Herman Rehatta
Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Pattimura

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 15 Documents
Search

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 %.
Kajian Produktivitas Tanaman Pala (Myristica sp.) di Kecamatan Kairatu Barat Kabupaten Seram Bagian Barat Herman Rehatta; Anna Y. Wattimena; Falmi Tupamahu
JURNAL BUDIDAYA PERTANIAN Vol 12 No 1 (2016): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Nutmeg crop (Myristica sp.) is one of the local specific commodity in Maluku, besides cloves and already well-known as spice crop. However, problems often faced by farmers are the decline of productivity due to factors such as the age of nutmeg tress, the absence of fertilization, bad plant spacing, minimal control of weeds and pests, and lack of availability of seed technology. This research was conducted in the region of western Kairatu Sub-District, Western Seram District, ie. in the villages of Kamal, Nuruwe, and Lohiatala. The purpose if this study was to determine the productivity of nutmeg in the region. The process of collecting data in the field was conducted by using a survey method. The results showed the number of plants in the Nuruwe village were more than in Kamal and Lohiatala villages with various plants spacing.
PENGARUH MEDIA TANAM DAN KONSENTRASI PUPUK ORGANIK CAIR TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN SELADA MERAH (Lactuca sativa L.) Karim Lamawulo; Herman Rehatta; Jane I Nendissa
JURNAL BUDIDAYA PERTANIAN Vol 13 No 1 (2017): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2017.13.1.53

Abstract

Planting media and concentration of liquid organic fertilizer were the main components that play a role as a medium to grow plants and nutrients supply for the red lettuce. To obtain appropriate planting medium and concentration of liquid organic fertilizer for growth and production of red lettuce plant, an experiment was conducted using Randomized Block Design Factorial, i.e Liquid Organic Fertilizer concentration with 6 treatment level, K0 (Without Treatment), K1 (POC 5 cc/L) (POC 20 cc/L), K4 (POC 20 cc/L) and K5 (POC 25 cc/L) and Planting Media with 3 levels i.e, M1 (3:1), M2 (4:1) and M3 (5:1). The concentration of liquid organic fertilizer gave very significant effects to the height parameters of plant (cm), number of leaves (leaf), leaf area (cm2), fresh weight of crown (g) and fresh root weight (g). Planting media had very significant effects on fresh root weight (g), ratio of root and canopy (%) and harvest index (%).
Produktivitas Cengkih Hutan (Syzygium obtusifolium L.) di Kecamatan Leihitu Kabupaten Maluku Tengah Herman Rehatta; Dessy A Marasabessy; Safril H Sopalauw
JURNAL BUDIDAYA PERTANIAN Vol 15 No 1 (2019): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2019.15.1.31

Abstract

Clove trees (Syzygium obtusifolium L.) have a significant role in supporting efforts to increase state revenue. The purpose of this study was to obtain a productivity data of the forest clove in the Leihitu Sub-district, Central Maluku District, from a case study in Hitu Lama, Hitu Mesing, Mamala, and Morela villages. The research method used was a survey method. The results showed that variations in the yield level in each study location were influenced by the factor of the proportion of immature trees, productive trees, and damaged old trees. The average productivity of forest clove in the study location was 5603.5 kg/ha or equivalent to 5.6 tons/ha. Keywords: forest clove, production, productivity, tree conditions ABSTRAK Tanaman cengkih (Syzygium obtusifolium L.) mempunyai peranan yang cukup besar dalam menunjang upaya peningkatan pendapatan negara. Tujuan penelitian ini adalah untuk mendapatkan data produktivitas cengkih hutan di kecamatan Leihitu Kabupaten Maluku Tengah, dari studi kasus di desa-desa Hitu Lama, Hitu Mesing, Mamala, dan Morela. Metode penelitian menggunakan metode survey. Hasil penelitian menunjukkan adanya variasi tingkat produksi pada masing-masing lokasi penelitian, dipengaruhi oleh faktor proporsi tanaman belum menghasilkan, tanaman menghasilkan, dan tanaman tua rusak. Menunjukkan rata-rata produktivitas cengkih hutan di lokasi penelitian adalah 5603,5 kg/ha atau setara dengan 5,6 ton/ha. Kata Kunci: cengkih hutan, produksi, produktivitas, kondisi tanaman
Pengaruh Aplikasi Biostimulant terhadap Pertumbuhan dan Produksi Selada (Lactuca sativa L.) Primarine R Tahapary; Herman Rehatta; Henry Kesaulya
JURNAL BUDIDAYA PERTANIAN Vol 16 No 2 (2020): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2020.16.2.109

Abstract

Lettuce is a type of vegetable that is very popular with the people of Indonesia. It contains healthy nutrients including minerals, vitamins, antioxidants, potassium, iron, folate, carotene, vitamin C and vitamin E. Biostimulants has the ability to stimulate new root formation, improve plant root systems, increase the number of tillers, and increase yield. Biostimulant concentration and site of administration play a role in providing nutrients for the needs of lettuce plants. To obtain the right concentration and place of administration for the growth and yield of lettuce, the experiment was carried out using a 2-factor Randomized Block Design. The first factor was the concentration of biostimulants (K) with 6 levels of concentration including: K0 (without giving biostimulants), K1 (giving biostimulants at a concentration of 1 mL/L of water), K2 (giving of biostimulants at 2 mL/L of water), K3 (giving biostimulants at 3 mL/L of water). K4 (giving biostimulant at 4 mL/L water), K5 (giving biostimulant at 5 mL/L water). The second factor was the site of administration (T), namely: T1 (through the leaves) and T2 (through the soil). The interaction between biostimulant concentration and administration gave a very significant effect on leaf number, crop fresh weight, root length and root number. Biostimulant concentration (K) gave the percentage of plant growth in the variables of plant height (34.29%) and leaf area (47.34%). Place of administration (T) gave percentage of plant growth the variables of leaf area (21.08%) and root wet weight (0.52%). The interaction of biostimulant concentration and administration place (K x T) gave the percentages of plant growth variables of leaf number (15.5%), plant fresh weight (52.33%), root dry weight (2.30%), root length (16.53%), and root number (108.5%). The best treatment in this study was the provision of biostimulant at a concentration of 2 mL/L of water that was given through leaves. Keywords: administration place, biostimulant, concentration, growth and production, lettuce ABSTRAK Selada merupakan jenis sayur yang sangat digemari oleh masyarakat Indonesia serta mengandung nutrisi yang sehat, yang meliputi mineral, vitamin, antioksidan, potassium, zat besi, folat, karoten, vitamin C dan vitamin E. Biostimulan mampu merangsang pembentukan akar baru, memperbaiki sistem perakaran tanaman, memperbanyak jumlah anakan, dan meningkatkan produksi tanaman. Konsentrasi biostimulan dan tempat pemberian merupakan interaksi yang berperan dalam menyediakan unsur hara bagi kebutuhan tanaman selada. Untuk memproleh konsentrasi dan tempat pemberian yang tepat bagi pertumbuhan dan produksi tanaman selada, dilakukan percobaan dengan menggunakan Rancangan Acak Kelompok 2 faktor. Faktor pertama adalah pemberian biostimulan (K) dengan 6 taraf konsentrasi meliputi: K0 (tanpa pemberian biostimulan), K1 (pemberian biostimulan dengan konsentrasi 1 mL/L air), K2 (pemberian biostimulan 2 mL/L air), K3 (pemberian biostimulan 3 mL/L air), K4 (pemberian biostimulan 4 mL/L air), K5 (pemberian biostimulan 5 mL/L air). Faktor kedua adalah tempat pemberian (T), yaitu: T1 (melalui daun) dan T2 (melalui tanah). Interaksi konsentrasi biostimulan berpengaruh sangat nyata terhadap variabel jumlah daun (helai), bobot segar tanaman (g), panjang akar (cm) dan jumlah akar (helai). Pada konsentrasi biostimulan (K) memberikan persentasepertumbuhan tanaman pada variabel tinggi tanaman (34,29%) dan luas daun (47,34%), Tempat pemberian (T) memberikan persentasepertumbuhan tanaman pada variabel luas daun (21,08%), bobot basah akar (0,52%), serta interaksi konsentrasi biostimulan dan tempat pemberian (KT) memberikan persentasepertumbuhan tanaman pada variabel jumlah daun (15,5%), bobot segar tanaman (52,33%), bobot kering akar (2,30%), panjang akar (16,53%), serta jumlah akar (108,5%). Perlakuan terbaik dalam penelitian ini adalah pemberian biostimulan konsentrasi 2 mL/L air dan diberikan melalui daun. Kata Kunci: biostimulan, konsentrasi, pertumbuhan dan produksi, selada, tempat pemberian,
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.