovations overlapping corn-coconut and coconut-soybean showed a positive perception. Farmers assume that technological innovations in intercropping corn-soybeans under coconut stands are beneficial, in accordance with the values and needs of the community, have low complexity, are easy to implement, and the results are significant.ABSTRAKLahan kering kelapa di Maluku Utara berpotensi untuk penerapan usahatani polikultur. Jagung dan kedelai merupakan komoditas pangan yang bisa dimanfaatkan sebagai tanaman sela di antara tegakan kelapa untuk meningkatkan pendapatan petani. Tujuan penelitian adalah untuk mengetahui kelayakan produktivitas lahan dan usahatani sistem polikutur di bawah tegakan kelapa serta preferensi petani terhadap inovasi teknologi. Penelitian dilaksanakan dari bulan Mei-Oktober Tahun 2018 di lahan kelapa milik petani di Desa Bumirestu, Kabupaten Halmahera Timur, Maluku Utara. Penelitian menerapkan pengelolaan tanaman terpadu (PTT) jagung dan kedelai di bawah tegakan kelapa dengan menggunakan varietas unggul baru (VUB) dan perlakuan pupuk. Analisis yang digunakan untuk menjawab tujuan yaitu perhitungan nisbah kesetaraan lahan (NKL), RC ratio, dan persepsi petani. Hasil penelitian menunjukkan tumpang sari kelapa-jagung meningkatkan 92% efisiensi produktivitas lahan dengan nilai NKL 1,92. Tumpang sari kelapa-kedelai meningkatkan 76% efisiensi produktivitas lahan dengan nilai NKL 1,76. Peningkatan keuntungan usahatani kelapa dari pola tumpang sari kelapa – jagung sebesar Rp. 7.495.800/panen dengan R/C 1,89 sedangkan dari pola tumpang sari kelapa – kedelai sebesar Rp. 4.402.000/panen dengan nilai R/C 1,55. Persepsi petani terhadap inovasi teknologi tumpang sari jagung-kelapa dan kedelai-kelapa menunjukkan persepsi yang positif. Petani mengganggap bahwa inovasi teknologi tumpang sari jagung-kedelai di bawah tegakan kelapa menguntungkan, sesuai dengan nilai dan kebutuhan masyarakat, memiliki kerumitan yang rendah, mudah diterapkan, dan hasilnya signifikan
Response of four local cassava accessions to bio-mulch application time Suwitono, Bayu; Chozin, Muhamad Achmad; Guntoro, Dwi; Suwarto, Suwarto
Kultivasi Vol 22, No 2 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i2.44256

Abstract

Cassava (Manihot esculenta Crantz) is widely planted on marginal land with low soil fertility. During the initial growth phase, cassava often loses competition against weeds. Legume cover crops are widely used to increase soil fertility, prevent erosion, and suppress weeds. This study aimed to determine the effect of Arachis pintoi bio-mulch application time on the growth and yield of cassava. This study was conducted using a factorial randomized block design. The first factor was four cassava accessions: Ketan Malang, Genjah Bayam, IR Jonggol, and Mangu. The second factor was six levels of bio-mulch planting time: manual weeding (without bio-mulch applications), bio-mulch planting at the same time as cassava planting, and four, eight, and twelve weeks before cassava planting. The observations included plant height, stem diameter, number of tubers, tuber weight, tuber length, plant biomass, dry matter, and productivity. The results showed that all cassava accessions responded similarly to the planting time of A. pintoi bio-mulch. Different bio-mulch application time was insignificant in the cassava growth, except for the number of tubers and tuber diameter. The twelve weeks before cassava planting tends to reduce the results of cassava accessions.Keywords: Arachis pintoi, cover crop, dry land, growth, yield
Identification of bird pests on several sorghum genotypes during the rainy season, in Gunung Kidul, Indonesia Mugiasih, Ani; Suwitono, Bayu; Gunawan, Achmad; Widyayanti, Setyorini; Muazam, Arif
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 25 No. 2 (2025): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.225208-217

Abstract

Birds are among the most significant vertebrate pests affecting sorghum crops worldwide, particularly in community farming systems. Their attacks can lead to substantial yield losses, especially during the grain ripening stage. This study aimed to identify the species, number of individuals, attack frequency, extent of crop damage, and control efforts related to bird pests in sorghum cultivation. The research was conducted from December 2022 to February 2023 in Karangmojo Village, Gunungkidul Regency, Yogyakarta, Indonesia. Six sorghum genotypes were planted: bioguma (V1), plonco (V3), samurai (V4), kawali (V6), hitam wareng (V8), and ketan merah (V9). However, observations were focused on bioguma and plonco, which experienced the most bird attacks. Three seed-eating bird species were identified: Geopelia striata (kutut, 156 individuals), Lonchura leucogastroides (bondol jawa or emprit, 375 individuals), and Spilopelia chinensis (derkuku or tekukur, 329 individuals). The peak bird activity occurred in the morning, with 47 attack events recorded in bioguma and 35 in plonco. The average crop damage reached 1.26% in bioguma and 1.24% in plonco, resulting in estimated yield losses of Rp. 922,140.00 and Rp. 750,360.00 per ha, respectively. Control measures employed by farmers included the use of perforated plastic hoods and safety nets, though their effectiveness was limited.
Population of vector and tungro disease incidence at dosage of nitrogen fertilizer in rice field Gunawan, Achmad; Purwono; Lubis, Iskandar; Widiarta, I Nyoman; Suwitono, Bayu
Jurnal AGRO Vol. 12 No. 1 (2025)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/j.agro.45232

Abstract

One of the biotic threats that can reduce rice yield is tungro disease. This disease is spread with green leafhopper (Nephotettix virescens) vector. The population density of leafhoppers is one of the factors contributing to the increased incidence of tungro. Excessive nitrogen used in crop cultivation, especially rice, has been known to impact the population dynamics of insect pests. This study aims to determine the population development of green leafhoppers at different nitrogen doses. The study was conducted at the Muara Experimental Field, Bogor. The experimental treatment used three rice varieties representing susceptible varieties, resistant to green leafhoppers and resistant to tungro virus (Ciherang, IR64 and Inpari 36 Lanrang) and four levels of fertilization doses (without additional urea, Urea 250 kg ha-1, 350 kg ha-1 and 500 kg ha-1). The experiment used Split Plot design with three replication. The insect population in the field was found at the beginning of the observation and the peak of insect population density occurred at 6 WAP observationsVariety has a significant effect on insect vector population density and plant growth and yield in the field. The population density of green leafhoppers was higher in the Ciherang and IR 64 varieties than in the Inpari 36 Lanrang variety. Fertilization doses had no significant effect on the population of green leafhopper insects in the field except in the nymph phase in fertilization without the addition of urea and had no effect on growth and yield except on the number of tillers. The combination of resistant varieties and fertilization without the addition of urea reduced the population density of green.   ABSTRAK Cekaman biotik yang dapat menurunkan hasil padi salah satunya penyakit tungro. Penyakit ini disebarkan oleh vektor wereng hijau (Nephotettix virescens). Kepadatan populasi wereng menjadi salah satu faktor penyebab meningkatnya keberadaan penyakit tungro. Penggunaan nitrogen yang berlebihan dalam budidaya tanaman, terutama padi, telah diketahui berdampak pada dinamika populasi serangga hama. Penelitian ini bertujuan untuk mengetahui perkembangan populasi wereng hijau pada pemberian dosis nitrogen berbeda.Penelitian dilakukan di Kebun Percobaan Muara, Bogor. Perlakuan percobaan mengunakan tiga varietas padi yang mewakili varietas rentan, tahan wereng hijau dan tahan virus tungro (Ciherang, IR64 dan Inpari 36 Lanrang) dan lima taraf dosis pemupukan (tanpa tambahan pupuk urea, Pupuk Urea 250 kg ha-1, 300 kg ha-1 dan 500 kg ha-1). Percobaan mengunakan rancanngan Split Plot dalam RAK dengan tiga kali ulangan. Populasi serangga di lapangan ditemukan diawal pengamatan dan puncak kepadatan populasi serangga terjadi pada pengamatan 6 MST. Varietas berpengaruh nyata terhadap kepadatan populasi serangga vektor, pertumbuhan dan hasil tanaman di lapangan. Kepadatan populasi wereng hijau lebih tinggi pada pertanaman varietas Ciherang dan IR 64 dibandingkan pada varietas Inpari 36 Lanrang. Dosis pemupukan tidak berpengaruh nyata terhadap populasi serangga wereng hijau di lapangan kecuali pada fase nimfa pada pemupukan tanpa penambahan urea dan tidak berpengaruh terhadap pertumbuhan dan hasil kecuali pada jumlah anakan. Kombinasi varietas tahan dan pemupukan tanpa penambahan urea mengurangi kepadatan populasi wereng hijau menyebarkan virus tungro.   Kata kunci: Populasi, pupuk nitrogen, wereng hijau
Co-Authors Aji, Himawan B B, Bram Dwi Guntoro Fredy Lala Gunawan, Achmad Hidayat, Yayat I Nyoman Widiarta Iskandar Lubis M A Chozin Muazam, Arif Mugiasih, Ani Purwono Setyorini Widyayanti, Setyorini Suwarto Suwarto