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All Journal METANA Agrovigor: Jurnal Agroekoteknologi Jurnal Agroekoteknologi Journal of Agro Complex JURNAL GALUNG TROPIKA Caraka Tani: Journal of Sustainable Agriculture JURNAL AGROHITA Jurnal Agroplasma AGROTEK: Jurnal Ilmiah Ilmu Pertanian PERTANIAN TROPIK

Didik Wisnu Widjajanto

Program Studi Agroekoteknologi, Fakultas Peternakan Dan Pertanian, Universitas Diponegoro

Author-ID : 415953

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Other

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Incubation Time of Liquid Organic Fertilizers and Doses of Nitrogen on Growth and Yield of Cherry Tomatoes (Lycopersicum esculentum) Widjajanto, Didik Wisnu; Kriswijayanto, Triyoga Budi; Sumarsono
Jurnal Online Pertanian Tropik Vol. 7 No. 2 (2020): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

ABSTRACT The aim of the experiment was to evaluate the effect of incubation time of liquid organic fertilizer and nitrogen doses on the growth and production of cherry tomatoes. The experiment was conducted at the sreen house of Department of Agriculture of Semarang City and at the Ecology and Crop Production Laboratory of the Faculty of Animal and Agricultural Sciences, Diponegoro University from May-September 2017. A completely randomized design of 3x3 factorial patterns was used throughout the experiment. The first factor consisted of the incubation time of liquid organic fertilizer 6, 12 and 18 days, respectively for I1, I2 and 13 treatments. The second factor was the doses of nitrogen that consisted of three levels 36, 72 and 180 kgN/ha as D1, D2 and D3 treatments, respectively. Observed data included plant height, fresh and dry weight of stover, harvest index, fruit production and fruit sets. Obtained data were analyzed statistically by using ANOVA and continued with the smallest significant difference test at 5%. On the basis of the experiment it may be concluded that all of LOF with different of incubation time at dose of 72 kg N/ha may be recommended for cherry tomatoes cultivation.

Performance of Odot Elephant Grass (Pennisetum purpureum cv. Mott) and Sweet Potato (Ipomoea batatas L.) Cultivated as Mixed Cropping Widjajanto, Didik Wisnu; Sumarsono, Sumarsono; Sutarno, Sutarno
Jurnal Online Pertanian Tropik Vol. 9 No. 1 (2022): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

ABSTRACT The study was aimed to evaluate the effect of spacing of Odot elephant grass (Pennisetum purpureum cv. Mott) and variety of sweet potato (Ipomoea batatas L.) on the growth and yield of these two plants in a mixed cropping system. A randomized block design in a 2 Ã— 4 factorial pattern with 3 replications was used in the study. The first factor was spacing of Odot elephant grass consisted of J1: 60 Ã— 90 cm and J2: 45 x 90 cm. The second factor was several varieties of sweet potato, namely V1: Pating-1, V2: Beta-2, V3: Kidal and V4: Papua Solossa. Parameters observed were plant height, dry matter production, crude protein and crude fiber content of Odot elephant grass, as well as production of tubers, dry matter of leaves, crude protein, crude fiber and brix content of sweet potato. The results showed that there was no significant effect of Odot elephant grass spacing on all parameters studied except plant height on the 5th week of observation. Meanwhile, there was a significant effect on all parameters observed due to the treatment of sweet potato varieties. It was concluded that Odot elephant grass may be mixed with various sweet potato varieties such as Pating-1, Beta-2, Kidal and Papua Solossa, especially if there were no pests attacking the Odot elephant grass at the beginning of its growth. Further research with a more varied spacing of Odot elephant grass spacing is highly recommended. Keywords: agricultural by-products; alternative feed; fiber; forage crops; protein ABSTRAK Penelitian bertujuan untuk mengevaluasi pengaruh jarak tanam rumput gajah Odot (Pennisetum purpureum cv. Mott) dan varietas ubi jalar (Ipomoea batatas L.) terhadap pertumbuhan dan hasil kedua tanaman pada sistem tanam campuran. Rancangan acak kelompok pola faktorial 2 Ã— 4 dengan 3 ulangan digunakan dalam penelitian. Faktor pertama adalah jarak tanam rumput gajah Odot terdiri dari J1:60 Ã— 90 cm dan J2: 45 x 90 cm. Faktor kedua adalah beberapa varietas ubi jalar yaitu V1: Pating-1, V2: Beta-2, V3: Kidal dan V4: Papua Solossa. Parameter yang diamati adalah tinggi tanaman, produksi bahan kering, kandungan protein kasar dan serat kasar rumput gajah Odot, serta produksi umbi, bahan kering daun, protein kasar, serat kasar dan kadar brix ubi jalar. Hasil penelitian menunjukkan bahwa tidak terdapat pengaruh nyata jarak tanam rumput gajah Odot terhadap semua parameter yang diteliti kecuali tinggi tanaman pada minggu ke-5 pengamatan. Terdapat pengaruh nyata pada semua parameter yang diamati akibat perlakuan varietas ubi jalar. Tidak ada pengaruh interaksi kedua perlakuan terhadap semua parameter yang diamati. Disimpulkan bahwa rumput gajah Odot dapat dicampur tanam dengan berbagai varietas ubi jalar seperti Pating-1, Beta-2, Kidal dan Papua Solossa, terutama jika tidak ada hama yang menyerang rumput gajah Odot pada awal pertumbuhannya. Penelitian lebih lanjut dengan jarak tanam rumput gajah Odot yang lebih bervariasi sangat disarankan. Kata kunci: hasil samping pertanian; pakan alternatif; protein; serat; tanaman pakan

Co-Authors Ahmad Khanafi Alama Dian Rahayu apitya muktifani Dedi Purba Dwi Retno Lukiwati Endang Dwi Purbajanti Givrael Bima Christi Heny Kusumayanti Indiarto, Gunawan Jon Andri Efendi Tumanggor Kriswijayanto, Triyoga Budi Lina Lutfiana Nutri Sri Damayanti Ratna Dwi Kartikasari S Sutarno Sri Rejeki Sumarsono Sumarsono Sumarsono Sumarsono Sumarsono Sunartadi, Difa Rosalina Susilo Budiyanto Sutarno Sutarno Sutarno Sutarno T. Honmura Yafizham Yafizham Yulia Anjani Maula

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