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Sumatera utara
INDONESIA
AGROEKOTEKNOLOGI
Published by Universitas Sumatera Utara
ISSN : 23376597     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal AGROEKOTEKNOLOGI merupakan jurnal ilmiah yang diterbitkan secara online berisikan hasil-hasil penelitian tentang hama dan penyakit tumbuhan, agronomi, pemuliaan tanaman dan ilmu tanah
Arjuna Subject : -
Articles 52 Documents
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Search results for , issue "Vol 1, No 3 (2013)" : 52 Documents clear
PENGARUH BIOMASSA AZOLLA TERHADAP STATUS LOGAM BERAT TIMBAL (Pb) PADA TANAH Muhammad Abror; Teuku Sabrina; Benny Hidayat
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.762 KB) | DOI: 10.32734/jaet.v1i3.3185

Abstract

Research on title the effect of  Pb-Polluted azolla biomass on polluted on lead heavy metal status at polluted and unpolluted soil with Pb aimed to evaluate the potency of Pb-polluted azolla biomass on the availability of Pb in soil. The experiment design was factorial randomized block design with 2 factors and 3 replications. First factor was Pb-polluted azolla biomass with 3 treatments 0 g/kg, 15 g/kg and 30g/kg, second factor was Pb application with 3 treatments 0 ppm/kg, 150 ppm/kg, and 300 ppm/kg. The parameters was soil pH, organic matter. Pb total and available Pb from 1 week and 2 weeks after applying Pb-polluted azolla. The result showed that application of Pb-polluted azolla biomass increased 20% and 30% the availability of Pb after 1 week  compare to control for Pb-polluted azolla treatment 15 g/kg and 30 g/kg respectively. Application of Pb-polluted azolla biomass did not significantly affected the soil pH and increasing soil organic matter. Meanwhile application of Pb polluted azolla biomass on unpolluted soil increased Pb-available about 60% and 85% compare to control for azolla biomass applying 15 g/kg and 30 g/kg, and also increasing soil organic matter content. In the second week, Pb-polluted azolla biomass increased Pb availability in unpolluted soil around 75% and 82% for azolla treatment 15 g/kg and 30 g/kg respectively. Meanwhile in the treatment applying 300 ppm Pb, application of Pb-polluted azolla decreased 8% Pb of available. In general, the effect of application Pb-polluted of azolla biomass increased the amount of Pb available and soil organic matter in the soil and pH decreased with time.
PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS KEDELAI ( Glycine max L.Merrill ) PADA BERBAGAI TINGKAT PENAUNGAN TAHAP KEDUA Muhammad Iqbal; Lisa Mawarni; Charloq Charloq
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.83 KB) | DOI: 10.32734/jaet.v1i3.3186

Abstract

This research aims to know the growth and production various types of soy beans in the second stage various levels of shade. This research was done on Faculty of Agriculture field Universitas Sumatera Utara. On July until October 2011 in Medan. This research was used split plot design  factorial  methods with two factors, shade (0%, 20%, 40%, 60%) as the main plot and varieties (Anjasmoro, Pangrango, Tanggamus, Nanti) as subplot. The result showed that the shades to significant effect against plant height, the number of branches on the main stem, number of beans per plant, number of seeds per plant, production per plot, weight of 100 seeds. Varieties  factor gave significant  effect to percentage of germination, number of seeds per plant, weight of 100 seeds. interaction shading and varieties was significant effect to percentage of germination. ________________________________________________________________________________ Key words: shade, varieties,and  soybean

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