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INDONESIA
Agrotech Journal
Published by Universitas Sembilanbelas November Kolaka
ISSN : 25485121     EISSN : 25485148     DOI : Prefix 10.31327
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The focus and scope of Agrotech Journal cover five disciplines: Plant Disease, Horticulture, Soil Science, Agronomy and plant breeding.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 106 Documents
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Assessment of Soil Damage for Biomass Production in Slope Area Used as Agricultural Land in Tanggetada District, Kolaka Regency La Mpia; Musadia Afa; Murni Handayani; Juniaty Arruan Bulawan
Agrotech Journal Vol 7, No 2 (2022): Agrotech Journal
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v7i2.1869

Abstract

This study aimed to assess the soil degradation level for biomass production in sloping areas used as agricultural land. This research was conducted in Tanggetada District, Kolaka Regency. This research was conducted using a field survey method with a slope class approach which is used as agricultural land with a slope of 8-15%, 15-25%, 25-45%, and 45%. The results of the study show that the status of soil damage in sloped areas used as agricultural land in Tanggetada District, Kolaka Regency, for slope classes 8-15%, 15-25%, and 25-45% included in the lightly damaged category while slope classes 45% included in the moderately damaged category. The limiting factors for soil damage status at this location are surface rock, microbial count, bulk density, permeability, and redox
FERMENTATION OF WHEY WASTE AS ORGANIC LIQUID FERTILIZER "PUCAFU" Muhammad Akhsan Akib; Henny Setiawati
Agrotech Journal Vol 2, No 2 (2017): Agrotech Journal (ATJ)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v2i2.277

Abstract

Whey waste contains organic materials, particularly high complex proteins and amino acids in the form of suspended and dissolved solids, however the utilization of whey as a organic liquid fertilizer still has a less attention. Thus the Utilization of the whey waste through anaerobic process to be used as a organic liquid fertilizer is the purpose of the research. This research was conducted using factorial design with completely randomized design (CRD) which consists of two factors: the yeast concentration (without yeast; 0.25 and 0.50 g/500 ml of whey waste) and the fermentation time (0, 3, and 5 days). The variables measured were the content of organic C, C/N Ratio, and Total N, P2O5 and K2O contents. The results showed that the fermented whey waste on the different fermentation time and yeast concentration had increased the organic C and C/N ratio, but decreased P2O5 and K2O contents. The utilization of whey combined with solid or other liquid wastes gave a chance to produce a quality organic liquid fertilizer 
Characteristics of Soil Fertility Affecting the Rice Fields Productivity in Bogor Regency Yunus Arifien; Sari Anggarawati
Agrotech Journal Vol 4, No 2 (2019): Agrotech Journal (ATJ)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v4i2.1083

Abstract

The purpose of this study was to determine the parameters of soil fertility in rice fields and the effect of soil fertility on paddy productivity in Bogor Regency. This research was conducted in the districts of Cileungsi, Darmaga and Leuwiliang, Bogor Regency. The location selection was done deliberately based on the location of rice production facilities with Ciherang and Inpari varieties. Sampling was conducted at several sampling points at each location. Each sub-district was taken 8 samples or 24 in total, then analyzed in the laboratory. Data processing using multiple regression with a dummy. The results showed that the soil in Bogor Regency was generally acidic, where soil fertility characteristics with organic C content were low to moderate, nitrogen was very low to moderate, P was low to high, K was very low to moderate, CEC was moderate to high, and saturation bases (KB) are moderate to high. Soil biology, namely total bacteria, total fungi, total solvent P bacteria, Azotobacter sp., And Rhizobium sp. Are generally low to moderate. Variable characteristics of soil fertility in the form of organic C, Nitrogen (N), K2O HCl 25%, and CEC significantly influence rice productivity. Soil fertility in the three districts is almost the same and does not affect the productivity of rice fields. While the productivity of rice fields with Inpari varieties is higher than those grown by Ciherang varieties. To increase the productivity of rice fields in Bogor Regency, it is recommended to plant Inpari variety rice by applying N fertilizer
Effect of Giving Tofu Dregs Bokashi on Phosphate Dynamics in Ultisols Alisa Norhalimah; J. Jumar; Nukhak N.S
Agrotech Journal Vol 7, No 1 (2022): Agrotech Journal
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v7i1.1718

Abstract

Ultisols are soil types that are poor in nutrients, one of which is element P, where this nutrient is needed by plants in large quantities. In Ultisols, P nutrients are bound by Al, so the availability of P nutrients for plants is low. Giving organic matter is one way to speed up the process of soil amelioration. Tofu waste is organic waste that contains nutrients and can be used as organic fertilizer that can help improve soil nutrients. Tofu dregs contain organic N, P, K, Ca, Mg, and C, which have the potential to increase soil fertility. This study aims to determine the effect of tofu pulp bokashi application on the dynamics of phosphate in Ultisols soil and to obtain the best dose of tofu pulp bokashi on the availability of phosphate in Ultisols soil. The method used in this study was a 1-factor Completely Randomized Design (CRD) with 6 (six) levels of treatment with 3 (three) replications in order to obtain 18 experimental units. Treatment P0 was without giving bokashi, P1 was P fertilizer 200 kg.ha-1, P2 was bokashi tofu dregs 12 t.ha-1, P3 was bokashi tofu dregs 24 t.ha-1, P4 was bokashi tofu dregs 12 t.ha-1 and fertilizer P 200 kg.ha-1, P5 namely bokashi tofu dregs 24 t.ha-1 + fertilizer P 200 kg.ha-1. The results of this study showed that the administration of tofu dregs bokashi had a significant effect and the best dose was obtained for increasing pH and available P by giving bokashi tofu dregs 24 t.ha-1 and P fertilizer 200 kg.ha-1. The best dose to reduce Al-dd is by giving bokashi tofu dregs 24 t.ha-1 and P fertilizer 200 kg.ha-1
ESTIMATION OF GENETIC PARAMETERS, CORRELATION, AND GENETIC RELATIONSHIP OF TOMATOES GENOTYPE IN LOWLAND Marlina Mustafa; Muhamad Syukur; Surjono Hadi Sutjahjo; Sobir Sobir
Agrotech Journal Vol 1, No 1 (2016): Agrotech Journal (ATJ)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v1i1.193

Abstract

The cultivation of tomato in lowland experience many obstacles, such as low produvtivity. One effort to increase tomato productivity  in lowland is through selection of tomato genotype for high yield and yield component  in lowland. This study aims to determine the variability based on genetic information, heritability and correlation of characters as well as the yield components of tomato genotypes relationship patterns in the lowlands. A Randomized Complete Block Design was used to characterization base on best genotype of yield component character, genetic variability, broad sense heribility and correlation to yield. Genotype of tomato tested had diverse characteristics. Best genotypes based on the yield character is IPB T1, based on the number of fruit per plant is IPBT30, based on the fruit length and day to flowering is IPB T74, based on the fruit diameter is IPB T73 and fruit thickness is IPBT60. Wide genetic diversity has a high heritability. Number of fruit per plant, fruit length, fruit diameter, and fruit thickness has a wide genetic diversity and high heritability. Yield characters has a narrow genetic diversity and heritability is low. Characters that have a direct impact on the yield are the fruit diameter. Based on the cluster analysis, tomato genotypes are grouped into five groups. Group I consists of seven genotypes (IPBT1, IPBT58, IPBT60, IPBT64, IPBT78, IPBT80 and IPBT82), group II consists of one genotype (IPBT74), group III consists of three genotypes (IPB T13, IPB T73 and IPB T86), group IV consists of five genotypes (IPBT3, IPBT33, IPBT43, IPBT53, and IPBT3) which is characterized by fruit thickness, fruit length and days to flowering, and group V consists of one genotype (IPBT30).
Phenotypic Performance of Kanesia-10 Cotton (Gossypium hirsutum L.) Variety Through the Use of Liquid Organic Fertilizers in Low Land Mayasari Yamin; Rahman Hairuddin; Nining Triani Thamrin; Eka Suddartik
Agrotech Journal Vol 4, No 1 (2019): Agrotech Journal (ATJ)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v4i1.917

Abstract

The program of cotton variety improvement is carried out by increasing the productivity and quality of fiber in order to rise the competitiveness of cotton farming through the production of fiber quality that is in accordance with the demand of export-oriented national textile industry. This study aimed to determine the performance of the Kanesia-10 cotton phenotype cultivated using liquid organic fertilizer in the lowlands and obtain the best concentration of liquid organic fertilizer in improving Kanesia 10 cotton performance. This research was conducted in Experimental Farm of the Faculty of Agriculture of the University of Cokroaminoto Palopo from August to November 2018. The genetic material used was Kanesia 10 cotton variety for its fiber content of 27.2%, production of 2.457,2 kg cotton seed per hectare and fiber uniformity of 83,3-84,6%. This study used a randomized block design consisting of five treatments and four times. The treatment used was control (P0), 50 ml/L POC of gamal leaves (P1), and 100 ml/L of gamal leaves (P2) 150 ml/L POC of gamal leaves (P3), and 200 ml/L POC of gamal leaves (P4), so that there were 20 experimental units. The use of liquid organic fertilizer produces heterogeneous phenotypic performance for the parameters of the number of fruits per plot with a diversity coefficient value reaching 32.93%. The treatment of liquid organic fertilizer with a concentration of 50 ml / L resulted in the performance of plant height, number of leaves, number of fruits per plot, and the best fruit weight per plot with a mean of 64.13 cm, 57.75 strands, 43.00 fruits and 7.60 g, respectively
Growth and Production of Mustards on Various Compositions Growing Media and Types of Fertilization R. Rahmawati
Agrotech Journal Vol 6, No 1 (2021): Agrotech Journal
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v6i1.1564

Abstract

This study aimed to determine the effect of composition of growing media and types of fertilization on the growth and production of mustard plants. This study was carried out at the Experimental Garden of Uniprima-Sengkang from February to April 2020, using a randomized block design with two treatment factors, namely the growing media consisting of soil (control), manure + soil (1: 1), bokashi + soil ( 1: 1), and soil + manure + Bokashi (1:1:1) and fertilization, namely: without urea and Azotobacter, urea 50 kg ha1 (0.2 g/plant), Azotobacter, urea 50 kg ha-1 (0.1 g/plant+ Azotobacter). The results showed that the composition of the growing medium Soil + Manure + Bokashi (1:1:1) and fertilization with ½ Urea 50 kg ha-1 (0.1 g/plant) + Azotobacter tended to show higher result in the parameters of plant height, number of leaves, leaf width and plant weight than other treatments, however, it statistically showed no interaction between the composition of the growing media and fertilization
Soybean Adaptation to Water Stress on Vegetative and Generative Phases Andi Safitri Sacita; Tania June; I. Impron
Agrotech Journal Vol 3, No 2 (2018): Agrotech Journal (ATJ)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v3i2.843

Abstract

Soybean is rich in protein and is one of the main sources of vegetable protein which essential in enhancing public nutrition. Climate change is the main trigger of the occurance of extreme weather events makes plants become more vulnerable to drought. Drought stress significantly affect the decline in soybean production, especially when it occurs during the reproductive phase. This research aimed to identify the response of soybean  to water stress as a reference for determining the adaptive and tolerant varieties. The research was arranged in split-split plot design, with main plot was varieties (Dering and Argomulyo), the development phase (vegetative and  generative phases) as the subplot, and water stress in the form of irrigation intervals (2, 5, and 10 days) as the sub-sub plots. The results showed that water stress during the vegetative phase has not statistically significant effect on soybean production. Soybean crop adapted  to water stress by reducing the number of leaves, the leaf area, stomatal openings, as well as doing motion response by folding leaves. This crop adaptation mechanisms affecting the formation of dry matter quantity, seeds yield, water use efficiency, and radiation use efficiency
Character Selection and Tolerance Screening Efectivity on Static Hydroponic Method Under Drought Stress in Rice N. Nasaruddin; Muh Farid Bdr; Yunus Musa; Hari Iswoyo; muhammad Fuad Anshori; Andi Isti Sakinah; Muh. Arifuddin; Adinda Asri Laraswati; Ardian Reski Handayani
Agrotech Journal Vol 5, No 2 (2020): Agrotech Journal
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v5i2.1349

Abstract

This research was aimed to evaluate the efectivity of screening method and identification of tolerance screening selection character in statis hydroponic system towards drough stress. The research was carried out in Hydroponic Screenhouse Perdos Unhas, Tamalanrea, Makassar which throughout February-April 2020. This research was conducted in factorial design in nested patterns, where environment was the nested replication. Environments used were normal (0% PEG) and drought stress (10% PEG). Five rice varieties were used: Inpari 34, Ciherang, IR29 and Jeliteng. Research result showed that canopy height and fresh weight were the suitable selection character in drought tolerance screening through statis hydroponic cultivation. Grouping consistency was found between drought and salinity stress. Inpari 34, Ciherang, Jeliteng and Inpari 29 was considered to be have drought tolerance, whilst IR29 was examined to be responsive to drough stress in hydroponic culture. From the overall result, it can be concluded that hydroponic screening and PEG application was quite effective in rice drought stress tolerance screening
Growth and Production of Several Corn Varieties at Various NPK Fertilizer Dosages Yunus Musa; Muh. Farid BDR; Hari Iswoyo; Ahmad Fauzan Adzima; Nur Qalbi Zaesar M; Arna Larasati
Agrotech Journal Vol 7, No 2 (2022): Agrotech Journal
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v7i2.1875

Abstract

Increasing corn production in Indonesia is one of the government's concerns to ensure the strengthening of food towards self-sufficiency. Improvement of fertilization methods and the use of superior varieties are parts of the intensifications to increase crop productivity. The purpose of this study was to determine the effect of NPK fertilizer doses, types of varieties, and their interactions on the growth and production of corn. This study was conducted from July to October 2022 at Bajeng Cereal Research Center (KP) Experimental Garden, Bajeng Sub-district, Gowa District, South Sulawesi at 27.2 m asl, specifically 5o18'21.5” S, 119o28' 38.6” E. The study used a split-plot design with fertilizer doses N:P: K as the main plot (P), namely N:P: K 60% = 120:90:60, N:P: K 80% = 160:120:80, N:P: K 100% = 200:150:100, N:P: K 120% = 240:180:120, and N:P: K 140% = ‎‎280:210:140. The varieties were used as subplots (V), namely Sinhas 1 (V1), Jakarin 1 (V2), Nasa 29 (V3), JH 36 (V4), ‎Bisi 18 (V5), ADV (V6), and Pioner ( V7). The results of the study showed that the combination of the fertilizer doses of N:P:K 100% = ‎‎200:150:100 with Pioner variety (P3V7) obtained the highest average yield of ‎11.81 t. ha-1 among other combinations of N:P: K fertilizer doses with varieties 

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