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All Journal AGROLOGIA : Jurnal Ilmu Budidaya Tanaman JURNAL BUDIDAYA PERTANIAN Tropical Small Island Agriculture Management
Herman Rehatta
Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Pattimura
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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The Effect Of Climate Change On Productivity Of Clove (Syzigium Aromaticum) In Haruku Island, Central Maluk Regency Imelda Jeanette Lawalata; Herman Rehatta; Semuel Leimaheriwa; Johana Audrey Leatemia
Agrologia Vol 12, No 1 (2023): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v12i1.1808

Abstract

The world trade history has recorded Maluku as a spice-producing region, including cloves. This commodity has high economic value and is the main source of income for farmers in several areas in Maluku Province. Climate is an environmental factor that also influences plant metabolism and physiology, so that changes in some elements of climate can have a negative impact on plant growth and productivity. The objective of this study was to get information regarding effect of climate variable on productivity of cclove in Haruku island, Central Maluku Regency. Data was collected by field srvey, while secondary data was gathered form related agencies. The results showed that the Haruku Island area with a local-unimodal rain pattern experienced an increase in annual rainfall of 11.8% in the period of 1991-2020 compared to the previous period (1961-1990). The rainy season rainfall (April-September) tends to increase by 15.2%, while the dry season rainfall (October-March) does not show a significant increase, namely only 1.3%. In the last 60 years (1961 – 2020) in the Haruku Island region, El-Nino extreme dry rainfall occurred 19 times. La-Nina wet extreme rainfall events occurred 14 times. Climate variables that affect production are the average annual length of solar radiation, the average annual relative humidity and the amount of annual rainfall
The Effect Of Concentration Of AB Mix Nutrition And Plant Media On Plant Growth And Results Green Sawis (Brassica rapa) With a System Substrat Hydroponics Herman Rehatta; Imelda J. Lawalata; Albertina Hiwy
Agrologia Vol 12, No 1 (2023): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v12i1.1653

Abstract

The research aimed to examine: 1) The effect of AB Mix nutrient concentration on the growth and yield of green mustard, 2) The effect of growing media on plants mustard greens under a substrate hydroponic system, 3) The interaction effect hydroponic nutrient concentration and growing media (cocopiet, husk charcoal and sand) under the substrate hydroponic system. The study used a two-factor randomized block design with three replications. Observation variables included: plant height, leaf number , leaf area, plant fresh weight, root length and root fresh weight. The results showed that the nutrient concentration treatment of AB Mix showed insignificant effects on the variables of plant height (42 Day After Planting), root length and root fresh weight but gave significant effects on leaf number (42 DAP), leaf area and plant fresh weight. The treatment of growing media and the interaction between nutrient concentrations of hydriponic nutrient and growing media showed insignificant results for all observed variables.
The Effect Of Weight and Soaking Of Tuber Cuttings In Cow Urine On Sprouting and Seedling Growth White Yam (Dioscorea alata L.) Julani Buton; Anthony Walsen; Herman Rehatta
JURNAL BUDIDAYA PERTANIAN Vol 18 No 2 (2022): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2022.18.2.97

Abstract

Research on the effects of seed weight and soaking of tuber cuttings in cow urine on sprouting and seedling growth white yam (D. alata L.). The research was aimed to obtain the optimal cutting weight and cow urine concentration on the speed of bud growth of the tuber cuttings. The research was carried out in February-April 2018, in the Greenhouse of the Faculty of Agriculture, University of Pattimura, Ambon. The research method used was a Randomized Block Design with a 4x3 factorial experiment with 3 replications so that there were 36 experimental units. The first factor tested was the weight of tuber cuttings, consisting of 4 treatment levels, i.e. 10-15 g, 20-25 g, 30-35 g, 100-105 g. The second factor was the concentration of fresh cow urine, consists of 3 treatment levels, i.e. at concentration of 0%, 15% and 30%. The results showed that the weight of 100-105 g as a control gave the best results on the number of buds, the number of shoots formed, shoot length (cm2), leaf area (cm2), number of leaves, net assimilation rate (g/cm2/week), plant growth rate (g /cm2/week), root length (cm) and number of roots. Cow urine treatment at 30% concentration produced the best seed growth compared to 15% concentration and 0% (without urine treatment). The use of tuber cutting weighing 10-15 g produced seedlings that could develop into productive plants.
The Effect of Biological Organic Fertilizers on the Growth and Yield of Pagoda Mustard (Brassica narinosa) Gelvin Kakisina; Herman Rehatta; Imelda J Lawalata
JURNAL BUDIDAYA PERTANIAN Vol 19 No 1 (2023): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2023.19.1.69

Abstract

The use of chemical fertilizers on vegetable mustard by farmers is currently higher than the use of organic fertilizers. The use of proper organic fertilizers is an alternative to reducing the dose of chemical fertilizers to increase yields of pagoda mustard. This study aimed to determine the effect of biological organic fertilizers at various treatment doses on the growth and yield of pagoda mustard. This study was conducted in the Greenhouse of the Faculty of Agriculture, Pattimura University, from May to July 2019. It was carried out using single factor experiment in a Randomized Block Design, with biological organic fertilizer dose treatment, consisting of 6 levels: 0 ml/l, 5 ml/l, 10 ml/l, 15 ml/l, 20 ml/l, and 25 ml/l per container. The observed variables consisted of plant height, number of leaves, leaf area, crown fresh weight, root fresh weight, crown dry weight, and crown diameter. Data were analyzed statistically and further tested using Duncan's test with a level of 5%. The results showed that the treatment of biological organic fertilizers had a very significant effect on the observed variables of root fresh weight. The fertilizer dose significantly affected the observed variables of leaf number (28 and 35 days after planting, dap, ie after the plants were removed from the nursery), plant leaf area, crown fresh weight, crown dry weight, and plant crown diameter, but had no significant effect on the observed variables of plant height (14 and 21 dap) and number of leaves (14 and 21 dap).
Respon Tanaman Selada (Lactuca sativa L.) Terhadap Pemberian Pupuk Organik Urine Kambing Budianto Hitimala; Herman Rehatta; Jeanne I Nendissa
Tropical Small Island Agriculture Management Vol 3 No 2 (2023): Tropical Small Island Agriculture Management
Publisher : Pattimura University Ambon Maluku Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/tsiam.2023.3.2.87

Abstract

This study aims to determine the response of lettuce plants to the application of goat urine organic fertilizer. The study was a Complete Randomized Design with 1 factor 4 repeats. The results showed that the concentration of goat urine organic fertilizer showed that K4 treatment (200 mL concentration) on the parameters of plant height (cm), number of leaves (strands), leaf area (cm2), fresh weight of plants (g), fresh weight of roots (g), and harvest index gave the highest yield on lettuce plants followed by other treatments such as K5 (Concentration 250 mL), K6 (Concentration 300 mL), K7 (Concentration 350 mL), K3 (Concentration 150 mL), K2 (Concentration 100 mL), K1 (Concentration 50 mL) and the lowest of the parameters above corresponds to K0 (without control). The concentration of organic fertilizer from goat urine significantly influences the K4 treatment. This shows that this concentration can provide the nutrients needed to support optimal vegetative growth of lettuce plants.
Co-Authors A. P Manuhuttu A.M. Kalay Abraham Talahaturuson, Abraham Albertina Hiwy Andhini Siti Fatiha Anna Y. Wattimena Anthony Walsen Anthony Walsen Budianto Hitimala Dessy A Marasabessy Elizabet Kaya Falmi Tupamahu Gelvin Kakisina Henry Kesaulya Henry Kesaulya Imelda Jeanette Lawalata J.J.G Kailola Jane I Nendissa Jean Jean Nendissa Jeanne I Nendissa Johana Audrey Leatemia Julani Buton Karim Lamawulo L. Gomies Laimeheriwa, Semuel Marthen Marthen N Riry Primarine R Tahapary Reginawanti Hindersah Safril H Sopalauw V. L Tanasale