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All Journal Agrosains: Jurnal Penelitian Agronomi Journal of Tropical Biodiversity
Wayan Rawiniwati
Department Of Agrotechnology, Faculty Of Agriculture, Universitas Nasional, Jakarta, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Immunology & microbiology

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Studi Potensi Ubi-Ubian Spesifik Lokal dan Upaya Pengembangannya Dalam Mendukung Kemandirian Pangan di Provinsi Bengkulu Asmah Yani; Wayan Rawiniwati
Agrosains : Jurnal Penelitian Agronomi Vol 22, No 1 (2020): Agrosains : Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (128.896 KB) | DOI: 10.20961/agsjpa.v22i1.36009

Abstract

To support food resilience it is felt necessary to do an inventory of any lokal specific plant is cultivated mainly in the form of crop growers of potatoes in order to develop its potential,  because if not preserved such commodities are feared will become extinct and the community remains dependent on food rice. The objective of this research was to know the existence and distribution of potential cassava to support community food resilience in Bengkulu Province, know lokal specific cassava cultivation techniques and how much potential land can be developed to support food resilience in Bengkulu Province. This research was conducted at Regency of Rejang Lebong and Regency of Kepahiang, Province of Bengkulu from January-April 2019. The method of this research were observation approach, (interviews using questionnaires, dept interview and Focus Group Discussion (FGD). The selection of sample location research done by purposive sampling with consideration of the potential growth of the plant tubers. The result showed that in Bengkulu turned out for lokal specific crop potential was sweet potatoes. From 10 countries in Bengkulu, sweet potatoes spread across 7 districts namely Seluma, Mukomuko, Kaur, Central Bengkulu, Kepahiang, Lebong and Rejang Lebong. The potential of land that can be developed for the sweet potato cultivation based on the assumption of the  existence of land in location of research there were as many as 6,407.0 ha or 0.33% of the land area of Bengkulu province.
Agribusiness Prospect of Banana Flowers and Oyster Mushrooms as Raw Materials of Meatballs Vegetarian Farida Farida; Wayan Rawiniwati
Journal of Tropical Biodiversity Vol 1 No 3 (2021): August 2021
Publisher : Universitas Nasional Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.434 KB)

Abstract

Meatballs are one of the popular foods in Indonesia which are generally made from beef meatballs, chicken meat, and fish. However, some Indonesian people like meatballs but cannot consume meat for various reasons, one of which is nutrition and health. Therefore, the author tries to make meatballs made from banana blossoms and oyster mushrooms that can reach that community and are also healthy and nutritious. In this study, the authors determine the right formula between the flower of a banana with oyster mushrooms to get the best taste and quality. Then the authors analyzed the levels of crude fiber, water content, protein content, and organoleptic properties of vegetarian meatballs. After ensuring nutrition, the author also conducted a financial feasibility analysis for this vegetarian meatball. The author's research was conducted at Jalan Bambu Kuning National University Laboratory Center Building, South Jakarta, from December 2013 to June 2014. This research resulted in conclusions that the vegetarian meatball formula with a ratio of 40% banana blossom and 60% oyster mushroom is the best formula and meatball making business. This vegetarian can make a profit of IDR 10,560,000 per month.
The Effect of Dosage and Time of Application Potassium Fertilizer on Growth of Bidara (Ziziphus Rotundifolia) Wayan Rawiniwati; Yenisbar Yenisbar
Journal of Tropical Biodiversity Vol 3 No 2 (2023): April 2023
Publisher : Universitas Nasional Jakarta

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Abstract

This research aimed to analyze the effect of dosage and time of application and potassium fertilizer to bidara plants’ (Ziziphus rotundifolia) growth. This research was arranged by Split Plot design in a Randomized Complete Block Design (RCBD). The Factor of Potassium time of application, that were during planting, 2 weeks after planting; 4 weeks after planting; 6 weeks after planting, was as the main plot, while the potassium fertilizer dosage of (K2O) 0 kg ha-1, 60 kg ha-1, 120 kg ha-1, 180 kg ha-1 as secondary plot. The results showed that the time of application of Potassium fertilizer had an effect on the height of the best Bidara at the age of 2 week after planting. The 60 kg K2O ha-1 dosage can increase plant height from 2 week after aplication to 10 week after aplication. The applications of 4 week after planting produced in a higher number of shoots than applications at 2 or 6 week after planting. The fertilizer application at 6 weeks after planting showed the highest fresh leaf weight and dry leaf weight which were 50,631 g and 20,900 g and the lowest in application 2 weeks after planting were 24,263 g and 12,925 g. The fertilizer dosage as much as 60 kg ha-1 produced the highest dry weight which 18,069 g. Fertilizing as much as 180 kg ha-1, showed the highest root fresh weight of at 12,757 g, compared to the control (8,900 g). The Potassium application of 6 week after planting produced the longest root growth (20,500 cm) compared to other treatments.
Co-Authors Asmah Yani Farida Farida Yenisbar .