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All Journal EUGENIA
Theffie Lientje Karamoy, Theffie Lientje
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Agriculture, Biological Sciences & Forestry

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PEMBERIAN KOMPOS PADA TANAH BEKAS TAMBANG DENGAN INDIKATOR TANAMAN SAWI (BRASSICA CHINENSIS L) Karamoy, Theffie Lientje; Kumolontang, W. J.N.; Rondonuwu, J.
EUGENIA Vol 21, No 2 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.21.2.2015.9711

Abstract

ABSTRACT   This research aimed to determine the effects of compost applications on ex-mining lands by using chinese cabbage as indicator. The experiments were conducted at the Faculty of Agriculture greenhouse and the soil and compost analysis were done at the Soil Chemistry and Fertility Laboratory for a duration of two months. The research employed a Completely Randomized Design method with 5 treatments repeated 3 times to get 15 experimental units. The analysis on ex-mining soil revealed that it contained only trace amounts of soil nutrients N, P, and K. The laboratory analysis on the compost sample resulted in a C/N ratio of 11.87 which suggested that the compost was mature and ready to be used. The Analysis of Variance on research data showed that compost applications did not affect plant height between treatments at each weekly observation, and similarly did not affect leaf quantity and fresh weight at harvest time.  However, the research found that the compost applications tended to improve plant height, leaf quantity, and fresh weight of plants at harvest time.  The minimal effect of compost applications between treatments suggested that the plants did not utilized the nutrients supplied by the compost in their early stages of development.  Moreover, it was also suspected that the compost applications had not been sufficient in supplying the soil nutrients needed by the plants to ensure proper growth which ultimately affected the fresh weight of the plants at harvest time. Keywords: compost, ex-mining land
APLIKASI BEBERAPA PUPUK ORAGANIK PADA TANAH MARJINAL DENGAN INDIKATOR TANAMAN BAYAM DI KOTA MANADO Karamoy, Theffie Lientje; Kumolontang, W. J. N.; Kaunang, Djoni
EUGENIA Vol 25, No 1 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.1.2019.31397

Abstract

The study aims to determine the effect of providing various types of organic fertilizer on the growth of spinach on marginal soils. Held in the Faculty of Agriculture greenhouse for pot experiments. Soil analysis, manure and compost are done in the Laboratory. Research using the RAL method A = Control B = Chicken manure 30 tons / ha, C = Cow Manure 30 tons / ha, D = Pig manure 30 tons / ha, E = Goat Manure 30 tons / ha and F = Compost 30 tons / ha per treatment added with sand. The study was conducted with 3 replications obtained 18 experimental pots. The data obtained were analyzed by analysis of variance and if there was a real influence continued with the LSD test of 5%. The results showed, the provision of various types of organic fertilizer on marginal soils significantly affected the availability of nutrients needed by plants in the growth and production of spinach plants in this case plant height, number of leaves, fresh weight of plants.
Co-Authors Djoni Kaunang J. Rondonuwu, J. Kumolontang, W. J. N. W. J.N. Kumolontang, W. J.N.