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E.D. Purbajanti
Faculty of Animal Agriculture, Diponegoro University, Tembalang Campus, Semarang 50275, Central Java
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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MACRO NUTRIENTS UPTAKE OF FORAGE GRASSES AT DIFFERENT SALINITY STRESSES Kusmiyati, F.; Purbajanti, E.D.; Kristanto, B.A.
Journal of the Indonesian Tropical Animal Agriculture Vol 34, No 3 (2009): (September)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.34.3.205-210

Abstract

The high concentration of sodium chloride (NaCl) in saline soils has negative effects on the growth ofmost plants. The experiment was designed to evaluate macro nutrient uptake (Nitrogen, Phosphorus andPotassium) of forage grasses at different NaCl concentrations in growth media. The experiment wasconducted in a greenhouse at Forage Crops Laboratory of Animal Agriculture Faculty, Diponegoro University.Split plot design was used to arrange the experiment. The main plot was forage grasses (Elephant grass(Pennisetum purpureum ) and King grass (Pennisetum hybrida)). The sub plot was NaCl concentrationin growth media (0, 150, and 300 mM). The nitrogen (N), phosphorus (P) and potassium (K) uptake in shootand root of plant were measured. The result indicated increasing NaCl concentration in growth mediasignificantly decreased the N, P and K uptake in root and shoot of the elephant grass and king grass. Thepercentage reduction percentage of N, P and K uptake at 150 mM and 300 mM were high in elephant grassand king grass. It can be concluded that based on nitrogen, phosphorus and potassium uptake, elephantgrass and king grass are not tolerant to strong and very strong saline soil.
Production, quality and livestock carrying capacity of Panicum maximum and Sesbania grandiflora at saline soil with different manure application Kusmiyati, F.; Pangestu, E.; Surahmanto, S.; Purbajanti, E.D.; Herwibawa, B.
Journal of the Indonesian Tropical Animal Agriculture Vol 44, No 3 (2019): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.44.3.303-313

Abstract

The objective of this study was to evaluate the effect of manure at saline soil on forage production, quality and livestock carrying capacity of P. maximum and S. grandiflora. The research was conducted on moderately saline soil at Rembang Regency, Central Java Province, Indonesia.Randomized complete block design was used as design experiment. The treatments were different dosage of manure as organic amendment (0, 10 and 20 tonnes/ha). Forage crops were P. maximum and S. grandiflora that planted monoculture or mixed-cropping. Parameters measured were dry matter (DM) production, ash, crude protein, crude fibre, ether extract, total digestible nutrients. P. maximum was cut eight times, S. grandiflora was cut six times during one year. The result showed that the highest total dry matter production of mixed cropping P. maximum and S. grandiflora was available at moderately saline soil with application 20 ton/ha manure. Total production of dry matter, crude protein and total digestible nutrient available at application 20 ton/ha manure were 29131 kg/ha/year; 3722 kg/ha/year and 17718 kg/ha/year, respectively. Carrying capacity based on dry matter, crude protein and total digestible nutrients were 10.8 AU/ha/year; 13.6 AU/ha/year and 11.3 AU/ha/year, respectively. In conclusion, application of 20 ton/ha manure at saline soil increased production, crude protein and carrying capacity. 
PHOTOSYNTHESIS AND YIELDS OF GRASSES GROWN IN SALINE CONDITION Purbajanti, E.D.; Soetrisno, R.D.; Hanudin, E.; Budhi, S.P.S.
Journal of the Indonesian Tropical Animal Agriculture Vol 35, No 1 (2010): (March)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.35.1.42-47

Abstract

The aim of this study was to know effects of saline condition to crop physiology, growth andforages yield. A factorial completed random design was used in this study. The first factor was type ofgrass, these were king grass (Pennisetum hybrid), napier grass (Pennisetum purpureum), panicum grass(Panicum maximum), setaria grass (Setaria sphacelata) and star grass (Cynodon plectostachyus). Thesecond factor was salt solution (NaCl) with concentration 0, 100, 200 and 300 mM. Parameters of thisexperiment were the percentage of chlorophyll, rate of photosynthesis, number of tiller, biomass and drymatter yield. Data were analyzed by analysis of variance and followed by Duncan’s multiple range testwhen there were significant effects of the treatment. Panicum grass had the highest chlorophyll content(1.85 mg/g of leaf). Photosynthesis rate of setaria grass was the lowest. The increasing of NaClconcentration up to 300 mM NaCl reduced chlorophyll content, rate of photosynthesis, tiller number,biomass yield and dry matter yield. Responses of leaf area, biomass and dry matter yield to salinitywere linear for king, napier, panicum and setaria grasses. In tar grass, the response of leaf area andbiomass ware linear, but those of dry matter yield was quadratic. The response of tiller number tosalinity was linear for all species.
Co-Authors Ardhiansyah, N. B.A. Kristanto Dwi Retno Lukiwati E. Hanudin E. Pangestu F. Kusmiyati Herwibawa, B. R.D. Soetrisno S. Surahmanto S.P.S. Budhi Sumarsono Sumarsono Winata, N.A.S.H