Article Per Year (5 Year)
p-Index From 2021 - 2026
1.978
P-Index
This Author published in this journals
All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Hortikultura Indonesia (JHI) Agrotrop : Journal on Agriculture Science Journal of Tropical Soils Jurnal Ilmu-Ilmu Pertanian Indonesia TERRA : Journal of Land Restoration Akta Agrosia
Merakati Handajaningsih
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science

Published : 30 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 30 Documents
Search

 1   2   3 
Pengaruh Kepadatan Populasi terhadap Pertumbuhan dan Hasil Blewah (Cucumis melo L. var. Cantalupensis) Rajagukguk, Natalia; Turmudi, Edhi; Handajaningsih, Merakati
Akta Agrosia Vol 20 No 1 (2017)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (851.71 KB)

Abstract

Blewah (C. melo var. Cantalupensis) is one specific type of melon with fresh and fragrance arome when the fruit is ripe.  Mostly the plant is grown in Java island of Indonesia.  There is no research-based  information about technique of cultivationof this plant, so this experiment was done to study population density to determine the optimal spacing for growth and yield of blewah.  The experiment has been implemented from February 2016 until May 2016 in the experimental field of the University of Bengkulu. This study used a complete Randomized Complete Block Design with different population density treatments i.e.: plant density of 4 plants per plot of 10 m2 (plant spacing 100 cm x 250 cm);  plant density of 6 plants per plot, (plant spacing 100 cm x 166 cm); plant density of 8 crops per plot (spacing of 100 cm x 120 cm); plant density of 10 plants per plot (plant spacing 100cm x 100 cm); plant density of 12 plants per plot (plant spacing 100 cm x 83 cm); plant density of 14 plants per plot (plant spacing 100 cm x 72 cm); and plant density of 16 plants per plot (plant spacing 100cm x 62 cm). Each treatment was repeated 3 times. The experiment showed that the optimal spacing for growing blewah was at population density 12 plants/10 m2 or 12,000 plant/ha, plant spacing 100 cm x 83 cm. This arrangement of plant yielded the length of  plant, the number of branches, the diameter of the fruit, the plant dry weight, the weight of the fruit per plot, and fruit thickness of 224.47 cm, 3.67, 9.61 cm, 22.15 g, 7044.80 g,  and 2.21 cm respectively.Keywords: blewah, Cucumis melo var. Cantalupensis, growth, plant density, yield 
Respon Pertumbuhan Stek Anggur (Vitis vinifera L.) terhadap Pemberian Beberapa Konsentrasi Ekstrak Bawang Merah (Allium ascalonicum L.) Utami, Tri; Hermansyah, Hermansyah; Handajaningsih, Merakati
Akta Agrosia Vol 19 No 1 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.432 KB)

Abstract

The purpose of this study was to determine the optimum concentration of shallot extract to the growth of grape cuttings grape cuttings. This study was conducted from September to December 2015 in the city of Bengkulu. This research used Completely Randomized Design with a single factor and five replications. Treatment concentrations of 0% (control), shallot extract concentration of 25%, 75% and 100%. The variables measured were the time to sprout, shoot height, the number of leaves, number of roots, fresh weight and dry weight of cuttings. The results showed that the concentration of shallot extract 100% concentration enhances the growth of grape cutting, time to sprout, and the concentration of extract 50% increase shoot height and number of leaves on grape cuttings.
Pertumbuhan dan Hasil Tanaman Selada pada Tiga Jenis Tanah Mineral dengan Pemberian Dosis Pupuk Kandang Sapi yang Berbeda Putra, Dian Pramana; Handajaningsih, Merakati; Riwandi, Riwandi; Fahrurrozi, Fahrurrozi
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.136 KB)

Abstract

Growing lettuce on lowland mineral soil is an alternative to increase lettuce production. Mineral soil with less fertile soil property needs additional organic matter when it is used as growing medium for lettuce plants . The purpose of this study was to evaluate the growth and yield of lettuce on some mineral soil types and different doses of cow manure. The research was conducted in Surabaya village, Sungai Serut District, Bengkulu City. The experiment used a completely randomized design, two factors, five replications. The first factor was the three types of mineral soils, consisted of Inceptisol, Ultisol and Entisol. The second factor was dose of cow manure, consisted of 0 ton/ha, 5 ton/ha (7.065 g/polybag), 10 ton/ ha (14.13g/polybag), and 15 ton/ha (21.19 g/polybag ). Each combination was repeated 5 times in order to obtain 60 experimental units. The results showed that the mineral Ultisol generally resulted in better growth of lettuce plants than it was at Inceptisol and Entisols, which were indicated by the higher degree of the leaf greenness leaves, root fresh weight and shoot fresh weight. Dosage of fertilizer up to 15 tonnes/ha significantly increased shoot fresh weight and root fresh weight of plants. The interaction between soil types and doses of cow manure occured only on the variable of root fresh weight when it was grown on Ultisol with dose of cow manure at 8.07 tonnes/ha.
Growth and Yield Response of Melon to Different Time Application of Goat Manure and Dose of Potassium Handajaningsih, Merakati; Marwanto, Marwanto; Armitasari, Tri; Inoriah, Entang; Pujiwati, Hesti
Akta Agrosia Vol 21 No 1 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (924.045 KB)

Abstract

Goat manure contains high potassium, thus it is expected to reduce  the usage of synthetic potassium fertilizer. Incubation of goat manure is needed prior to planting since the nutrients are slow release. The objective of the experiment was to find the best time application and dose of potassium on growth and yield of melon. Container experiment using polybags was set in Completely Randomized Design.  Goat manure were incorporated into soil at the time of transplanting (0 DBT), 5 days before transplanting (5 DBT), and 10 DBT. The dose of potassium was consisted of 0 kg/ha, 200 kg/ ha and 400 kg/ha. The treatments were repeated 3 times, each of which consisted of 4 plants. Growth and yield of plants showed no response to the interaction between the two factors of treatment. Single effect of time applicaton of goat manure 10 DBT affected leaf area (1619.51 cm2), fruit weight (872 g), fruit diameter (16.19 cm) and the thickness of edible fruit part (2.61 cm). The dose of potassium 400 kg/ha increased fruit sweetness to 8.20Brix.
Effects of Combined Application of Cow Manure And Inorganic Nitrogen Fertilizer on Growth, Yield and Nitrogen Uptake of Black Rice Marwanto, Marwanto; Nasiroh, Nasiroh; Mucitro, Bambang G.; Handajaningsih, Merakati
Akta Agrosia Vol 21 No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (704.577 KB)

Abstract

The beneficial effects of manure on soil properties, growth, and crop productivity have promoted its use for replacing the application of N fertilizer. However, it is not well understood to what extent N fertilizer was able to be substituted by cow manure. Accordingly, this pot experiment aimed to compare the effect of inorganic N fertilizer application alone with that of the combined use of inorganic N fertilizer with cow manure based on the same amount of total N on growth parameters, yield attributes, and nitrogen (N) uptake of black rice. The experiment was conducted under a screen house condition in Agriculture Faculty, Bengkulu University located at 15 meters altitude above sea level during the summer season of 2015. There were six treatments viz. T1 = 100% N from urea + 0% N from cow manure (0.52 g N + 0.00 g cow manure) pot-1, T2 = 80% N from urea  + 20% N from cow manure  (0.42 g N + 9.55 g cow manure) pot-1, T3 = 60% N from urea + 40% N from cow manure (0.31 g N  + 19.10 g cow manure) pot-1, T4 = 40% N from urea + 60% N from cow manure (0.21 g N + 28.65 g cow manure) pot-1, T5 = 20% N from urea + 80% N from cow manure (0.10 g N+ 38.20 g cow manure) pot-1, and T6 = 0% N from urea + 100% N from cow manure (0.00 g N  + 47.75 g cow manure) pot-1. The amount of inorganic N fertilizer in the form of urea and cow manure applied was calculated based on the recommended rate of 115.00 kg ha-1 for N fertilizer and 10.50 ton ha-1 for cow manure. These treatments were arranged in a Completely Randomized Design and repeated three times. The results showed that the treatments significantly (P ?0.005) affected growth parameters as measured by plant height, the number of leaves, fresh shoot weight, fresh root weight, dry shoot weight, dry root weight, yield attributes as determined by the total number of tillers, the total number productive tillers, grain yield per pot, and N uptake. The highest values for all these variables were obtained in the treatment receiving recommended rate of urea only (100% N from urea + 0% N from cow manure as equivalence) and the lowest in the treatment receiving a100% N from cow manure (0% N from urea + 100% N from cow manure). However, combined treatments of cow manure and inorganic N fertilizer such as 80% N from urea  + 20% N from cow manure, 60% N from urea + 40% N from cow manure 40% N from urea + 60% N from cow manure showed a parity statistically with the treatment receiving 100% N from urea only in maintaining the values for all these variables. Overall, the combined use of inorganic N fertilizer (urea) and cow manure as an equivalence promoted growth and yield of black rice by improving N uptake. Keywords: integrated nutrient management, soil chemical property, Nitrogen uptake, combined fertilizer application, black rice
Different Compost Materials Used as Source of Organic Matter in Production of Chili Pepper Sumbayak, Roy S.O.; Handajaningsih, Merakati; Hartal, Hartal; Marwanto, Marwanto
Akta Agrosia Vol 22 No 1 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (812.502 KB)

Abstract

Compost has been commonly used as the primary organic matter in organic plant production, especially in vegetable production.  Different sources of compost materials give different medium structures and chemical characteristics. The objectives of this research were: 1) to evaluate the response of growth and yield of chili pepper to a rate of compost and source of animal waste which were used as compost; 2) to determine the optimum rate of fertilizer for the highest growth and yield of chili pepper. The research was carried out from November 2015 until March 2016. Compost material treatments consisted of cow dung, empty palm oil bunches, and mixed of vegetable residue and weeds. The compost rate treatments consisted of 0 ton ha-1, 10 ton ha-1, 20 ton ha-1, and 30 ton ha-1. No interaction between the two treatments was found to influence plant growth and yield variables.   The type of compost materials affected plant height of 5, 6, and7 weeks after transplanting.  Cow dung as a source of compost showed the best effect in increasing chili plant height.  Plant height, the number of plant dichotomous, and plant canopy responded linearly  to the increase of the compost rate. The usage of compost at 20 ton ha-1 and 30 ha-1 resulted in higher fruit length, the number of fruit, and fruit weight per plant.   Keywords: chili pepper, compost, organic, growth, yield 
Manually Feed NPK Fertigation Improves Growth and Yield of Chili Pepper Hybrids in Ultisol Herison, Catur; Rustikawati, Rustikawati; Hasanudin, Hasanudin; Suharjo, Usman K.J.; Handajaningsih, Merakati; Nursalim, Nursalim
Akta Agrosia Vol 23 No 1 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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

Abstract

Extending the planting area to a less-fertile soil, such as Ultisols, become inevitable choice to increase the national chili pepper production in Indonesia as this types of soil is the largest part of dry land of Indonesia, about 29.7% or around 51 million ha.  However, efforts to increase its productivity by providing sufficient fertilizers application is most frequently inefficient because in the conventional fertilizer applications, broadcasted fertilizer on the soil bed, are not readily available for the plant as their solubility is limited under the plastic mulch and still in the form of granular until the end of planting season.  Fertigation, therefore, maybe the answer for this problem.  The objective of this study was to determine the best NPK fertigation method on four chili pepper hybrids.  The experiment was conducted in a randomized complete block design with three replication, and the treatments were arranged in a split plot design.  As the main plots were NPK fertigation intensity, i.e. 100%, 75%, 50%, 25% and 0% fertigation with the remnant fertilizers were circularly broadcasted surrounding the plant.  As the subplots were chili pepper hybrids, i.e. ‘Maxima’, H39, H14, and ‘UNIB CHR17’.  The results showed that there was no interaction effect of fertigation intensity indicated that all hybrid genotypes showed similar pattern of responses.  The H39 hybrid had better vegetative growth compared to other hybrids in term of plant height, dichotomous height, stem diameter, number of branches, plant fresh-weight.  Whereas the hybrid cultivar ‘Maxima’ showed the highest yield followed by H14 and cultivar ‘UNIB CHR17’.  The 100% fertigation was the best method of NPK fertilizer application for chili pepper in Ultisols.keywowrd: fertigation, chili pepper, fertilizer application, acidic soil
Bio-fortified Compost as A Substitute for Chemical N Fertilizer for Growth, N Accumulation, and Yield of Sweet Corn Marwanto, Marwanto; Wati, Shinta Puspita; Romeida, Atra; Handajaningsih, Merakati; Adiprasetyo, Teguh; Hidayat, Hidayat; Purnomo, Bambang; Murcitro, Bambang Gonggo; Siswanto, Usman
Akta Agrosia Vol 22 No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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

Abstract

ABSTRACTFinding the appropriate method of fertilizer application to simultaneously enhance farm productivity and ensure ecosystem sustainability has been receiving a lot of attention. A field experiment was carried in the Research Plot Agriculture Faculty Bengkulu University Campus Indonesia in 2017. The purpose of this study was (1) to assess the significant effects of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC) under equal N conditions on growth, N accumulation, and yield of sweet corn, and (2) to determine the appropriate level to which inorganic N fertilizer could be reduced and equivalently replaced by bio-fortified compost to promote sweet corn growth and yield. The treatments consisted of six different proportions of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC). Each treatment was designed on the basis of equal amount of total N input from a combination of both fertilizers (138 kg N ha-1).  They were arranged in a randomized block design with 3 replications. They included (1) 100% IF plus 0% BC, (2) 75% IF plus 25% BC, (3) 50% IF plus 50% BC, (4) 25% IF plus 75%, (5) 0% IF plus 100% BC, and (6) no IF and no BC. The results showed that the increasing proportion of IF replaced by BC resulted in an increase for all variables (except for plant height) but they decreased when 100% IF substitution with 100% BC was applied. Among the partial substitution treatments, 50% IF plus 50% BC consistently produced the best growth, N accumulation, and yield increase. Treatments of 50% IF plus 50% BC and 25% IF plus 75% BC produced the highest green cob weight with husk per plot (10.74 – 10.84 kg plot-1), which was 16% to 19% higher than treatment of 100% IF plus % BC. The three partial substitution treatments produced crop yield components as good as treatment of 100% IF plus 0% BC. Treatment of 0% IF plus 100% BC reduced plant growth, N accumulation, and crop yield and its components. The appropriate level to which IF could be reduced and equivalently replaced by BC was at the range of 25% to 75%. Hence, a suitable replacement of inorganic N fertilizer with bio-fortified compost is considered a reasoned way to simultaneously increase crop yield and reduce environmental degradation.Keywords: organic fertilizer, chemical fertilizer, bio-fortification, chemical fertilizer substitution, bio-fortified compost
Delivery of Arbuscular Mycorrhiza Fungus Spores via Seed Coating with Biodegradable Binders for Enhancement of the Spores Viability and Their Beneficial Properties in Maize Marwanto, Marwanto; Bustaman, Hendri; Handajaningsih, Merakati; Supanjani, Supanjani; Murcitro, Bambang Gonggo; Salamah, Umi
Akta Agrosia Vol 23 No 1 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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

Abstract

biodegradable polymer such as PVA is considered the most promising candidates for developing the sustainable sticker. The objective of this study was to determine the most suitable PVA + TS blends as adhesives agent for AMF spores inoculation via seed coating which can enhance the spores viability and their beneficial properties in maize. The polythene bag experiment was performed in a screen house of the Department of Plant Protection Faculty of Agriculture, University of Bengkulu Indonesia in 2015. Six adhesive blends were employed: 100% PVA + 0% TS, 75% PVA + 25% TS, 50% PVA + 50% TS, 25% PVA + 75% TS, 0% PVA + 100% TS, and no coating. The six experimental treatments were laid out in a completely randomized design with three replications. The results show that root colonization, AMF spore population, and shoot dry weight in 75% PVA + 25% TS were equal to those in 100% PVA. Root colonization, AMF spore population, shoot P content, and shoot P concentration were greater for 50% PVA + 50% TS than 100% PVA, 100% TS, and no coating. A mixture of 50% PVA + 50% TS was considered the preferred sticker. Thus, the tapioca starch can be used to substitute 25 - 50% of the PVA used without reducing AMF inoculant adhering to seed.Keywords: polymeric seed coating, seed coating formulation, arbuscular mycorrhizal fungi, sustainable coating adhesive, seed inoculation, seed inoculant
Growth and Yield of Lettuce (Lactuca sativa L.) by Giving Cow Manure and Empty Palm Oil Bunch Fertilizer on Peat Soil Manullang, Yedija; Herawati, Reny; Handajaningsih, Merakati; Ganefianti, Dwi Wahyuni; Haquarsum, Eka J.V.; Sutrawati, Mimi
Akta Agrosia Vol 23 No 2 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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

Abstract

Lettuce (Lactuca sativa L.) is a horticultural plant that is beneficial for health. Efforts are being made to expand the plant area. One of them is by utilizing marginal land such as peatlands.  Peatlands in Indonesia are the most extensive soils in various tropical countries in the world that have low soil fertility and high acidity so that they are not optimal for lettuce growth. The provision of organic material can increase soil fertility by improving physical, chemical, and biological soil properties so that it can support lettuce growth. This study aims to determine the dose of cow manure and the dosage of oil palm empty fruit bunch fertilizer and the optimal dose interaction for growth and yield of lettuce. This research was conducted from June 2019 to August 2019 in Bengkulu City. This study uses a Completely Randomized Design consisting of two factors, which are repeated three times. The first factor is the dose of cow manure with three levels, namely: 0 tons ha-1, 15 tons ha-1, and 30 tons ha-1. The second factor is the dose of oil palm empty fruit bunch fertilizer, which consists of four levels, namely 0 tons ha-1, 5 tons ha-1, 10 tons ha-1, and 15 tons ha-1. The results showed that the dosage of cow manure 15 tons ha-1 and without the application of empty fruit bunches fertilizer gave the best results in leaf length of 18.674 cm. The best dose of cow manure for growth and yield of lettuce is 15 ha-1. The application of OPEFB fertilizer has not been shown to affect the growth and yield of lettuce.
Co-Authors ,, Rustikawati . Hasanudin . Hasanudin . Riwandi . Riwandi A.A. Ketut Agung Cahyawan W Ali Munawar Ali Munawar Armitasari, Tri Atra Romeida Bambang Gonggo Murcitro Bambang Purnomo Bandi Hermawan Bustaman, Hendri Bustaman, Hendri Catur Herison Chiristiana Dedi Saputra Dwi Wahyuni Ganefianti Dwi Wahyuni Ganefianti, Dwi Wahyuni EDHI TURMUDI Eko Suprijono ENTANG I. SUKARJO Fahrurrozi Fahrurrozi Fahrurrozi Haquarsum, Eka J.V. Hartal, Hartal Hasanudin Hasanudin Hendri Bustamam Herison, Catur Hermansyah Hermansyah Hery Widijanto HESTI PUJIwATI Hidayat Hidayat Inoriah, Entang Joko Suharjo, Usman Kris Manullang, Yedija Marlin Marulak Simarmata Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto, Marwanto Mimi Sutrawati Mucitro, Bambang G. Muhammad Tegar Putra Bahari Murcitro, Bambang G Nabila, Athya Kania Nasiroh, Nasiroh NORMA LIDIAWATI Nursalim Nursalim Pratiwi Pratiwi Rajagukguk, Natalia Reny Herawati Resti , Cynthia Riwandi, . Riwandi, Riwandi Romadhan, Tantrie D Rustikawati Rustikawati Rustikawati Septiana Anggraini, Septiana Suharjo, Usman K.J. Suharjo, Usman Kris Joko Sumbayak, Roy S.O. Supanjani, Supanjani Supanjani, Supanjani Syakia Kurin, Aricha Teguh Adiprasetyo Tri Mauli, Emilda Tri Utami Umi Salamah Usman Siswanto Venti Novita Sari Viani, Reza Junita Okta Wati, Shinta Puspita Widodo Widodo