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Pengaruh Sistem Irigasi terhadap Produksi dan Kualitas Organoleptik Tembakau Eko Sulistyono; , Sudradjat; M. H. Bintoro; Gatot Irianto
Indonesian Journal of Agronomy Vol. 34 No. 3 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.897 KB) | DOI: 10.24831/jai.v34i3.1297

Abstract

The objective of this research was to study the effect of irrigation system on production and organoleptic quality of tobacco. The treatments were conventional irrigation, drip irrigation with mulch and drip irrigation without mulch.  Conventional irrigation was the irrigation system that was usually applied by farmer.  Plastic pipe was used for conveying water from water resource to field, and the irrigation was given twice a week. Drip irrigation was given once in two days. Drip irrigation with mulch resulted higher sun cured leaf weight and water used efficiency than conventional irrigation, but it was not significantly different compared with drip irrigation without mulch.  Drip irrigation without mulch resulted 5.505 ton/ha of sun cured leaf and water use efficiency as much as 3.4 g of sun cured leaf/kg of water.  Organoleptic quality resulted by three irrigation systems were mild to medium, fairly smooth and low irritant.   Key words :  Drip irrigation, mulch, water use efficiency, organoleptic quality, tobacco  
Analisis Pencapaian Produktivitas Pemetikan Pucuk Sebagai Dampak Agrowisata Di Kebun Teh Gunung Mas, Bogor Lili Dahliani; , Sudradjat; Hadi Susilo Arifin
Indonesian Journal of Agronomy Vol. 34 No. 3 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.654 KB) | DOI: 10.24831/jai.v34i3.1300

Abstract

The objective of the research was to study the impact of agro-tourism on production of tea bud. The experiment was conducted at Gunung Mas Tea Plantation, Bogor, from June 2004 to March 2005. Blocks 3, 5, 8, 10 and 17 at Gunung Mas I afdeling represented area with agro-tourism activity and blocks 3, 7, and 10 at South Cikopo I afdeling represented area without agro-tourism activity. Site selection was based on plant variety, age of cutting, tea walk track (0, 4, 6, and 10 km), and elevation height (800, 900, and 1000 m above sea level). The result shows that agro-tourism activity decreases production of tea bud. When the number of visitors increased, production of tea bud decreased because the pluckers were absent during the plucking time. The positive impacts of agro-tourism are improvement in plantation management, especially in productive plants, and existing additional income. Gunung Mas Tea Plantation especially Gunung Mas I afdeling which runs agro-tourism should limit the number of visitors and there must be a cross subsidy from agro-tourism to agro-industry sectors.   Key words :  Agro-tourism, productivity of tea shoots, afdeling, plucking.
Perbaikan Pertumbuhan dan Kualitas Tanaman Lidah Buaya di Tanah Gambut dengan Aplikasi Mikoriza Arbuskula dan Pemupukan Iwan Sasli; Sudirman Yahya; , Sudradjat; Yadi Setiadi; , Sudarsono
Indonesian Journal of Agronomy Vol. 36 No. 3 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (167.658 KB) | DOI: 10.24831/jai.v36i3.1384

Abstract

This research was aimed at studying the effectiveness of  mycorrhiza, inorganic and organic fertilizer (fish and shrimp waste) on growth, yield and quality of Aloe in peat soil. The study was conducted on peat area, North Pontianak, West Kalimantan. Mycorrhizal application levels (without mycorrhiza, Mycofer and mycorrhizal from pineapple's rhizosphere) were as main-plot. The inorganic fertilizer (composition of N:P:K:Mg) rates (without inorganic fertilizer;  5 : 4 : 7.5 : 2.5 g/plant;  10 : 8 : 15 : 5 g/plant; and  20 : 16 : 30 : 10 g/plant) were as sub-plot.  Organic fertilizers: (fish; shrimp; fermented fish; and fermented shrimp wastes) were as sub-sub plot. The observed variables were: leaf width, leaf length, leaf fresh weight, plant dry weight, and nutrient uptake (N, P, K, Mg). The results showed that mycorrhizal application improved growth performance and increased N, P, Mg uptake. The best plant growth performance was achieved by N : P: K : Mg  =10 : 8 : 15 : 5 g/plant and fermented shrimp waste treatments.  The highest  N, P, K, Mg nutrients uptake was achieved by application of fermented organic  fertilizer.  Combination of mycorrhiza from pineapple's  rhizosphere with fermented fish and shrimp waste resulted in higher amino acids content compared to standard cultivation of  Aloe vera Center in Pontianak.   Key words:  Aloe vera, arbuscular mycorrhiza, inorganic fertilizer, organic fertilizer