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All Journal International Journal of Renewable Energy Development Journal of Tropical Soils Jurnal Keteknikan Pertanian Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan agriTECH Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agricultural Biosystem Engineering
Sugeng Triyono
Universitas Lampung
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Other

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Journal : Journal of Tropical Soils

 1 
Activity of Soil Microorganisms During the Growth of Sweet Corn (Zea Mays Saccharata Sturt) in the Second Planting Time with the Application of Fertilizers and Biochar . Dermiyati; Agus Karyanto; Ainin Niswati; Jamalam Lumban Raja; Sugeng Triyono; Nyang Vania Ayuningtyas Harini
JOURNAL OF TROPICAL SOILS Vol 22, No 1: January 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i1.37-45

Abstract

Efforts to increase the production of sweet corn can be done with the application of fertilizers, either inorganic, organic orits combination. In addition, the application of soil amendments such as biochar is also expected to improve soil fertility that will indirectly increase the production of sweet corn.Organonitrophos fertilizer is an organic fertilizer developed by lecturers of Faculty of Agriculture, University of Lampung. The research was aimed to study effect the combination of organonitrophos, and inorganic fertilizers, biochar and the interaction between fertilizer combination and biochar on soil respiration and soil microbial biomass.The research was conducted in the Integrated Field Laboratory of Lampung University using 6x2 factorial in a Randomized Block Design with 3 replications. The first factor was six levels combination of organonitrophos and inorganic fertilizers (P0, P1, P2, P3, P4, and P5). The second factor was two levels of biochar dosage (B0 and B1). Data was analyzed by Analysis of Variance and followed by the Least Significant Difference (LSD)Test at 5% level. The observed variables were soil microorganism activity likely soil respiration and soil microbial biomass. The results showed that P3B1treatment (300 kg Urea ha-1, 125 kg SP-36 ha-1, 100 kg KCl ha-1 + 2500 kg organoitrophos ha-1) was the highest soil respiration at of 60 days after planting (DAP). P5 treatment (5000 kg Organonitrophos ha-1) has the highest soil microbial biomasscompared to other treatments at 60 and 90 DAP. B1 treatment (5000 kg biochar ha-1) has higher soil respiration and soil microbial biomasscompared to treatment (0 kg biochar ha-1. There was an interaction between combination of organonitrophos and inorganic fertilizers and biochar on soil respiration at 90 DAP. However, there was no interaction between fertilizer combination and biochar on soil microbial biomass.Keywords: Biochar, Fertilizer Combination, Organonitrophos, Soil Microbial Biomass Carbon and Soil Respiration
Application of Organonitrofos and Inorganic Fertilizer on Cassava (Manihot Esculenta Crantz) in Ultisol Soil . Dermiyati; Jamalam Lumbanraja; Irwan Sukri Banuwa; Sugeng Triyono; Oktarina Maulida; Debby Agsari
JOURNAL OF TROPICAL SOILS Vol 20, No 3: September 2015
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2015.v20i3.167-172

Abstract

A field experiment was conducted to find out a combination dose of a novel organic fertilizer (Organonitrophos, OP) and inorganic fertilizers (N, P, and K) for the growth and yield of cassava (Manihot esculenta Crantz) during two planting periods of 2012-2013 and 2013- 2014 in ultisol soil (low in nutrients and organic matter) of Bandarlampung. The treatments were a six combination of organic and inorganic fertilizer. The experiments were laid out in a randomized block design with three replications. The difference combination of Organonitrophos and NPK fertilizers showed significantly effects on the plant height, the NPK sorption of total plant and total root, and the yields of cassava. The highest NPK sorption of total plants and total yields and the highest yields of cassava were found in N45P36K120OP1,000 kg ha-1 combination for the two planting periods. Based on Relative Agronomic Effectiveness (RAE) of cassava root yield, it can be concluded that 45-36-120-1,000 N-P-K-Organonitrophos kg ha-1 was the best combination dose of inorganic and organic fertilizers for the production of cassava in ultisol soil of Bandarlampung. [How to Cite: Dermiyati, J Lumbanraja, IS  Banuwa,  S Triyono,  O  Maulida  and  D  Agsari. 2015. Application of Organonitrofos and Inorganic Fertilizer on Cassava (Manihot Esculenta Crantz) in Ultisol Soil. J Trop Soils 20: 167-172. Doi: 10.5400/jts.2015.20.3.167]
Co-Authors . Dermiyati . Dermiyati Agata Desinta Yoanma Agus Haryanto Agus Haryanto Agus Haryanto Agus Karyanto Agustin, Stefani Silvi Ahmad Tusi Ahmad Tusi Ainin Niswati Annisa Nur Rachmawaty Budianto Lanya Dea Gusti Dini Alhadi Debby Agsari Diding Suhandy Disca Anggi Pratiwi Dwi Cahyani Dwi Haryono Elhamida Rezkia Amien Iis Marlina Irwan Sukri Banuwa Jamalam Lumban Raja Jamalam Lumbanraja M. Zen Kadir made sudarmawan Mareli Telaumbanua Marisa Marisa Marotin, Fadli Mirwan Saputro Muhammad Amin Mulyani, Yessi Murdapa, Fauzan Ning Hartati Setiasih Nomi Setyowati Nugroho Haryono Nugroho Haryono Nyang Vania Ayuningtyas Harini Oktafri Oktafri Oktarina Maulida Ovita Yozana R.A. Bustomi Rosadi RA Bustomi Rosadi Risa Inggit Pramitha Rodiyanti Rodiyanti Shilvia Vera Sinaga Sigit Prabawa Sisi Agustin Siti Suharyatun Sukron Mahmud Titin Yulianti Udin Hasanudin Ully Silviana Wicaksono, Nugroho Hargo Winda Rahmawati Winda Rahmawati Yoga Bagus Kurniawan Yuko Armandho Pratama