Paper ID: 42

GROWTH AND YIELD OF TOMATO PLANTS (Licopersicum Esculentu, Mill.) GROWN IN SOIL MEDIA CONTAINING SEVERAL DOSES OF INORGANIC FERTILIZERS AND SPRAYED WITH BROWN ALGAE EXTRACTS

Authorship

Sunarpi¹, Aluh Nikmatullah², Anggit L. Sunarwidhi³, Yogi Ambana¹, Bq Tri Khairina Ilhami¹, Sri Widyastuti⁴, Ari Hernawan⁵, and Eka S. Prasedya¹*

¹Bioscience and Biotechnology Research Center FMIPA, The University of Mataram, Jl. Majapahit 62 Mataram Indonesia 83125

²Faculty of Agriculture, The University of Mataram, Jl. Pendidikan 37 Mataram Indonesia 83125

³Pharmacy Study Programe, Faculty of Medicine, The University of Mataram, Jl. Pendidikan 37 Mataram Indonesia 83125

⁴Faculty of Food Technology and Agroindustry, The University of Mataram, Jl. Majapahit 62 Mataram Indonesia 83125

⁵Informatic Study Programe, Faculty og Engineering, The University of Mataram, Jl. Majapahit 62 Mataram Indonesia 83125

ekajp@yahoo.com

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Abstract

The exessive use of inorganic fertiliers in horticulture plant production, increases production cost, reduces soil fertility and harm environment. On the other hand, demand for organic horticultural products in makert is increase recently. Therefore, the effort to find out organic stimulant to induces absorbtion of essential elements, growth and production of horticultural plants in low dose of inorganic fertilizers in soil media, is very important. This article reports growth and yield of tomato plants grown in soil media containing several doses of inorganic fertilizers and sprayed with Lombok brown algae extracts. Tomato plants were grown in soil media containing 0, 50, or 100% dose of NPK. Then, the plants we sprayed with or without 10% of Sargassum crassifolium, Sargassum cristaefolium, Sargassum aquifolium or Turbinaria murayana liquid extract. Each extract containing different phytohormones influenced similar effect of essential elements, growth and yield of tomato plants. However, the effect of algae extract depend on dose of NPK in soil media. Essensial element absorption, growth and yield were increaesed in the plants grown in media containing 50% NPK sprayed with Lombok brown algae extract. This increase was not significant different compared with the plants grown in media containing 100% NPK sprayed with Lombok brown algae extract. This indicates that lombok brown algae extracts could reduce application dose of NPK into 50% in tomato production, eliminate enviromental hazard and increase farmers income.

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