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Journal : Jurnal Lahan Suboptimal

Aplikasi Cycocel dalam Pengendalian Getah Kuning Buah Manggis (Garcinia mangostana L.) pada Lahan Kering Irianto Irianto; Budiyati Ichwan; Mapegau Mapegau
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (420.471 KB) | DOI: 10.33230/JLSO.2.2.2013.60

Abstract

The aim of this experiment was to gain the accurate concentration of cycocel growth for controlling of yellow latex mangoesteen in different age level on field water stress.  This experiment was conducted in Koto Patah village, Keliling Danau, Kerinci, Jambi and was done from June until November 2011 at the altitude of 800 - 900 meter above sea level. Factorial experiment was arranged in a randomized block design. The first factor was cycocel concentrations: 0; 1.500; 3.000; 4.500; dan 6.000 mg L-1.  The second factor was levels of age plants: <30; 30-50; and >50 years.  The data were analyzed by using analysis of variance and continued with BNT test at α=5%.  The results of experiment showed that: (1) the impact of cycocel on number and weight of perfect fruits depended on the age of manggoesteen; (2) manggoesteens which were less than 30 years old and treated with 4.500 mgL-1 cycocel could increase number and weight of perfect fruits; (3) manggoesteens which were older, 30-50 years old and above 50 years old needed less cycocel namely 1.500 mgL-1 for increasing number and weight of perfect fruis.
Pengendalian Pecah Kulit Buah Duku (Lansium domesticum Corr.) dengan Kalsium Karbonat pada Lahan Suboptimal Budiyati Ichwan; Mapegau Mapegau; Irianto Irianto
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (541.669 KB) | DOI: 10.33230/JLSO.3.1.2014.77

Abstract

The broken skin on fruit was the main problem on quality of duku. The availability of calcium on soil presumable having an effect on broken skin on fruit of duku. A field experiment to evaluated the effect of calcium in controlling the broken skin on fruit of duku was carried out in Kumpeh Ulu, Muaro Jambi, Jambi from Januari 2009 through to Februari 2010. The experiment was conducted on suboptimal land with soil acidity is 4.97 (pH H2O). Randomized Completely Block Design was used with 3 replications. The treatments consisted of 4 calcium carbonat doses i.e. 0 ton/ha, 1.0 ton/ha, 1.5 ton/ha and 2.0 ton/ha. The result showed that calsium carbonat doses decresing percentage of broken skin on fruit of duku and increasing concentration of hemicelluloce on fruit skin and fresh weight of fruit, calcium carbonat dose 2 ton/ha gave the lowest percentage of broken skin and the highest hemicelluloce concentration on fruit of duku. The highest of fresh weight of fruit at calcium carbonat dose 1 ton/ha.
Improving Drought Tolerance in Chili Pepper by the Application of Local Microorganisms (LMo) Eliyanti Eliyanti; Zulkarnain Zulkarnain; Budiyati Ichwan; Trias Novita; Janes Sihotang
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 11 No. 1 (2022): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.11.1.2022.566

Abstract

his study aimed at determining the effect of spraying intervals of local microorganism (MoL) golden apple snails on the improvement of drought tolerance of chili grown under limited water availability. The trial was carried out at greenhouse and Plant Protection Laboratory, Faculty of Agriculture, University of Jambi for 6 months. The study used a Randomized Block Design with 2 factors and 3 replications. The first factor was the chili cultivar consisted of Vitra, Lado and Laris. While the second factor was the spraying interval of MoL golden apple snail consisted of 100% field capacity of soil water without MoL application, 75% field capacity of soil water and spraying intervals once a week, and 75% field capacity of soil water and spraying intervals every two weeks. The results showed that spraying MoL golden apple snail at intervals of either once in 1 or 2 weeks could increase tolerance to drought stress in three chili cutivars grown under 75% field capacity of soil water. Plant growth and yield at 75% field capacity of soil water was the same as that of plants grown under optimum conditions (100 % field capacity of soil water), MoL spray on the cv. Vitra could increase fruit weight per plant by up to 32% over fruit weight of those plants grown under optimum conditions.
Response of Red Chili (Capsicum anuuum L.) to Humic Acid Application in Dryland Budiyati Ichwan; Mukhsin Mukhsin; Eliyanti Eliyanti; Windasari Windasari
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 11 No. 2 (2022): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.11.2.2022.565

Abstract

Red chili cultivation in dry land in an effort to increase production and productivity is constrained by the limited availability of water. The application of humic acid increases the ability of soils to retain restricted water and enhances plant growth and yield. This study aimed to investigate the response of red chili grown in dry land to the application of humic acid. Research place at the Teaching and Research Farm, Faculty of Agriculture, Jambi University. A Randomized Block Design with 5 replications was used in this study. The treated humic acid dose is 0 ton/ha, 2.5 ton/ha, 5 ton/ha, 7.5 ton/ha, and 10 ton/ha. Red chili gave a positive response to the application of humic acid by increasing plant height, number of branches, fruit number, and fruit weight. The dose of humic acid that gave the highest yield of 6.6 ton/ha was 5 ton/ha. This study was only able to provide a yield of 44.06% when compared to the potential yield of red chili.
Growth and Yield of Shallots at various Plant Spacing in Ultisol Dry Land Budiyati Ichwan; Eliyanti Eliyanti; Zulkarnain Zulkarnain; Susilawati Susilawati; Indra Permana
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 1 (2023): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.12.1.2023.622

Abstract

Plant spacing was one method that could be used to boost plant populations. In order to increase shallot (Allium ascalonicum L.) production and productivity on less-than-ideal ground, such as dry land in Jambi. This study aimed to examine the effects of various plant spacing on the growth and yield of shallots and to obtain plant spacing that provides the best shallot growth and yield. This research was conducted at the Teaching and Research Farm, Faculty of Agriculture, University of Jambi. The design used a   Randomized   Block   Design (RBD) consisting of four treatments with six replications. The treated plant spacing was:10 cm x 10 cm; 15 cm x 15 cm; 15 cm x 20 cm; and 20 cm x 20 cm. Various plant spacing affected the shallot growth and yield, and a plant spacing of 15 cm x 15 cm provided better growth and yield compared to any other plant spacing, with the number of leaves per plant, the weight of bulbs per clump, and the weight per bulb of 22, 49, 49.84, and 13.94 g   successively.
Pakcoy's (Brassica rapa L.) Response to the Provision of Liquid Organic Fertilizer in Polybags Budiyati Ichwan; Irianto Irianto; Eliyanti Eliyanti; Mapegau Mapegau; Zulkarnain Zulkarnain; Ikhbal Ikhbal
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 12 No. 2 (2023): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.12.2.2023.631

Abstract

This study aimed to examine the effect of Liquid Organic Fertilizer (LOF) in increasing the growth and yield of pakcoy, as well as obtaining LOF concentrations that provided the best growth and yields of pakcoy plants. It was conducted at the Teaching and Research Farm, Faculty of Agriculture, University of Jambi, 35 asl. The study used a Randomized Block Design with one factor, namely various LOF concentrations: 0ml/l; 5ml/l; 10ml/l, 15ml/l. Each treatment was repeated five times. The results showed that LOF application was able to increase the growth and yield of pakcoy plants in the form of plant height (4.94%–24.49%), number of leaves (4.63%–9.26%), leaf area (18.17%–46.12%), dry weight (50.98%–94.90%), and plant fresh weight (50.46%–102.60%). The LOF concentration of 10ml/l provided the best pakcoy growth and yield. The results of this study have just been able to produce a fresh weight of pakcoy 26%–33% of the potential pakcoy yield.