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Journal : Gontor AGROTECH Science Journal

PEMANFAATAN SERESAH DAUN BAMBU (Dendrocalamus asper) SEBAGAI BIOHERBISIDA PENGENDALI GULMA YANG RAMAH LINGKUNGAN Lutfy Ditya Cahyanti
Gontor AGROTECH Science Journal Vol 2, No 1 (2015): December 2015
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v2i1.293

Abstract

Uncontrolled weed growth in the early stages of crop establishment, can decrease final crop yield. Phytochemical compounds from bamboo’s (Dendrocalamus sasper) leaves known as flavonoids, phenolic and coumarin that inhibit the growth and development of weeds. The objective of this study was to utilizing bamboo’s leaves litter as bioherbicide for sustainable agricultural system. Weedy area used for observation of the effectiveness solution of bamboo’s leaves litter as bioherbicide is 1 m², first area for solution of bamboo’s leaves litter 10%, the second area for solution of bamboo’s leaves litter 5% and third plot only distilled water as a control treatment. Weeds SDR observations was done before spraying and 7 days after spraying bamboo’s leaves litter. The selected plot is a plot with diverse species of weeds. Observations SDR weeds to determine the level of effectiveness of a solution of bamboo’s leaf litter, was conducted used quadrant plots Weed species that dominated on our plot are Mikania micrantha, Eleusine indica, Cyperus rotundus, Cynodon stolon, Cynodon dactylon, Axonopus compressus dan Sanchus arvensis. Solution of bamboo’s leaves litter as bioherbicide are only capable controlled bermuda grass (Cynodon dactylon), both at a dose of 5 % and 10 %. For other species, solution of bamboo’s leaves litter did not work at
POTENSI ALELOPAT DAUN PINUS (Pinus spp.) SEBAGAI BIOHERBISIDA PRA TUMBUH PADA GULMA KROKOT (Portulaca oleracea) Lutfy Ditya Cahyanti; Titin Sumarni; Eko Widaryanto
Gontor AGROTECH Science Journal Vol 1, No 2 (2015): Juni 2015
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v1i2.262

Abstract

The aim of this experiment was to study the effectof pine leaf as allelophaty on purslane germination. Theexperiment were conducted at screen house Departmentof Biology, Faculty of Mathematics and Science, BrawijayaUniversity. The research is experimental design by nonfactorial Completely Randomized Blok Design, with threereplications, consisted of eleven levels. Purslane seeds sprout with control treatment, signifi cantly different from seedssprout ability in treatment solution leaves Pinus merkusii 2000ppm, and solution leaves of P. longaeva 2000 ppm. The resultshowed that 2000 ppm of P. merkusii extraction signifi cantlysuppressed 46% of purslane germination whereas 2000 ppmPinus longeava extraction signifi cantly suppressed of 41%campared to without any treatments (control).
PENGARUH APLIKASI BORON TERHADAP HASIL BIJI BOTANI BERBAGAI KULTIVAR BAWANG MERAH DI DATARAN RENDAH alfu laila; Lutfy Ditya Cahyanti
Gontor AGROTECH Science Journal Vol 8, No 1 (2022): June 2022
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v8i1.5093

Abstract

Salah satu cara peningkatan produksi bawang merah adalah penggunaan benih biji botani atau true shallot seed (TSS). Tujuan dari penelitian ini adalah mengetahui pengaruh pemberian pupuk Boron terhadap pembungaan dan hasil biji bawang merah pada berbagai kultivar bawang merah di dataran rendah. Penelitian dilaksanakan selama bulan Juli - Oktober 2017 di Kebun Agroteknologi, Universitas Darussalam Gontor, Ponorogo, Jawa Timur. Penelitian menggunakan Rancangan Acak Kelompok Lengkap faktorial dengan 3 blok sebagai ulangan. Faktor pertama adalah dosis Boron sedangkan faktor kedua adalah kultivar. Faktor pertama terdiri dari: tanpa pemberian Boron; aplikasi Boron dengan dosis 1.5 kg/ha; 3 kg/ha; dan 4.5 kg/ha. Boron yang digunakan dalam bentuk Boric acid. Faktor kedua terdiri dari kultivar Biru Lancor (K1), Bauji (K2), Thailand (K3) dan Bima Brebes (K4). Hasil penelitian menunjukkan bahwa pemberian pupuk dengan dosis Boron 3 kg/ha mampu meningkatkan persentase pembungaan berbagai kultivar. Dosis Boron yang tepat untuk kultivar Biru Lancor untuk meningkatkan pembentukan biji botani adalah 4.5 kg/ha sedangkan Bauji dan Thailand sebesar 1.5 kg/ha. Dosis terbaik kultivar Bima untuk meningkatkan pembentukan biji adalah 3 kg/ha. Bawang merah kultivar Biru Lancor, Thailand, Bauji memiliki kemampuan berbunga dan penghasil TSS di dataran rendah seperti kultivar Bima.