Uwi plants (Dioscorea sp.) as one of the types of tuber plants have the potential to support food diversity and food security in the future because it is very tolerant to be planted on dry land with a huge potential in Indonesia. The research aims to obtain a variety of diversified foods based on uwi plants. The research method used a completely randomized design laboratory scale consisting of six treatments repeated three times. These factors are the various colors of tubers used as research material including dark yellow (orange), yellow, murky white, white, purple and purple spurt. Observations include texture, elasticity, aroma, colour and taste through organoleptic tests. Instant noodles and wet noodles are used as a comparison. The study was conducted in the Agronomy Laboratory of the Faculty of Agriculture, Merdeka University, Madiun, from October to December 2018. The results showed that compared to conventional noodles as a control, the appearance of colour, taste, texture and aroma of noodles after being cooked was not much different. Whereas seen from the elasticity of uwi noodles has a lower elasticity. The difference is also in the appearance of raw dried noodles, the color and aroma are still inferior to dry noodles and instant noodles. Thus, uwi flour is potential to be developed as a food ingredient, considering that uwi carbohydrates have a low glycemic index.

The Yam (Dioscorea alata L.) as one of the varieties of the “uwi” plant has the potential to support food diversity and food security in the future. This plant is very tolerant to be planted on dry land which in Indonesia is abundant even in the world. The purpose of this study was to obtain alternative types of non-rice food from Uwi, starting with the identification of the variation and multilocation yield test to see the adaptation of each accession were obtained at various upland agro-system, Cluster analysis on plant diversity based on tuber morphological properties obtained 13 groups with 80% similarity level. While the results of adaptation tests indicate that Yam generally can adapt to various agro-ecological, but only a few accession can grow well under teak stands, especially those with large trunks and tubers. The best yield is in the upland of highlands of the Ponorogo region, followed by the lowlands of Madiun and the lowest under teak stands. However, certain types can adapt to a broad spectrum of agroecology.

Optimal use of dry land is very important to get serious attention because in general dry land has lower productivity than a wetland. This study aims to analyze farming on dry land with the application of successive model cultivation. The research was carried out from March 2021 - June 2021. The study was carried out by collecting primary data from surveys/interviews, and questionnaire. Secondary data was obtained by literature review and information from related agencies. Farming business analysis uses an input-output economic approach with the B/C Ratio method. The results showed that the successive planting model showed high efficiency. The input cost for successive cultivation during the growing season is Rp. 30,187,500, and the income from the marketed production is Rp. 72,715,000.00. The economic analysis of successive farming in one period of planting cassava, corn and chili has a B/C Ratio value of 2.4, meaning that this business is feasible.

communities in using natural resource areas. This study aims to determine the advantages of the agroforestry system, which is a mixture of albizia and mountain rice.  The agroforestry system gave the best growth of albizia  after three years.  The mean Annual Increment diameter and height of 3-year-old albizia plants in agroforestry systems were 14.02 cm and 7.19 m, respectively. The agroforestry system is also believed to reduce the number of forest damage because local people who originally stole forest wood have begun to be diverted to more productive planting activities with an intensification pattern. The involvement of local communities in business activities based on natural resource management in various forms is part of the concept of corporate social responsibility. The agroforestry system is superior to the intensive monoculture pattern because it can absorb more labor and increase the income of local communities, creating cooperation and togetherness between companies. Furthermore, an agroforestry system can reduce the number of forest and land fires because local communities, as arsonists, will help protect their land and crops.

Indonesia is very well known for its genetic diversity of potential tubers plants for alternative and functional food sources. ‘Uwi’ (Dioscorea alata Linn.) as one of the tuber’s plants needs to get attention, so there is no genetic erosion or even extinction. Seeing the high diversity of agro-climates and the high genetic diversity of ‘uwi’ plants, it is necessary to mapping and identify the suitability of the ‘uwi’ plant in line with its agro-climate character. The study aims to identify specific local varieties and the distribution of other types with broad adaptability. The analysis using the similarity interval function on the NTSys program showed that of the 47 accessions tested at 70 % similarity level there were four groups scattered in four different agro-climates. The first group enters climate types C2, C3 and B2; the second group enters C2; the third group enters C2 and C3; all fourth enter C2, C3, D3. Found three specific accession only in type C2 and C3 and most of the ‘uwi’ plants have distribution in all types of climates, showing broad adaptability and potential to be developed without high technology. The colours, shapes, flavours, and feathers of the tubers are the main differentiators in existing diversity.