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All Journal Jurnal Ilmu-Ilmu Pertanian Indonesia TERRA : Journal of Land Restoration
Mukhtasar Mukhtasar
University of Bengkulu
Agriculture, Biological Sciences & Forestry

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EFEKTIVITAS EKSTRAK DAUN PEPAYA DALAM PENGENDALIAN KUTU DAUN PADA FASE VEGETATIF TANAMAN TERUNG Riski Ramadhona; Djamilah Djamilah; Mukhtasar Mukhtasar
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 1 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.1.1-6

Abstract

[EFFICACY OF PAPAYA LEAF EXTRACT IN CONTROLLING COTTON APHID DURING VEGEATIVE GROWTH STAGE OF EGGPLANT].  Cotton aphid (Aphis gossypii Glover) can cause serious economic losses in the eggplant production.  The application of synthetic pesticides can be effective in controlling the pest but it may not be the best solution for the human health and environment. Botanical pesticides have long been known for their potential as the alternative to synthetic pesticides for crop protection with reduced risk to human health and environmental hazard. Objective of this study was to compare the efficacy of papaya leaf extract solutions in controlling cotton aphid and their effect on the vegetative growth of eggplant. Papaya leaf extract solutions differing in concentration (0%, 10%, 20%, 30%, 40%, and 50%) were sprayed onto aphid infested eggplants to observe the insect mortality, crop damage, and the lethal concentration at LC50 and LC90. The mortality of aphid was significantly increased following the application of papaya leaf extract, with the highest mortality (91.33%) was found on the concentration of 50%. The lethal concentrations of the extract causing 50% (LC50) and 90% (LC90) aphid mortality were   9.98% and 41.99%, respectively. As compared to the control treatment, the crop damage was significantly reduced by the application of the papaya leaf extract solution. 
Land Suitability Evaluation for New Paddy Rice Field in Mukomuko District Albert Carles; Kanang Setyo Hindarto; Heru Widiyono; Mukhtasar Mukhtasar; Hermansyah Hermansyah
TERRA : Journal of Land Restoration Vol 4, No 1 (2021)
Publisher : Department of Soil Science, Faculty of Agriculture, University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.4.1.17-22

Abstract

This study aims to identify the physical, chemical characteristics of the soil and determine the suitability of rice fields for new openings in Mukomuko. This research was conducted from September to October 2019, which consisted of fieldwork and laboratory analysis. This research uses a survey method, soil sampling is carried out by a composite method consisting of 5 soil samples. Composite soil sampling technique based on land unit work maps produced from the map of soil types Mukomuko district scale of 1: 100.000. The results showed that all samples had the same dominant limiting factors namely P2O5, K2O, and Base Saturation. Land suitability for lowland rice plants in Mukomuko District Af.1.2.1 (S3nr) land area with an area of 42.68 ha, Af.1.2.2 (S3nr) land area with an area of 56.65 ha, land unit Tf.2.1 (S3nr) with an area of 60.15 ha, and land unit Tf.3.1 (S3nr) with an area of 89.30 ha. 
RESPON PERTUMBUHAN DAN HASIL LIMA GENOTIP PADI HIBRIDA TERHADAP PUPUK ORGANIK TANDAN KOSONG KELAPA SAWIT (TKKS) PADA TANAH ULTISOL David Khairullah Hadi; Reny Herawati; Widodo Widodo; Mukhtasar Mukhtasar; Helfi Eka Saputra; Eko Suprijono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22 No 2 (2020)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.2.106-113

Abstract

[RESPONSE OF GROWTH AND YIELD OF FIVE RICE HYBRID GENOTYPE ON THE ORGANIC FERTILIZER OF PALM OIL BUNCHES ON ULTISOL]. Oil Palm Bunches (OPB) are solid waste potential as organic fertilizer to improve soil physical, biological and chemical properties, especially on ultisol soils for rice development. This research was conducted in August - November 2019 in Padang Harapan, Bengkulu City. The materials used were F1 rice seeds, OPB organic fertilizer. The experimental design was a factorial Randomized Completely  Block Design (RCBD) with 2 factors. The first factor was 5 hybrid genotypes (F1), namely, Kuning x Inpago5, Kuning x Inpago9, Kuning x Inpago6, Arang x Inpago8, and Kuning x Salumpikit. The second factor was the dosage of OPB, namely 0 (control), 10 tonnes/ha, 15 tonnes/ha, and 20 tonnes/ha, the experiment was repeated 3 times. The variables observed were plant height, number of productive tillers, flowering age, harvest age, the total number of fill grains, number of filled grains, number of empty grains, 1000 grain weight, and grain weight/hill. The results showed that there was an interaction between genotype and OPB on the number of tillers. The interaction between the Kuning x Salumpikit genotypes and 10 tonnes/ha of organic fertilizer produced the largest number of tillers. Genotype G3(Kuning x Inpago6) produced the best rice growth and yield. In this study, the optimum point for OPB fertilization on growth and yield of the five genotypes tested had not been obtained.
Co-Authors Albert Carles David Khairullah Hadi Djamilah Djamilah Eko Suprijono Helfi Eka Saputra Hermansyah Hermansyah Heru Widiyono Kanang Setyo Hindarto Reny Herawati Riski Ramadhona Widodo Widodo