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All Journal Jurnal Penelitian Pertanian Terapan Jurnal Agrotek Tropika
Dad R. J. Sembodo
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Agriculture, Biological Sciences & Forestry

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Pengaruh Jenis dan Kerapatan Gulma terhadap Pertumbuhan dan Produksi Tanaman Jagung (Zea mays L.) Chintya Ayu Alvionita; Herawati Hamim; Dad R. J. Sembodo
Jurnal Penelitian Pertanian Terapan Vol 16 No 1 (2016)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.533 KB) | DOI: 10.25181/jppt.v16i1.70

Abstract

Maize production in each year tends to decrease. One reason is the weeds. Weeds is animportant issue because it can compete with the main crop that can reduce crop production.The purpose of this research to determine: (1). The effect of weeds species on the growth andproduction of maize, (2). The effect of weed density on the growth and production of maize,(3). Interaction between the type and density of weeds in influencing the growth andproduction of maize. The research was conducted in Natar, South Lampung and WeedLaboratory Faculty of Agriculture, university of Lampung from December 2014 to April2015. The treatments arranged factorial (3x5) in a strip plot design with three replications.The first factor is the species of weed that are Asystasia gangetica, Rottboelia exaltata, andCyperus rotundus. The second factor is 5 weed density that are 0, 10, 20, 40, and 80populations of weeds/m2. If the assumptions are met, the data is analyzed using ANOVA,followed by Least Significant Difference Test (LSD) 5%. The result showed that : (1).Species of weeds affects plant shoot dry weight, the weight of maize cobs, and the weight ofgrain maize but did not affect plant height, number of leaves, plant populations, cob length,cob diameter, and weighs 100 grains. (2). The density of 40 weeds/m2affects weight of 100grains, but the density of 10, 20, and 80 weeds/m2did not affect the growth and productionof maize. (3). There is no interaction between species and density of weeds in influencingthe growth and production of maize.Keyword: maize, weeds, competition
EFIKASI HERBISIDA AMINOPIRALID + GLIFOSAT TERHADAP GULMA PADA LAHAN TANAMAN KARET (Hevea brasiliensis [Muell.] Arg) MENGHASILKAN Nur Aini; Dad R. J. Sembodo; Sugiatno Sugiatno
Jurnal Agrotek Tropika Vol 2, No 3 (2014)
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (41.869 KB) | DOI: 10.23960/jat.v2i3.2067

Abstract

Penelitian bertujuan untuk mengetahui efektivitas kombinasi herbisida aminopiralid + glifosat terhadap pengendalian gulma pada lahan tanaman karet menghasilkan. Penelitian dilaksanakan di PTPN VII Unit Usaha Kedaton, Tanjung Agung, LampungSelatan dan Laboratorium Ilmu Gulma Fakultas Pertanian Universitas Lampung, Bandar lampung dari bulan Januari sampai April 2013. Penelitian terdiri atas 6 perlakuan dengan 4 ulangan, menggunakan rancangan kelompok teracak sempurna.Perlakuan terdiri atas kombinasi aminopiralid + glifosat dengan dosis 12,75 g/ha + 360 g/ha, 17,00 g/ha + 480 g/ha, 21,25 g/ha + 600 g/ha, 25,50 g/ha + 720 g/ha, penyiangan mekanis, dan kontrol (tanpa penyiangan). Homogenitas ragam data diuji dengan uji Bartlett, aditivitas data diuji dengan uji Tukey, jika asumsi terpenuhi data dianalisis ragam, dan perbedaan nilai tengah perlakuan diuji dengan uji Beda Nyata Terkecil (BNT) pada taraf 5%. Hasil penelitian menunjukkan bahwa (1) Kombinasiherbisida aminopiralid + glifosat efektif menekan pertumbuhan gulma total dan golongan rumput sampai 12 MSA, serta mampu menekan pertumbuhan gulma dominan Ottochloa nodosa pada 12 MSA dan Cyrtococcum acrescens pada 4 dan 8 MSA dan (2) Kombinasi herbisida aminopiralid + glifosat tidak efektif mengendalikan pertumbuhan gulma daun lebar dan gulma dominan Selaginella willdenowii.
Co-Authors Chintya Ayu Alvionita Herawati Hamim Salsabila, Unik Hanifah Sugiatno Sugiatno