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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Hortikultura Indonesia (JHI) Journal of Tropical Soils AGRIVITA, Journal of Agricultural Science JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Agrotek Tropika Jurnal Agrotropika Journal of Industrial System Engineering and Management Jurnal Pengabdian Fakultas Pertanian Universitas Lampung
Agus Karyanto
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics Transportation

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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, .; Karyanto, Agus; Niswati, Ainin; Lumban Raja, Jamalam; Triyono, Sugeng; Harini, Nyang Vania Ayuningtyas
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
Effect of long-term Tillage and Nitrogen Fertilization Residue on Soil Biochemical Properties and Cowpea Yield Afriliyanti, Rizki; Yusnaini, Sri; Karyanto, Agus; Hapsoro, Dwi; Niswati, Ainin; Utomo, Muhajir
JOURNAL OF TROPICAL SOILS Vol. 26 No. 3: September 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i3.141-147

Abstract

Sustainable soil management practices must enhance or maintain soil quality and crop yields. The objective of this experiment was to study the effect of long-term (32 years) tillage system and nitrogen fertilization residue on soil biochemical properties and cowpea (Vigna unguiculata) yields. This research was conducted using four replications, a factorial experiment arranged in a randomized block design. The first factor was tillage systems consisting of intensive tillage (T1) and no-tillage (T2) and the second factor was nitrogen fertilization residue (N) consisting of N1 (0 kg N ha-1) and N2 (200 kg N ha-1). Data were analyzed using analysis of variance; if there was a significant difference will be continued with the Least Significant Difference (LSD) test at 5%. Principal Component Analysis (PCA) determined the relationship among observed variables. The results showed that no-tillage could give better results on soil respiration and soil bacteria and fungi population than intensive tillage. Lower soil pH was found at 200 kg N ha-1 fertilizer residue than control (without N fertilizer). The cowpea growth and yields were high at long-term N1T2 and N2T1 treatment. Principal component analysis showed an interrelationship among soil biochemical properties, growth, and yield of cowpea.
Co-Authors , Agustiansyah Afriliyanti, Rizki Ahistasari, Asih Ainin Niswati, Ainin Ardanti, Ade Novia Ardian Ardian Arlina Theresa Manurung Aulia, Fathia Nur Bayu Lesmana, Bayu Berlintina, Duta Cahya Ginting, Yohannes Dermiyati, . Desi Maulida Desi Sapitri, Desi Dwi Asmono DWI HAPSORO Eko Pramono Ermawati . Farida Hanum Fauzan, Naufal Dani Fembriarti Erry Prasmatiwi Ginting, Yohannes Cahya Hamiranti, Rahmadyah Harini, Nyang Vania Ayuningtyas Hayane Adeline Warganegara, Hayane Adeline Kukuh Setiawan Kuswanta Futas Hidayat Lukmi, Farida Lumban Raja, Jamalam Maraaini, Ajeng Maria Viva Rini Masniar Masniar, Masniar Mohammad Arief Nur Wahyudien Muhammad Kamal Nugroho, Rizki Bagus Nur Azizah Olivia Cindowarni Pratiwi, Bela Ayu Prayogi, Adi Noor Purnomo Purnomo Raden Ajeng Diana Widyastuti Rafika, Eni Ramadiana, Sri Rosma Hasibuan, Rosma Rugayah Rugayah Rugayah Rusdi Evizal Sadiyah, Nyimas Sandi Asmara Sari, Oktafia Sembodo, Dad Setiya Wati, Tri Agus Setyo Widagdo Solikhin Solikhin Sri Yusnaini Sugeng Triyono Sugiatno Sugiatno Suherni, Desi Suselawati, Dewi Suskandini Ratih Suskandini Ratih Dirmawati Syafitri, Novalia Tajuddin, Tamrin Tumiar Katarina Manik Utomo, Muhajir Widyastuti, R. A. Diana YUSNITA YUSNITA