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All Journal AGRIVITA, Journal of Agricultural Science
Edson Begliomini
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Agriculture, Biological Sciences & Forestry

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IMPROVING NITROGEN FERTILIZER ABSORPTION AND ITS EFFECT ON QUALITY AND SEED YIELD OF CORN (Zea mays) Kuswanto, Kuswanto; Wicaksono, Karuniawan Puji; Sudakir, Sudakir; Begliomini, Edson
AGRIVITA, Journal of Agricultural Science Vol 35, No 2 (2013)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

Improving nitrogen uptake by pyraclostrobin application in maize under green house and field conditions were investigated. There were three series experiments conducted in dry season, 2011 and 2012.  The research conducted using nested design and three replications.  Nested design applied to get information as careful as possible about the role of treatment, especially the main factor.  The first and second experiments hold at field and green house and the third experiment hold at green house.  They had two factors, pyraclostrobin application and nitrogen fertilizer.  Vegetative growth, flowering and earing age, chlorophyll content, yield, amylose and protein content evaluated.    Application of pyraclostrobin, significantly increase nitrogen fertilizer efficiency.  Amylose content and fresh yield were different on nitrogen and pyraclostrobin application.  Application of pyraclostrobin 400 ml/ha significantly increase amylose 10.85-18.5%.  Both of amylose and protein content were increased by nitrogen fertilizer application.  Vegetative growth and chlorophyll content were affected by nitrogen and pyraclostrobin. Keywords: corn, N efficiency, pyraclostrobin, amylose, yield
Floral Stimulation and Behavior of Insect Pollinators Affected by Pyraclostrobin on Arabica Coffee Hagus Tarno; Karuniawan Puji Wicaksono; Edson Begliomini
AGRIVITA, Journal of Agricultural Science Vol 40, No 1 (2018): FEBRUARY
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i1.1719

Abstract

Coffee is the most valuable traded commodity after oil. On coffee, bees act to support a pollination that is shown by the number of harvested berries. This research aimed to evaluate the use of pyraclostrobin on flowering stage and insect pollinators on Arabica Coffee. Experiment was conducted in Kalisat Coffee Farm, Jampit, Bondowoso, ca. 1600 meters after sea level from October 2013 to April 2014. Randomized Block Design was adopted in this experiment. Three doses of pyraclostrobin and control were used as treatments such as 1.0, 1.5 and 2.0 cc L-1 of pyraclostrobin, and repeated three times. Percentage of fallen flower, fruiting stage, fruit production, frequency of bee`s visitation, and bee`s behavior was observed as variables in this experiment. Results showed that 1) percentage of fallen flowers was reduced by applying pyraclostrobin at 1.5 and 2.0 cc L-1 up to 50 % compared to control, 2) flowering rate was faster than control at 1.5 and 2.0 cc L-1 of pyraclostrobin, 3) application of 1.5 – 2.0 cc L-1 of pyraclostrobin increased the number of young fruits and pinheads, and 4) pollinators preferred to visit flowers of coffee trees which sprayed by pyraclostrobin than control treatment especially Apis mellifera.
IMPROVING NITROGEN FERTILIZER ABSORPTION AND ITS EFFECT ON QUALITY AND SEED YIELD OF CORN (Zea mays) Kuswanto Kuswanto; Karuniawan Puji Wicaksono; Sudakir Sudakir; Edson Begliomini
AGRIVITA Journal of Agricultural Science Vol 35, No 2 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i2.320

Abstract

Improving nitrogen uptake by pyraclostrobin application in maize under green house and field conditions were investigated. There were three series experiments conducted in dry season, 2011 and 2012.  The research conducted using nested design and three replications.  Nested design applied to get information as careful as possible about the role of treatment, especially the main factor.  The first and second experiments hold at field and green house and the third experiment hold at green house.  They had two factors, pyraclostrobin application and nitrogen fertilizer.  Vegetative growth, flowering and earing age, chlorophyll content, yield, amylose and protein content evaluated.    Application of pyraclostrobin, significantly increase nitrogen fertilizer efficiency.  Amylose content and fresh yield were different on nitrogen and pyraclostrobin application.  Application of pyraclostrobin 400 ml/ha significantly increase amylose 10.85-18.5%.  Both of amylose and protein content were increased by nitrogen fertilizer application.  Vegetative growth and chlorophyll content were affected by nitrogen and pyraclostrobin. Keywords: corn, N efficiency, pyraclostrobin, amylose, yield
Co-Authors Hagus Tarno Karuniawan Puji Wicaksono Karuniawan Puji Wicaksono Karuniawan Puji Wicaksono Kuswanto Kuswanto Kuswanto Kuswanto Sudakir Sudakir Sudakir Sudakir