Browsing by Author "Prasetyo, Tisna P."
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- Drip irrigation: Will it increase yield in traditional vegetable production system?Susila, Anas D.; Kartika, Juang Gema; Prasetyo, Tisna P.; Palada, Manuel C. (2008)In the rain-fed production system area, vegetables normally can be grown in wet season (> 200 mm/month) between December and April. During dry season (
- Drip irrigation: Will it increase yield in traditional vegetable production system?Susila, Anas D.; Prasetyo, Tisna P. (2008)In the rain-fed production system area, vegetables normally can be grown on wet season (>200 mm/month) between December - April. During dry season ( Drip irrigation systems have the highest potential water application efficiency of the irrigation system used in commercial vegetables production. Field studies have shown a significant decrease in irrigation requirements of tomatoes with the use of drip irrigation system and compared to sub-irrigation system. Marketable yield, fruit size, and fruit quality were comparable and some cases better with the use of drip irrigation than sub-irrigation (Pitts and Clark, 1991). Drip irrigation is a tool to reduce water use, increase fertilizer efficiency, and improve profit, while simultaneously reducing the potential risk to the environment due to enrichment of surface and ground water (Hochmuth, 1992). This research was conducted to evaluate the effect of Low Cost Drip Irrigation System on the yield of Amaranth (Amaranthus sp), Kangkong (Ipomoea reptans), Yard Long Bean (Vigna unguilata), Green Bean (Phaseolus vulgaris), and Katuk (Sauropus androgenous) growth and yield during wet season.
- Environmental friendliness fertilizer recommendation: Phosphorous calibration for yard long bean production in ultisolSusila, Anas D.; Kartika, Juang Gema; Prasetyo, Tisna P.; Palada, Manuel C. (2008)The basic purpose of soil fertility evaluation is to provide information on the nutrient status of the soil and predict the relative response to added nutrient. The Crop Nutrient Requirement (CNR) values are those amounts of nutrients needed to produce optimum, economic yields from a fertilization standpoint. It is important to remember that these nutrient amounts are supplied to the crop from both soil and fertilizer. The amounts are applied as fertilizer only when a properly calibrated soil test indicates very small extractable amounts of these nutrients to be present in the soil.
- Fertilizer Recommendation: Correlation and Calibration Study of Soil P Test for Yard Long Bean (Vigna unguilata L) on Ultisols in Nanggung-BogorSusila, Anas D.; Kartika, Juang Gema; Prasetyo, Tisna P.; Palada, Manuel C. (2010)Proper fertilization of a crop is knowing the crop nutrient requirement for production of maximum yield and the potential level of nutrient availability from the soil. In addition to yield obtained, quality of the commodity is an important factor of profit and shelf-life for high-value crops. Nitrogen, phosphorous, and potassium availability are the most limiting factors for maximum growth and yield. Yard Long Bean (Vigna unguilata L.) were grown to evaluate optimum rate of N, P, and K fertilizer in Ultisol Jasinga soil with low pH (5.5), low C-Organic (1.54%), very low N-total (0.12 %), low K content (0.29 me/100 g), but very high soil P2O5 concentration (19.2 ppm) to evaluate the best crop management practices with starter solution.
- Optimum fertilizer rate for kangkong (Ipomoea reptans L.) production in ultisol JasingaSusila, Anas D.; Prasetyo, Tisna P.; Palada, Manuel C. (2008)Proper fertilization of a crop is knowing the crop nutrient requirement for production of maximum yield and the potential level of nutrient availability from the soil. In addition to yield obtained, quality of the commodity is an important factor of profit and shelf-life for high-value crops. Nitrogen, phosphor, and potassium availability are the most limiting factors for maximum growth and yield. Kangkong (Ipomoea reptans L.) are important traditional leafy vegetables crops cultivated in Indonesia. Kangkong (Ipomoea reptans L.) were grown to evaluate optimum rate of N, P, and K fertilizer in Ultisol Jasinga soil with low pH (5.5), low C-Organic (1.54%), very low N-total (0.12 %), low K content (0.29 me/100 g), but very high soil P2O5 concentration (19.2 ppm), to evaluate the best crop management practices with starter solution.
- Optimum fertilizer rate for kangkong (Ipomoea reptans L.) production in ultisol JasingaSusila, Anas D.; Prasetyo, Tisna P.; Kartika, Juang Gema (2008)Proper fertilization of a crop is knowing the crop nutrient requirement for production of maximum yield and the potential level of nutrient availability from the soil. In addition to yield obtained, quality of the commodity is an important factor of profit and shelf-life for high-value crops. Nitrogen, phosphor, and potassium availability are the most limiting factors for maximum growth and yield. Kangkong (Ipomoea reptans L.) are important traditional leafy vegetables crops cultivated in Indonesia. Kangkong (Ipomoea reptans L.) were grown to evaluate optimum rate of N, P, and K fertilizer in Ultisol Jasinga soil with low pH (5.5), low C-Organic (1.54%), very low N-total (0.12 %), low K content (0.29 me/100 g), but very high soil P2O5 concentration (19.2 ppm), to evaluate the best crop management practices with starter solution.
- Optimum fertilizer rate for yard long bean (Vigna unguilata L.) production in ultisol JasingaSusila, Anas D.; Prasetyo, Tisna P.; Kartika, Juang Gema (2008)Proper fertilization of a crop is knowing the crop nutrient requirement for production of maximum yield and the potential level of nutrient availability from the soil. In addition to yield obtained, quality of the commodity is an important factor of profit and shelf-life for high-value crops. Nitrogen, phosphor, and potassium availability are the most limiting factors for maximum growth and yield. Yard Long Bean (Vigna unguilata L.) were grown to evaluate optimum rate of N, P, and K fertilizer in Ultisol Jasinga soil with low pH (5.5), low C-Organic (1.54%), very low N-total (0.12 %), low K content (0.29 me/100 g), but very high soil P2O5 concentration (19.2 ppm) to evaluate the best crop management practices with starter solution.
- Vegetable Agroforestry Systems in IndonesiaSusila, Anas D.; Purwoko, Bambang S.; Roshetko, James M.; Dahlia, Lia; Kartika, Juang Gema; Wijaya, Kusuma; Budidarsono, Suseno; Midmore, David J.; Prasetyo, Tisna P.; Palada, Manuel C.; Rahmanulloh, Arif; Raimadoya, Mahmud; Puspitawati, Herien; Kurniawan, Iwan; Trikoesoemaningtyas, Tri; Kunta, K.; Sombatpanit, Samran (Beijing, China: World Association of Soil and Water Conservation (WASWAC), Nairobi, Kenya: the World Agroforestry Center (WAC-ICRAF), 2012-11-30)