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

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Journal : AGROLOGIA : Jurnal Ilmu Budidaya Tanaman

 1 
Pengaruh Konsentrasi Pupuk Hayati Bioboost Terhadap Peningkatan Produksi Tanaman Selada (Lactuca sativa. L) A. P Manuhuttu; Herman Rehatta; J.J.G Kailola
Agrologia Vol 3, No 1 (2014)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v3i1.256

Abstract

Lettuce (Lactuca sativa L.)is one of hleafy vegetables that have high economic value in Indonesia and it gives good benef its ton the con sumers.The us of organic fertilizers is expected to be more optimal in agriculture today, considering the impact that the use of inorganic fertilizers may damage the soil and increasing environmental pollution with chemical residues in the soil, which result in decreased land productivity. This study aimed  to determine the effect of Bioboost fertilizer to increase crop yield of lettuce. Treatment were arranged in a Randomized Block Design, with one factor namely the concentration of Bioboost fertilizer consisting of 7 treatments:  B0=0 cc (control), B1= 20 cc, B2= 40 cc, B3= 60 cc, B4= 80 cc, B5=100 cc  per liter of water, and B6 = 120 cc / liter of water, with 3 replications so that there were 21 experimental units. Each treatmental unit consisted of 8 plants so that overall there were 168 plant populations. These results indicated  that concentration of Bioboost bio-fertilizers gave a significant effects on the growth of lettuce. Fertilizer cencentration of 80 cc / liter of water (B4) was the best concentration for growth and increased yield of lettuce.
Pengaruh Pupuk Organik Cair Ri1 Terhadap Pertumbuhan Dan Produksi Tanaman Kubis Bunga (Brassica oleracea var. botrytis L.) L. Gomies; Herman Rehatta; Jean Jean Nendissa
Agrologia Vol 1, No 1 (2012)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v1i1.294

Abstract

Research on the effects of RI1 liquid organic fertilizer on the growth and yield of broccoli (Brassica oleracea L. var. botrytis) has been conducted in Negri Hatalai, Subdistrict of Leitimur Selatan, Ambon. This study was done from January to April 2011. The objective of this study was to obtain optimal concentration of RI1 liquid organic fertilizer for growth and flower yield of broccoli. This research used Randomized Block Design with one factor, consisting of six treatments and three replications. Concentration of RI1 liquid organic fertilizer treatments consisted of 0 ml/0.5 l or without organic fertilizer, 1 ml/0.5 l., 2 ml/0.5 l., 3 ml/0.5 l., 4 ml/0.5 l and 5 ml/0.5 l.  The observation data were analyzed using Analysis of Variance and followed by Tukey HSD at a level of 5%. The results showed that the liquid organic fertilizer RI1 did not give significant effects on plant height, stem diameter, time of flower formation, time of flowers opening, flower diameter and weight, but gave significant effects only on leaf number and leaf area at a concentration of 2 ml/0.5 l.
Pengaruh Perlakuan Pencelupan Dan Perendaman Terhadap Perkecambahan Benih Sengon (Paraserianthes falcataria L.) Marthen Marthen; Elizabet Kaya; Herman Rehatta
Agrologia Vol 2, No 1 (2013)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v2i1.273

Abstract

In developing productive forests, seeds play a crucial role. The seeds of forests tree have physical condition of hard seed coat, especially Leguminoceae family. Silvicultural techniques that can overcome seed coat dormancy are dyeing and submersion of seeds. The knowledge and experience in breaking seed dormancy of Sengon (Paracerianthes falcataria L.) is rare, therefore it is necessary to study how to overcome seed dormancy. The objective of this study was to determine the effect of dyeing and submersion treatments to overcome seed dormancy of Sengon seed to improve its viability. This research used Completely Randomized Design (CRD) with two factors: namely Seed (Factor A), dipped in hot water at 60 º C for (A0 = Control, A1 = 2 minutes, A2 = 4 minutes, A3 = 6 minutes), Factor B, seeds soaked in cold water: (B0 = control, B1 = 6 hours of soaking, B2 = 12 hours, B3 = 18 hours, B4 = 24 hours). The parameters observed were germination percentage, germination rate and vigor index. The results showed that among all parameters observed the interaction of factors A1B2, A2B2 and A3B2 were the best treatment for germination percentage which was equal to 100 percent, the best germination rate of 3.897 days and the best vigor index of 27.02
Application of Different Fertilizers Type and Concentration on Growth and Yield of Pakcoy (Brassica Rapa L.) in Hydroponic System Andhini Siti Fatiha; Anthony Walsen; Herman Rehatta
Agrologia Vol 11, No 1 (2022): 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.v11i1.1537

Abstract

Nutrition is an important factor for pakcoy cultivation in a hydroponic system so that the growth media should contain appropriate concentration of micro- and macronutrient to support plant growth. This study has been done to determine the different effect of the different liquid organic fertilizer type and concentration compared to AB Mix fertilizer on the growth and yield of pakcoy grown with the Hydroponic System. The experiment was conducted by using completely randomized design consisting of 9 combination treatments of type and concentration of liquid fertilizer.  The treatments were AB Mix Fertilizer with a concentration of 10 ml/l, 12 ml/l, 14 ml/l; Meroke Liquid Fertilizer with a concentration of 16 ml/l, 18 ml/l, 20 ml/l; and Nasa Liquid Organic Fertilizer with a concentration of 5 ml/l, 10 ml/l, 15 ml/l. The results showed that the application of 20 ml/l of Meroke liquid fertilizer significantly increased plant height, number of leaves, leaf area, plant fresh weight, and plant dry weight compared to another treatments. However it did not affect root length.
Pengaruh Berbagai Komposisi Bokashi Ampas Biji Kakao Dan Pemberian Em4 Yang Berbeda Terhadap Pertumbuhan Dan Produksi Tanaman Petsai (Brassica chinensis L.) N Riry; Herman Rehatta; V. L Tanasale
Agrologia Vol 2, No 2 (2013)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v2i2.268

Abstract

Lettuce vegetable has high economic value and have a good prospect to increase famers income. Bokashi is organic fertiliser that can be used to increase the plant growth and production. The purpose of research were to investigate the influence of all sorts of bokashi composition of composted cocoa kernel and different doses of EM4  on the growth and production of lettuce. The research materials were lettuce germ that have attained the age of two weeks. The treatments were statistically designed with two factors and three repetitions. The treatments consisted of without bokashi (B0/control), B1=25 %, B2=50 %, B3=75 %, B4=100 % and EM4 (E0=control), E1=5ml/l water, E2=10ml/l water, E3=15ml/l water. The result showed that bokashi influenced significantly on the growth of lettuce. Level of bokashi 100 % was the best treatment, as measured from the height of the plant growth, leaf wide, fresh weight of crown and fresh weight of root, while the number of leaf was better at treatment of bokashi level 75 %.
Application of Biofertilizer Consortium of Strain Bacillus sp with Different Concentrations and Aplication Methods on Growth of Nutmeg Seeds (Myristica fragrans Houtt) A. Marthin Kalay; Henry Kesaulya; Abraham Talahaturuson; Herman Rehatta; Reginawanti Hindersah
Agrologia Vol 9, No 1 (2020): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v9i1.1060

Abstract

The growth of nutmeg seeds requires adequate nutrition by mechanism of bacteria activity associated with roots and leaves. The aim of study was to determine the effect of application of bacillus strain consortium biofertilizer on nutmeg seedlings. The experiment was arranged by using completely randomized design with 0% of PBH as control, and 0.15% and 0,30% of PBH concentration by spraying to leaves and by pouring in the soil around the stem, respectivelly. The results showed that the application of 0.15% and 0.30% of PBH concentration has significant effect in plant height, shoot dry weight, dry weight root and plant dry weight, but not at the number of root, root length, stem diameter, and the ratio of shoot and root dry weight of nutmeg seedlings after four month planting in the polybag. The concentration of PBH 0.30% has a greater influence on the nutmeg seed growth, and can be a solution to increasee  seed growth. 
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.
Co-Authors A. P Manuhuttu A.M. Kalay Abraham Talahaturuson, Abraham Albertina Hiwy Andhini Siti Fatiha Anna Y. Wattimena Anthony Walsen Anthony Walsen Dessy A Marasabessy Elizabet Kaya Falmi Tupamahu Henry Kesaulya Henry Kesaulya Imelda Jeanette Lawalata J.J.G Kailola Jane I Nendissa Jean Jean 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