<p>Production of elephant grass (Pennisetum purpureum) would be better if fertilized with the proper doses and appropriate. This study aimed to determine the production of fresh matter, dry matter, ratio of grass stems and leaves, dry matter and organic matter of elephant grass given fertilizer N, P and K with the doses of 0%, 50% and 100% at defoliation at 45th day. This study used an experimental method of randomized block design experiment consisted of 5 and 3 treatments<br />groups, so there were 15 experimental units. The treatments used were: Treatment 1 (control/not fertilizer), Treatment 2 (100 kg Urea/ha; 50 kg TSP/ha; 50 kg KCl/ha) and Treatment 3 (200 kg Urea/ha, 100 kg TSP/ha: 100 kg KCl/ha). The results showed that the doses of fertilization treatments did not significantly (P≥ 0,05) affect the fresh matter, dry matter, ratio of grass stems:leaves, dry matter and organic matter value of elephant grass at the first harvest aged 45th day. Treatment 2 and 3 increased forage the fresh matter production by 29.86% and 28.51%, respectively, while production of dry matter by 28.85% and 30.77% compared to treatment 1 (control). The ratio of grass stems and leaves varied between 59.1 - 61.26%:38,7 - 40, 9%. Organic matter content tended to increase with increasing doses of N, P and K fertilizer.<br />Key words : elephant grass production, N, P, and K fertilizer, fertilizer doses</p>

Red fruit (Pandanus conoideus Lamk.) is an endemic plant of Papua containing active components (carotenoids and tocopherols) as antioxidants and potential as a functional food. Until now, red fruit is only used for produce oil, while the information on the flesh of the fruit for raw materials of various food products is still limited, such as the chemical content, active components, and stability. The objectives of this study were to determine the nutritional composition and active components of red fruit puree and evaluate the stability of red fruit puree during storage. The puree of the red fruit was packed in a glass bottle and stored at room temperature (30±2°C) for 60 days to tested their quality stabilities. Parameters of color, aroma, taste, emulsion stability, viscosity, total dissolved solids, and acidity were observed on days 0, 10, 20, 30, 40, and 60 during storage. While total carotenoids were observed on days 0, 20, 40, and 60. The results showed that the nutritional content of red fruit puree in 100 g of dry weight included water content of 55.8%, ash content of 2.22%, fat content of 67.39%, protein content of 7.84%, and carbohydrate content of 22.56 %. Whereas, the active compounds, namely total carotenoids of 2003 ppm, β-carotenoids of 19 ppm, total tocopherol of 502 ppm, and -tocopherol of 371 ppm. During 60 days of storage, the color, aroma, taste, emulsion stability, total dissolved solids, and pH of red fruit puree were relatively stable. However, the viscosity was stable until day 40 and total carotenoids tended to decrease. This puree contains high carotenoids and tocopherols, so it has the potential as a functional food that is good for health. Keywords: carotenoid, emulsion, functional food, tocopherol

Farmers in Prafi District often experience problems with the availability of inorganic fertilizers, so it is necessary to provide organic fertilizer. The objectives were (1) to provide insight into the role of environmentally friendly fertilizers for soil and plants; (2) to transfer knowledge and technology for composting based on rice straw waste; (3) to assist farmers in Prafi District, in overcoming the problem of scarcity and high prices of fertilizers.  This training was held in Aimasi Village, Prafi District, which was attended by 24 members of Harapan Makmur group and Petani Peternak Terpadu Sebelas group.  The training included preparation of materials, counseling, and practice, application of compost to plants, and evaluation. The results of the activity showed that the participants gave a very good response to the introduction of composting technology made from a mixture of rice straw and cow feces.  Farmers were able to make compost, so there was no need to buy fertilizers used for planting vegetables and fruits.  Moisture content, organic matter, C-total, and N-total of rice straw-based compost were within the criteria of SNI compost. It was concluded that most of the farmers had understood the material provided and had been able to independently make compost with good quality.