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INDONESIA
Jurnal Agrotek Tropika
Published by Universitas Lampung
ISSN : 23374993     EISSN : 26203138     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agrotek Tropika (JAT) is a journal of science in the field of agrotechnology which covers several fields of science such as Agronomy, Horticulture, Soil Science, and Plant Pests and Diseases. Journal of Tropical Agrotek published since 2013 and published three times in one year ie in January, May, and September. Journal of Tropical Agrotek published by Department of Agrotechnology, Faculty of Agriculture, University of Lampung in cooperation with Agroteknologi Association of Indonesia (PAGI) Lampung.
Arjuna Subject : -
Articles 20 Documents
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Search results for , issue "Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020" : 20 Documents clear
KERUSAKAN PASCAPANEN PADA UBI KAYU HASIL PEMULIAAN SELAMA PENYIMPANAN Heldiyanti, Rina; Sutrisno, Sutrisno; Khumaida, Nurul; Darmawati, Emmy
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (633.671 KB) | DOI: 10.23960/jat.v8i2.3620

Abstract

Postharvest deterioration is a major problem which is an obstacle for cassava handling both for conventional cassava variety and mutant variety. There are two types of postharvest deterioration on cassava, namely postharvest primary deterioration (PPD) or primer deterioration of physiological deterioration, and microbiological deterioration. Damage can be minimized by carrying out storage in optimal conditions. This study aimed to determine the level of postharvest deterioration on cassava variety R and U during 35 days of storage. The storage treatment was storage consist of 1) wooden boxes and moist sawdust storage (P1)  and  2)control storage (P2). The results indicated that RP2 and UP2  produced physiological deterioration by 25% on the 7th day of storage and reached 100% on the 35th day of storage. Meanwhile, the percentage of microbiological deterioration reached more than 20% on the 14th day of storage. On the other hand,  RP1 and RP2 indicated good results. Both varieties experienced only less than 25% physiological deterioration and did not experience microbiological deterioration during storage.
EVALUASI AKHIR GALUR HARAPAN KACANG PANJANG (Vigna sesquipedalis L. Fruwirth) POLONG UNGU Zulfarosda, Ratna; Damanhuri, Damanhuri; Waluyo, Budi; Kuswanto, Kuswanto
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (755.352 KB) | DOI: 10.23960/jat.v8i2.3580

Abstract

A Final Evaluation Of Expected Lines Of Yardlong Bean (Vigna sesquipedalis L. Fruwirth)  With Purple Pods. Evaluation toward expected lines yardlong bean purple pod ability conducted to obtain lines which have superiority in yield, yiled components and other traits. Evaluation was done by analyzed adaptation and stability test. Research towards 6 lines was conducted at 6 different locations based on altitude (the middle land and low land), condition areas (rainfall and temperature) as well as the conditions of cultivation (with and without mulch application). Adaptation and stability test provides information related to lines response of environmental condition for recommended cultivation on specific or all types environment. The results showed superiority pod weight per hectare of BU 1 (9,18 t ha-1) followed by BU 6 (8,81 t ha-1) and BU 4 (6,88 t ha-1). Those lines were broadly adaptive for all types of environments. Lines that adaptive in spesific environment, BU 2 (8,03 t ha-1) produced optimal yield on marginal environment, while BU 5 (10,03 t ha-1) adaptive at productive environment. Based on lines description, all lines have superiority of purple pod colored and specifically BU 3 had highest anthocyanins content.
PERTUMBUHAN DAN HASIL TIGA VARIETAS KEDELAI DI GAWANGAN DENGAN PEMOTONGAN UJUNG PELEPAH KELAPA SAWIT Effendy, Iqbal; Novianto, Novianto; Utami, Dia
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v8i2.3500

Abstract

Oil palm plantations in Indonesia are the largest one in the world, reaching 12.3 million hectares, around 46% are smallholders with very low productivity couse  income of oil palm farmers is very low. One effort to take over the problems is to develop an intercroping pattern of soybean- oilpalm  by trimming  the tips of the midribs of oil palm plants on thewider side of interspace of palm stand rows, to increase light interception accepted by soy bean  plant surfaces. This study used a randomized block design (RBD) arranged in factorial 4x3 with three replications. The first treatment is cutting the edge of the oil palm midrib, namely P1 = 50 cm, P2 = 100 cm, P3 =  150 cm. The second treatment was low light intensity tolerant soybean varieties, namely: V1 = Dena 1, V2 = Anjasmoro and V3 = Detam 1. Other actions were carried out according to generally accepted standards. To see the effect of treatment carried out the F test at the level of 5%, and continued with the HSD test at the level of 5% to see the difference among treatments. The results showed that a hope of developing soybean plants as intercrops, although statistically did not show a significant difference. FFB results were not significantly affected by the act of  trimming the midrib as 150 cm.
EFIKASI HERBISIDA PARAKUAT UNTUK PENGENDALIAN GULMA PADA BUDIDAYA KELAPA SAWIT (Elaeis guineensis Jacq) TANAMAN BELUM MENGHASILKAN Jatmiko Umar Sidik; Dad Resiworo Jekti Sembodo; Rusdi Evizal; Hidayat Pujisiswanto
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (615.722 KB) | DOI: 10.23960/jat.v8i2.3910

Abstract

Good plantation management is important to increase the productivity of immature oil palm plants, one of which is chemical weed control. This study aims to (1) determine the dosage of paraquat herbicide which is effective in controlling weeds in the area of immature oil palm plantations, (2) find out the differences in the composition of weed species on immature oil palm plates after application of the paraquat herbicide, (3) find out the phytotoxicity of paraquat herbicides in immature oil palm plants after the application of the paraquat dichloride herbicide. This research was carried out in the farmers' oil palm plantation in Jontor Village, Gayabaru District , Central Lampung Regency and Weed Laboratory of the Faculty of Agriculture, University of Lampung from November 2017 to February 2018. This research used a Randomized Block Design (RBD) with 4 replications and 6 treatments consisting dose of paraquat dichloride herbicide of 375g / ha, 500 g / ha, 625 g / ha, 750 g / ha, and mechanical weeding and without weed control (control). Homogeneity of the various data was tested by the Bartlett test, data additivity was tested by the Tukey test and the difference in the mean was tested with the Least Significant Difference (LSD) test at α 5 level. The result of the study showed that : (1) the herbicide paraquat dichloride dose of 375-750 g / ha effectively control weeds in total, weed leaf width of up to 8 week after application, weed grasses and weeds puzzle to 4 week after application, (2) the herbicide paraquat dichloride dose of 375-750 g / ha is effective in controlling Praxelis clematidea weeds up to 8 week after application, weed Ottochloa nodosa and Asystasia gangetica up to 4 week after application, (3) paraquate dichloride dosage levels 375-750 g / ha resulting in differences in weed composition at 4, 8 and 12 week after application , (4) dosages of 375 - 750 g / ha parakuat dichloride herbicides applied to dishes not poisoning immature oil palm plants.
ANALISIS PERTUMBUHAN, ASIMILASI BERSIH DAN PRODUKSI TERUNG (Solanum melongena L.): DOSIS PUPUK KANDANG KAMBING DAN PUPUK NPK Tengku Boumedine Hamid Zulkifli; Koko Tampubolon; Ahmad Nadhira; Yunida Berliana; Erfan Wahyudi; Razali Razali; Musril Musril
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (733.834 KB) | DOI: 10.23960/jat.v8i2.3784

Abstract

Growth, Net Assimilation and Yield Analysis of Eggplant(Solanum melongena L.): Dosage of Goat Manure and NPK FertilizerThe research was aimed to obtain the dose of goat manure, NPK fertilizer and the interaction in increasing the growth and yield of eggplant. The research was usedthe randomized block design factorial with the first factor (goat manure) such as K0= 0 ton.ha-1, K1= 10 ton.ha-1, K2= 20 ton.ha-1 and the second factor (NPK Mutiara 16-16-16) such as P0= 0 ton.ha-1, P1= 100 ton.ha-1, P2= 200 ton.ha-1, P3= 300 ton.ha-1 with three replications. This research was conducted at Jl. Eka Rasmi, Medan Johor Subdistrict, Medan, North Sumatra from August until October 2019. The parameters such as plant height, leaf area, fresh weight of root and shoot, dry weight of root and shoot, total dry weight, fruitweight.plant-1, fruit weight.plot-1, crop growth rate (CGR), relative growth rate (RGR), and net assimilation rate (NAR) wereanalyzed using the ANOVA and the means were followed by DMRT test at the level of 5% used the IBM SPSS Statistics v.20. The results showed an increase in leaf area, fresh weight of shoot, dry weight of root, dry weight of shoot, total dry weight, and fruit weight.plant-1, of eggplant plant with the increasing dose of goat manure up to 20 ton.ha-1of 23.27%; 35.85%; 17.64%; 16.55%; 16.66%; and 17.18%, respectively compared to untreated except plant height. Growth in leaf area, fresh weight of shoot, dry weight of root, dry weight of shoot, total dry weight, fruit weight.plant-1 and fruit weight.plot-1of eggplant plant were increased with increasing NPK fertilizer dosage up to 300 kg.ha-1of 16.88%; 25.96%; 24.08%; 38.37%; 34.46%; 21.85%; and 19.22%, respectively compared to untreated. The interaction of goat manure with NPK does not significantly affect on the growth and yield of eggplant plant. The CGR, RGR, and NARvalue in the giving of goat manure from 10 until 30 days after planting was higher compared to the application of Mutiara NPK fertilizer.
UJI KEMAMPUAN ISOLAT JAMUR Trichoderma spp. SEBAGAI ANTAGONIS Ganoderma boninense DAN PLANT GROWTH PROMOTING FUNGI (PGPF) Yohan Yogaswara; Radix Suharjo; Suskandini Ratih Dirmawati; Cipta Ginting
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.047 KB) | DOI: 10.23960/jat.v8i2.3904

Abstract

This study aims to determine the ability of Trichoderma spp. Isolate that collection of Biotechnology Laboratory, Faculty of Agriculture, University of Lampung as an antagonist againstGanoderma boninense and also its ability as a Plant Growth Promoting Fungi (PGPF). Testing of Trichoderma spp. as an antagonist include tests for growth, spore density, and viability. Testing of Trichoderma spp. as PGPF (Plant Growth Promoting Fungi) using cucumber plants F1 variety to obtain the ability of Trichoderma spp. in improving cucumber plant performance. The data obtained were analyzed by analysis of variance and further tested DMRT (Duncan's Multiple Range Test) at 5% level. The results showed that all isolates of Trichoderma spp.  can act as an antagonist againstGanoderma boninense. In the PGPF test, there were 3 isolates of Trichoderma spp. which showed the best performance as a plant growth promoting namely  L1, L5 and L10 isolates.  In addition, these isolates also have good antagonistic.
STABILITAS HASIL DAN ADAPTABILITAS KULTIVAR TEMBAKAU MAGETAN MENGGUNAKAN METODE EBERHART RUSSELL Ruly Hamida; Mala Murianingrum; Djumali Djumali
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (622.171 KB) | DOI: 10.23960/jat.v8i2.3789

Abstract

Magetan tobacco is one type of tobacco that has an important role in the kretek cigarette industry in Indonesia. Some tobacco varieties have been widely cultivated in the Magetan Regency, but the level of plant heterogeneity is quite high. The purpose of this study was to assess the yield, stability and adaptability of varieties that developed in Magetan Regency. The research material consists of 7 tobacco varieties, namely Rejeb 1, Rejeb 2, Rejeb 3, Rejeb 4, Rejeb 5, Rejeb 6, and Rejeb 7. Each variety was planted in a 12 m x 4.50 m plot with a spacing of 60 cm x 90 cm (100 plants / plot). This study used a randomized block design with three replications. The stability of the results was analyzed by the Eberhart and Russell methods. The results showed that Rejeb 4 cultivar gave the highest and stable yield of 598.89 kg / ha, higher than all cultivars tested. This is in line with the quality index and plant index values, where the Rejeb 4 variety gave the highest value in five test locations (63.65 and 38.34). Subsequently followed by cultivars Rejeb 3, Rejeb 2, and Rejeb 1 which have dynamic stability and adaptability values.
Respirasi Tanah Akibat Sistem Olah Tanah dan Aplikasi Mulsa In Situ pada Pertanaman Kacang Hijau (Vigna radiata L.) di Laboratorium Lapang Terpadu, Universitas Lampung Yuves Menti; Sri Yusnaini; Henrie Buchari; Ainin Niswati
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (635.245 KB) | DOI: 10.23960/jat.v8i2.3911

Abstract

Soil respiration is an indicator of the activity of microorganisms in the soil. The treatment of soil tillage system and the use of organic mulch given to the soil will affect the activity of soil microorganisms. The research aims to study the effect of soil tillage systems, application of in situ mulch, and the interaction between both in soil respiration. This research was conducted from April to July 2017 at the Integrated Field Laboratory, Faculty of Agriculture, University of Lampung, using a Randomized Block Design (RBD) factorially prepared with two treatment factors. The first factor is the soil tillage system (T), which consists of minimum tillage (T0) and conventional tillage (T1). The second factor is the treatment of mulch (M), which consists of no mulch (M0) and the application of in-situ mulch 5 t. ha-1 (M1). The data obtained were tested for various homogeneity by the Bartlett test and additivity by the Tukey test. Data were analyzed by analysis of variance and continued with LSD test at a 5% level. The relationship between soil temperature, soil moisture content, soil organic matter, and soil pH with soil respiration was tested by correlation test. The results showed that the soil tillage system and application of in-situ mulch had no significant effect on soil respiration, and there was no interaction between the soil tillage system and application of in-situ mulch in soil respiration on observations before tillage, 1 day after planting (HST), 41 HST, and 88 HST. There is no correlation between soil temperature, soil moisture content, soil organic matter, and soil pH with soil respiration on pre-tillage observations, 1 HST, 41 HST, and 88 HST.
PENGARUH LAMA PERENDAMAN PANGKAL SETEK DALAM LARUTAN NAA (NAPTHALENE ACETIC ACID) PADA PERTUMBUHAN SETEK LADA Syaicha Fachrun Nisa; Niar Nurmauli; Akari Edy; Sugiatno Sugiatno
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.563 KB) | DOI: 10.23960/jat.v8i2.3903

Abstract

Effect of soaking duration on base stem cuttings in NAA solution (Naphthalene Acetic Acid) on the growth of pepper The need for pepper is increasing along with the development of the food industry with the basic ingredients of pepper. The determining factor of the quality of pepper produced comes from the seeds used. This study aims to determine the effect of soaking DURATION on pepper cuttings (Piper nigrum L.) in the Napthaleneacetic Acid (NAA) solution. The study was conducted in October 2018 until February 2019 in the greenhouse and Plant Science Laboratory of the Faculty of Agriculture, University of Lampung, Bandar Lampung. This study uses a completely randomized group design (RKTS). The treatment of immersion base cuttings in NAA (N) solution concentrates 500 ppm consisting of : without NAA (n0), immersion 0 minutes (n1), soaked 15 minutes (n2), soaked 30 minutes (n3), soaked 60 minutes (n4), and soaked 120 minutes (n5). Homogeneity of variability between treatments was tested by Bartlet Test and data additivity was tested by Tukey test, then continued with Variance Analysis (ANARA). Comparison of the middle value with the orthogonal comparison test at α level of 5%. The results showed that: (1) giving NAA affected the number of roots in the book, the fresh weight of the roots in the book, the dry weight of the roots in the book, the total number of roots, and the total fresh weight of the roots; (2) administration of NAA by immersion is better than dipping in the number of roots in the book, the fresh weight of the roots in the book, the dry weight of the roots in the book, the total number of roots, and the total fresh weight of the roots; and (3) length of soaking cuttings in NAA solution has no effect on the growth of pepper cuttings.
PENGARUH SISTEM OLAH TANAH DAN PEMUPUKAN NITROGEN JANGKA PANJANG TERHADAP RESPIRASI TANAH DI LAHAN POLITEKNIK NEGERI LAMPUNG TAHUN TANAM KE-27 Erdiana Damayanti; Muhajir Utomo; Ainin Niswati; Henrie Buchari
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.994 KB) | DOI: 10.23960/jat.v8i2.3898

Abstract

Unsustainable cultivation techniques can cause carbon loss on farm.   The cultivation technique that is often used by farmers today is intensive tillage.  Intensive tillage can increase CO2. Steps to reduce CO2 gas emissions, while increasing carbon stored in the soil by implementing agricultural cultivation with conservation tillage system (Olah Tanah Konservasi). The conservation tillage system is able to reduce global warming through absorption of C in the soil, and reduce CO2 emissions. In addition, fertilization can also affect CO2 emissions. CO2 emissions in the soil come from soil respiration. The purpose of this study was to determine the effect of long-term tillage systems on soil respiration, determine the effect of long-term N fertilization on soil respiration, and determine the effect of interactions between tillage systems and long-term N fertilization on soil respiration. The study was arranged in a randomized block design (RBD) consisting of two factors, namely the tillage system and nitrogen fertilization factors. The first factor is the treatment of tillage system (T) namely T0 = no tillage, and T1 = intensive tillage, while the second factor is without nitrogen fertilizer (N0) and high nitrogen fertilizer (N1). The data obtained will be tested for homogeneity by Bartlett Test and additives tested by Tukey Test. Furthermore, the data were analyzed by analysis of variance and continued with a BNJ test of 5% level. Observation of soil respiration was done 4 times, namely -1, 1, 2, 3 days after tillage. The results showed that soil respiration one day before to three days after the soil was treated in intensive tillage (OTI) was the same as the no tillage system (TOT), soil respiration -1 days after tillage to 3 days after tillage on nitrogen fertilization (100 N kg ha-1 ) given in the previous planting season the same as without fertilization (0 kg N ha-1), and there is no interaction between the tillage system and nitrogen fertilization on soil respiration.

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