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All Journal Jurnal Agrotek Tropika
Muhajir Utomo
Universitas Lampung
Agriculture, Biological Sciences & Forestry

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PENGARUH SISTEM OLAH TANAH DAN PEMBERIAN MULSA ORGANIK TERHADAP ALIRAN PERMUKAAN DAN EROSI PADA PERTANAMAN KACANG HIJAU (Vigna radiata) MUSIM TANAM KE EMPAT DI LABORATORIUM LAPANG TERPADU FAKULTAS PERTANIAN UNIVERSITAS LAMPUNG Ahmad Shan Kemala Jaya; Irwan Sukri Banuwa; Hery Novpriansyah; Muhajir Utomo
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.614 KB) | DOI: 10.23960/jat.v8i2.3907

Abstract

Tillage can significantly affect soil susceptibility to erosion which can accelerate and increase the rate of erosion. The use of mulch can reduce erosion by reducing the impact energy of falling rain so it does not damage the structure and aggregate of the soil, reducing speed, volume and scouring of surface runoff. This study aims to determine the effect of (1) tillage systems on surface runoff and erosion in green bean plant  (2) applying organic mulch to the amount of surface runoff and erosion in green bean plant  (3) the interaction between the tillage system and the use of mulch on surface runoff and erosion in green bean plant . This research was conducted in March to June 2017 in the Integrated Field Laboratory of the Faculty of Agriculture, University of Lampung. The design used is factorial in the Complete Randomized Block Design (RCBD) on two treatment factors namely the tillage system and the mulch with four replications. The results showed that the tillage system did not significantly affect all observed variables. In the treatment of giving and without mulch also did not significantly affect all observed variables. The response of surface runoff and erosion in green bean plant  to the tillage system does not depend on the organic mulch shown on all variables.
PENGARUH SISTEM OLAH TANAH DAN PEMUPUKAN NITROGEN JANGKA PANJANG TERHADAP RESPIRASI TANAH DI LAHAN POLITEKNIK NEGERI LAMPUNG TAHUN TANAM KE-27 Erdiana Damayanti; Muhajir Utomo; Ainin Niswati; Henrie Buchari
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.994 KB) | DOI: 10.23960/jat.v8i2.3898

Abstract

Unsustainable cultivation techniques can cause carbon loss on farm.   The cultivation technique that is often used by farmers today is intensive tillage.  Intensive tillage can increase CO2. Steps to reduce CO2 gas emissions, while increasing carbon stored in the soil by implementing agricultural cultivation with conservation tillage system (Olah Tanah Konservasi). The conservation tillage system is able to reduce global warming through absorption of C in the soil, and reduce CO2 emissions. In addition, fertilization can also affect CO2 emissions. CO2 emissions in the soil come from soil respiration. The purpose of this study was to determine the effect of long-term tillage systems on soil respiration, determine the effect of long-term N fertilization on soil respiration, and determine the effect of interactions between tillage systems and long-term N fertilization on soil respiration. The study was arranged in a randomized block design (RBD) consisting of two factors, namely the tillage system and nitrogen fertilization factors. The first factor is the treatment of tillage system (T) namely T0 = no tillage, and T1 = intensive tillage, while the second factor is without nitrogen fertilizer (N0) and high nitrogen fertilizer (N1). The data obtained will be tested for homogeneity by Bartlett Test and additives tested by Tukey Test. Furthermore, the data were analyzed by analysis of variance and continued with a BNJ test of 5% level. Observation of soil respiration was done 4 times, namely -1, 1, 2, 3 days after tillage. The results showed that soil respiration one day before to three days after the soil was treated in intensive tillage (OTI) was the same as the no tillage system (TOT), soil respiration -1 days after tillage to 3 days after tillage on nitrogen fertilization (100 N kg ha-1 ) given in the previous planting season the same as without fertilization (0 kg N ha-1), and there is no interaction between the tillage system and nitrogen fertilization on soil respiration.
PENGARUH SISTEM OLAH TANAH DAN PEMUPUKAN TERHADAP POPULASI DAN BIOMASSA CACING TANAH PADA PERTANAMAN KACANG HIJAU (Vigna radiata L.) DI LLT GEDUNG MENENG Shafira Fatimah; Syamsul Arif; Muhajir Utomo; Ainin Niswati
Jurnal Agrotek Tropika Vol 12, No 1 (2024): JURNAL AGROTEK TROPIKA VOL 12, Februari 2024
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v12i1.8443

Abstract

Cacing tanah merupakan salah satu biota tanah penting yang dapat dijadikan sebagai bioindikator dari tanah yang sehat. Penggunaan sistem olah tanah dan pemupukan pada lahan pertanian mampu mempengaruhi cacing tanah. Tujuan penelitian ini untuk mengetahui pengaruh sistem olah tanah dan pemupukan terhadap populasi dan biomassa cacing tanah pada pertanaman kacang hijau. Penelitian ini dilaksanakan pada April 2017 sampai April 2018 di Laboratorium Lapang Terpadu (LLT) Fakultas Pertanian, Universitas Lampung.  Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang disusun secara faktorial dengan dua faktor perlakuan. Faktor pertama adalah sistem olah tanah (T) yang terdiri dari olah tanah minimum (T1) dan olah tanah intensif (T2). Faktor kedua yaitu pemupukan terdiri dari tanpa pupuk (P0) dan aplikasi pupuk (P1) yaitu 1 ton ha-1 pupuk kandang kotoran ayam dan 200 kg ha-1 pupuk majemuk. Homogenitas data diuji dengan Uji Barrlett dan aditivitas data dengan Uji Tukey. Setelah dilakukan analisis ragam, perbandingan nilai tengah antar perlakuan dilakukan dengan uji BNT pada taraf 5%. Uji korelasi dilakukan antara suhu tanah, kadar air tanah, C-organik tanah dan pH tanah dengan populasi dan biomassa cacing tanah.Hasil penelitian menunjukan bahwa sistem olah tanah berpengaruh nyata terhadap populasi total cacing tanah pada pengamatan 80 HST dan biomassa total cacing pada pengamatan 40 HST dan 80 HST.  Populasi dan biomassa cacing tanah pada lahan olah tanah minimum (OTM) nyata lebih tinggi dibandingkan dengan lahan olah tanah intensif (OTI).  Terdapat korelasi antara kadar air tanah dengan populasi cacing tanah pada pengamatan 80 HST.  Identifikasi cacing tanah pada penelitian ini menunjukkan bahwa jenis cacing tanah tergolong dalam famili Megascolicidae dengan genus Pheretima. 
Co-Authors Ahmad Shan Kemala Jaya Ainin Niswati Erdiana Damayanti Henrie Buchari Hery Novpriansyah Irwan Sukri Banuwa Shafira Fatimah Syamsul Arif