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Rijadi Subiantoro
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Agriculture, Biological Sciences & Forestry

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Pengaruh Penggunaan Kompos Pelepah Kelapa Sawit dengan Berbagai Mikroorganisme Lokal (MoL) dan Cara Aplikasinya terhadap Sifat Fisik Tanah dan Produksi Tembakau (Nicotiana tabacum L.) Aviv Event Adviadri Sinaga; Rijadi Subiantoro; Fatahillah Fatahillah
Jurnal Agro Industri Perkebunan Volume 3 No. 1, Mei 2015
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/aip.v3i1.15

Abstract

Organic fertilizer has the advantage of containing nutrients more complete than the inorganic fertilizer albeit in relatively small quantities. In general, organic fertilizers may contribute to improve the physical, chemical, and biological soil. Peneltian purpose compost To determine the effect of palm fronds on the physical properties of the soil (moisture content, bulk density and porosity of the soil) and dry weight of leaf tobacco. The experiment was conducted in September 2015 in State Polytechnic of Lampung experimental  garden, arranged in a randomized block design factorial with bio-activator treatment differences in the way applications compost mixed with soil and on the ground. Soil sampling was take 5 cm above ground. Observations carried out on soil water content, bulk density, porosity of the soil and leaf dry weight. The results showed that compost of oil palm fronds affect the physical properties of the soil, but not significantly different to the dry weight of leaf tobacco.Keywords: compost, soil physical properties, tobaccoPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/15
Pengaruh Lama Fermentasi pada Kualitas Pupuk Kandang Kambing Rino Anggi Wijaksono; Rijadi Subiantoro; Bambang Utoyo
Jurnal Agro Industri Perkebunan Volume 4 No. 2, Oktober 2016
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/aip.v4i2.50

Abstract

Goat is one of animal by the village people in Indonesia is one of the goat farm animals are much in demand by the people of the village. Adult goats capable  produce solid fecal waste as much as 0.5 kg per day, in the long term this will be a problem if not handled properly. Goat manure can be used as fertilizer. In the manufacture of manure requires serious attention because during the fermentation progresses, there is  variety of transformation processes in fertilizers. The purpose of this study was to observe the effect of fermentation on the quality of goat manure. This study was conducted in State Polytechnic of Lampung in October 2014 until February 2015. The experimental design used was a randomized block design (RBD) consisted of six treatment fermentation period:  2, 4, 6, 8, 10, and 12 weeks with three replications.length of fermentation showed the presence of a marked influence on C/N ratio. The value of C/N ratio has decreased accordance with the length of fermentation time, indicated in the treatment of older fermentation 8, 10, and 12 which have a value of C/N ratio is getting smaller 15, 12, and 10.The nutrient content of N and P unless the element K not significantly different, but all three have increased. Based on research that has been done, it can be concluded that the length of fermentation effect on the value of C/N ratio, the content of N and P, but has no effect on the value of the content of K manure goats and best quality was obtained in treatment fermentation period of 10 weeks with a value of C/N ratio 12 and N content of 1.16%, P: 1.01%, and K: 1.27%.Keywords: fermentation duration, goat manure, organic fertilizerPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/50
Co-Authors Aviv Event Adviadri Sinaga Bambang Utoyo Fatahillah Fatahillah Rino Anggi Wijaksono