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All Journal Planta Tropika Composite: Jurnal Ilmu Pertanian
Purwanto Purwanto
Department of Agrotechnology, Faculty of Agriculture, Jenderal Soedirman University
Agriculture, Biological Sciences & Forestry Veterinary

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Growth And Yield Of Lettuce (Lactuca sativa L.) Under Organic Cultivation Mujiono Mujiono; Suyono Suyono; Purwanto Purwanto
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 5, No 2 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2017.073.127-131

Abstract

This research was aimed to know selected assemblies of technology in organic lettuce cultivation based on liquid organic fertilizer and selected botanical pesticide.  It used a Complete Randomized design (CRD) with two treatments and 16 replicates.  The treatments were P1 (goat manure + SO-Kontan LQ soil Liquid Organic Fertilizer (LOF) (6 ml/l) + combined SO-Kontan Fert leaf LOF (6 ml/l) + maja-gadung botanical pesticide (6%) + biological agent Trichoderma harzianum (10 g/plant) and P2 (goat manure + SO-Kontan LQ soil LOF Lq (6 ml/l) + combined SO-Kontan Fert leaf LOF (6 ml/l) + maja-gadung botanical pesticide (6%) + bamboo leaves + biological agent Trichoderma harzianum (10 g/plant).  Results of the research performed that the P2 assembly was more superior than P1 for all variables of growth and yield, except the green color of leaves.  The technology assembly in the organic lettuce cultivation based on LOF and selected botanical pesticide was the P2 (goat manure + SO-Kontan LQ soil LOF Lq (6 ml/l) + combined SO-Kontan Fert leaf LOF (6 ml/l) + maja-gadung botanical pesticide (6%) + bamboo leaves + biological agent of Trichoderma harzianum (10 g/polybag) resulted in the productivity of 87.17 g per plant.
Karakter Agronomis dan Fisiologis Tanaman Kopi Robusta (Coffea canephora) pada Dataran Tinggi di Kecamatan Pejawaran Kab. Banjarnegara Duando Rizki; Bambang Rudianto Wijonarko; Purwanto Purwanto
Composite: Jurnal Ilmu Pertanian Vol 2 No 1 (2020): Februari
Publisher : University of Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/composite.v2i1.168

Abstract

The agronomic characteristics of Robusta coffee plants are influenced by several factors, one of which is altitude. Robusta coffee can grow optimally at an altitude of 400-1,000 meters above sea level with a temperature of 21-24 °C. Pejawaran sub-district is known as a mountainous area with a height of 900-1600 m above sea level. This research was conducted in July to September 2019 in the coffee garden of Sarwodadi Village, Pejawaran District, Banjarnegara Regency. The selection of research sites was carried out by conducting a survey where 3 altitudes were selected that had a greater number of coffee plants. The research sites include 1,100 m asl, 1,200 m asl and 1,350 m asl, plant samples taken are 10% of the total plant population. Variables observed included chlorophyll a, chlorophyll b, stomata opening, stomata density, plant height, stem diameter, number of productive branches, number of bunches per plant and yield per plant. The results showed that the altitude of 1,100 m asl has chlorophyll content, the number of bunches per plant and yield per plant is better than the other heights of 20.95 mg / g, 8.64 mg / g, 113 and 6.64 kg. The chlorophyll content of a and b is positively related to the number of bunches. Stomatal openings are significantly positive for the number of productive branches. Plant height was negatively related to productive branches and number of bunches. Stem diameter is positively related to the number of bunches. The number of productive branches is positively related to the results.
Co-Authors Bambang Rudianto Wijonarko Duando Rizki Mujiono Mujiono Suyono Suyono