Judul: Hubungan karakteristik lahan dengan produktivitas duku (Lansium domesticum corr) di Provinsi Jambi
Abstrak: Duku is one of horticultural crops and tropical fruits that has high commercial value. Actually, the trees that produce fruits have various age between 30 to 75 years. Some farmers reluctant to conduct replanting due to very long harvesting time, (15 years above). Government of Jambi Province intends to maintain and develop the duku through the crop improvements and extensification. For that purpose it needs to understand crop requirement related to land characteristic. The aims of this research are to identifiy land characteristics that associated to duku productivity, describe the optimum land characteristics to support maximum duku productivity, and to investigate the significance influent of land characteristics on optimum duku productivity. The study was conducted by field survey exploration approach, done March to December 2009. This study used primary and secondary data. Secondary data included climate and duku distribution in Jambi Province. Primary data was collected through field surveys, including biophysical properties and crop productivity. Data analysis used line boundary method analysis and discriminant analysis. Biophysical properties and productivity were plotted on scatter diagram and the distribution of points form a model of the boundary line. The model was selected with the highest determinant coefficient (R2). The model of the biophysical properties and production relationship could determine land characteristics that associated with optimum productivity. The optimum productivity was associated with soil texture of sandy clay, sandy clay loam, loam, and clay loam, soil depth about > 56 cm, soil pH between 4,5 to 6,4, C organic content of > 0.60 %, CEC was about > 16,00 cmol / kg, base saturation was about > 5 %, available P was about > 3 ppm, exchangeable K content of > 0.50 cmol/kg, and Al saturation was about < 53%. The discriminant analysis show that duku productivity was significantly influenced by soil pH, CEC, sand content and exchangeable Ca.
Keyword: 

Judul: The Relationship between Land Characteristics and Horticultural Crop Productivity in Cemplang Village, Cibungbulang District, Bogor Regency
Abstrak: The Relationship between Land Characteristics and Horticultural Crop Productivity in Cemplang Village, Cibungbulang District, Bogor Regency. Supervised by Dr. Ir. Darmawan, M.Sc and Putri Oktariani, SP, M.Agr. Land characteristics can affect agricultural commodities. Land characteristics that are not in accordance with the conditions for growing a plant will result in low productivity of the plant. This is experienced by the Bakin and Berkah farmer group in Cemplang Village which has horticultural commodities of banana, corn, cucumber and eggplant. The productivity of these commodities has not been maximized, because the cultivation practices carried out have not been adapted to the characteristics of the land. Therefore, it is necessary to evaluate the land to identify the inhibiting factors that affect horticultural growth so that improvement efforts can be made to achieve maximum productivity. The research methods include soil morphology, laboratory analysis, soil classification, evaluation of land suitability and analysis of horticultural commodity farming. Land evaluation was carried out using the concept of land suitability according to the FAO framework (1976) based on the BBSDLP (2011) criteria with a matching technique. Based on the results of the study, it was found that the soil was categorized as Typic Hapludults family, smooth, sour, presumably kaolinitic, and isohyperthermic. Land suitability classes are S3-wa, nr, na for banana, corn, and cucumber commodities and S3-na for eggplant. Cultivation of corn, cucumber and eggplant commodities is efficient but economic value can be increased. In order to produce maximum productivity, other improvements to the land are needed such as N and K fertilization, increasing soil organic matter content, and fertilizing according to the doses required for each commodity.
Keyword: Banana, R/C ratio, Typic Hapludults

Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
Keyword: