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All Journal SAINSMAT Fullerene Journal of Chemistry Oxygenius Journal Of Chemistry Education Jurnal FisTa : Fisika dan Terapannya SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Sonny Lumingkewas
Universitas Negeri Manado
Astronomy Chemistry Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Time Efficiency of Nitrogen Fertilizer Application on Growth and Production of Yellow Local Corn Anatje Lihiang; Sonny Lumingkewas
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 9 No. 2 (2020): Volume 9 Nomor 2 (September 2020)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Corn (Zea mays L) is a cereal crop that has economic value and can be developed as a main source of carbohydrates, vitamins and minerals, as well as animal feed and industrial raw materials. In North Sulawesi, many local varieties of Manado yellow maize have been developed, which are unique in that they taste sweet, have high rice yield, and are resistant to storage. However, at the farmer level, the productivity is low, around 1-2 tonnes/ha. Therefore it is necessary to conduct research to increase the growth and production of local Manado yellow maize with the appropriate application of urea fertilizer time. The results showed that maize had the highest leaf area, dry weight, leaf area index, plant growth rate, and net assimilation rate in N4 and N5 treatments, namely 3 times urea fertilizer 1/3 when planting, 1/3 plant age 15 days, and 1/3 plant age 45 HST (N4) and 1/3 when planting, 1/3 when the plants are 30 days old and 1/3 plants are 45 days old. The highest dry weight was 3.24 t ha-1 in the 3 times application of fertilizer, namely 1/3 when planted, 1/3 when the plants were 30 HST and 45 HST. Thus, the application of 3 times fertilizer application resulted in the highest growth and production of local Manado yellow corn. Further research needs to be tested at locations with different heights.
Co-Authors Ambaa, Nelce Dianty Anatje Lihiang Aprilia Novira Sodayang Chrisly Durant Djefry Tani Emma Julin Pongoh Freetje Waworuntu Hiskia Wahongan I Kadek Cenik Ilham Mahmud Joice Dorsila Susana Caroles Ketty Preity Amelia Br Situngkir Meiske Naomi Mamuaja Meytij Jeanne Rampe Pasere, Elsi