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Erwin Masrul
Universitas Sumatera Utara

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PENGARUH WAKTU PEMBERIAN DAN KOMPOSISI COMPOST TEA TANDAN KOSONG KELAPA SAWIT DIPERKAYA Azotobacter TERHADAP PRODUKSI SAWI Jannerson Munthe; Erwin Masrul; T. Sabrina
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.129 KB) | DOI: 10.32734/jaet.v2i2.7163

Abstract

The demand on organic agriculture products are increasingly with the increasing awareness onhealthy and nutritious foods, and also on protecting environment. In addition, the increasingdemand on organic food caused increasing the demand on organic fertilizers. Compost tea is analternative source of nutrients for plant in order to reduce chemical fertilizers. The aim of this studywas to determine the effect of compost tea application time and composition enriched oil palmempty fruit bunches Azotobacter in increasing the production of mustard. The study used arandomized block design (RBD) factorial consist of 2 factors and 3 replications. The first factor wasthe application time consist of 2 treatments (3 days and 6 days) and the second factor was thecompost tea formula consists of 5 treatments (150 g oil-palm empty fruit bunch compost+ 5000 mLof water, 150 g oil-palm empty fruit bunch compost + 1500 mL of coconut water + 3500 mL ofwater with 2% molasse, 300 g oil-palm empty fruit bunch compost + 3000 mL of coconut water +2000 mL of water with 2% molasse, 150 g oil-palm empty fruit bunch compost + water + 1500mL of coconut water +3500 mL water with 4% molasse and 300 g oil-palm empty fruit bunchcompost + 3000 mL of coconut water + 2000 mL water with molasse 4%). Results showed that theformulation compost tea 300 g oil-palm empty fruit bunch compost with 3000 mL coconut water +2000 mL water + 4% molasse gave the highest mustard production (based on wet weight), dryweight, plant height, leaf width and N uptake by plant and the chlorophyll content in mustard leaf.The best of application time was 6 days which gave the highest yield based on the wet weight, dryweight, plant height, leaf width, and N uptake by mustard. The certain formula of compost tea didnot had to be aplied on certain interval, either every 3 day nor 6 day.Keywords: Oil-Palm Empty Fruit Bunch Compost, compost tea, mustard, coconut water, molasse
PENGARUH BERBAGAI DOSIS DAN CARA APLIKASI PUPUK UREA TERHADAP PRODUKSI TANAMAN SAWI (Brassica juncea L.) PADA TANAH INCEPTISOL MARELAN Srie Elvhi Febri Yanti; Erwin Masrul; Hamidah Hannum
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.056 KB) | DOI: 10.32734/jaet.v2i2.7165

Abstract

The application of urea fertilizer which excessive dosage caused the damaged of plant growth. Theobjective of this research was study the accurate dosage and method in application of Urea fertilizerin increasing plant growth of green mustard. The research was conducted in Agriculture Faculty,University of Sumatera Utara, Medan. This research used factorial blocky randomized design with3 block and 2 factors. The dosage of Urea ferlizer (N) were consisted of four kind are : U0 (0 ppmN), U1 (100 ppm N), U2 ( 200 ppm N), and U3 (300 ppm N) and the application method consistedof four levels, namely : D1 (spread) and D2 (mixed). The result of this research showed that somedosages and the way to apply the urea fertilizer did not effect the growth of mustard but effected theproduction of mustard. Highest production was dosage 200 ppm. The application of urea was mixedinto soil better then spread in increase the productivity of mustard. If urea mixed into soil, theoptimum dosages was 117 ppm and if urea spread, the optimum dosages was 190 ppm.Keywords: green mustard, mixed, spread, and urea.