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Pengendalian Ulatgrayak (Spodoptera litura F.) dengan Ekstrak Ubi Gadung dan Ekstrak Buah Maja Darmanto, I Wayan; Supriyatdi, Dedi; Sudirman, Albertus
Jurnal Agro Industri Perkebunan Volume 7 No. 1, 2019
Publisher : Politeknik Negeri Lampung

Armyworm (Spodoptera litura F.) is one of the important polyphag leaf pests that attacks almost all crops. The objective of this study was to determine the effect of various concentrations of bioinsecticide made of dioscorea tuber and aegle fruit extract on larval mortality. The research was conducted at the crop laboratory, Lampung State Polytechnic since October 2017 until December 2017. The experimental design is a completely randomized design with six treatments and four and replications. The parameters observed is mortality of armyworm larvae, which would then be analyzed using fingerprint of different varieties. That result showed that dioscorea tuber and aegle fruit extract has affected on larval mortality armyworm. Pure (100%) dioscorin tuber extract exhibited the highest larval mortality. Keywords: aegle fruit, botanical insecticide, dioscorea tuber

Pengaruh Berbagai Jenis Pupuk Organik terhadap Spesies Gulma Invasif Hutapea, Christmayaty; Syofian, Mirodi; Sudirman, Albertus
Jurnal Agro Industri Perkebunan Volume 3 No. 1, Mei 2015
Publisher : Politeknik Negeri Lampung

The use of organic fertilizer is very instrumental to the growth and crop production, organic fertilizer can also improve soil fertility, as well as to maintain the ecosystem in the surrounding environment. In addition to providing the advantages of using organic fertilizer also has weaknesses when refining them in the process of making organic fertilizer is not good enough, potentially toxic to human health, likely to carry germs organic fertilizers, and weed seeds. This study aims to find out the weeds that dominated after the use of organic fertilizers and proving the existence of an invasive weed borne organic fertilizer. This research was carried out on open land Lampung State Polytechnic, using cow manure treatment (MS), goat manure (MK), fertilizer pome (MP), organic fertilizer factory (MB), and control (KT). This study uses a randomized block design (RAK). The observed results are weed vegetation analysis, percent weed cover, summed Dominance Ratio (SDR), and the community coefficient (C). research shows that after the application of organic fertilizers shift the dominant weed species, proving organic fertilizer bring invasive weed, and it turns organic fertilizer from the cow shed which led to the highest weed invasion.Keywords: invasive weeds, organic fertilizer, weed species shiftsPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/16

Pengaruh Pupuk Organik Padat dan Varietas pada Produktivitas Tebu (Saccharum officinarum L.) Ayu, Eka Risdianti Asmaning; Indrawati, Wiwik; Sudirman, Albertus
Jurnal Agro Industri Perkebunan Volume 5 No. 2, Oktober 2017
Publisher : Politeknik Negeri Lampung

Sugarcane is one of the main sugar-producing commodities in Indonesia. The one of the efforts to increase the production and yield of sugarcane can be done by fertilization using organic fertilizer and the use of improved varieties. The aim of this research are to get optimal rate of solid organic fertilizer, the best sugarcane variety, and interaction between solid organic fertilizer rate and variety on productivity of sugarcane. The study was conducted in December 2015 until December 2016 at Teaching Farm and Chemical Analysis Laboratory, State P olytechnic of Lampung. The research used Factorial Random Block Design method, with two factors. The first factor is the rate of solid organic fertilizer (Control, 1.000 kg.ha-1, 1.500 kg.ha-1, and 2.000 kg.ha-1), whereas the second factor is sugarcane varieties (GMP 3, GMP 19, and SS 57). The data of the research were analyzed by analysis of variance and if the result was significantly different then continued by using LSD test of 5% level. The results showed that there was interaction between the use of solid organic fertilizer 1000 kg.ha-1 and GMP 3 varieties on variable length of sugarcane stem. The productivity of sugarcane crops can be improved by the application of 1000 kg.ha-1 solid organic fertilizer which influences the variables of sugarcane quantity per lube and the number of sugarcane segments. The best variety that can be used to increase the productivity of sugarcane is GMP 3.Keywords: solid organic fertilizer, sugarcane productivity, sugarcane varieties

Respons Pertumbuhan Vegetatif Beberapa Varietas Tebu (Saccharum officinarum L.) terhadap Pemberian Mikoriza Arbuskular Prihartono, Agustinus; Sudirman, Albertus; Azis, Abdul
Jurnal Agro Industri Perkebunan Volume 4 No. 1, Mei 2016
Publisher : Politeknik Negeri Lampung

Sugarcane (Saccharum officinarum L.) is a major source of commercial sugar production. Sugar is a commodity that is essential for the people of Indonesia both as a basic requirement as well as industrial raw material of food or beverage. Sugar demand is increasing with population growth and increasingly diverse array of foods. This study aims to determine the effect of mycorrhizal appropriate biological fertilizer for vegetative growth of sugarcane varieties of GMP and its interactions. Research carried out in the experimental garden of the State Polytechnic of Lampung, from July to December 2014. The method used was a randomized block design (RBD) factorial pattern, consisting of two treatment factors. The first factor was the rate of biofertilizers mycorrhizae which consisting of four levels, namely: M0 = 0 g of biofertilizers mycorrhizae per polybag, M1 = 10 g of biofertilizers mycorrhizae per polybag, M2 = 20 g of biofertilizers mycorrhizae per polybag and M3 = 30 g of biofertilizers mycorrhizae per polybag. The second factor was the varieties of sugarcane consisting of three varieties, namely: V1 = GMP1, V2 = GMP2 and V3 = GMP3. The results were analyzed using analysis of variance then continued with test least significant difference (LSD) 5%. The results showed that the effect on the variety of plant height and number of tillers. Mycorrhizal treatments and their interaction does not give effect to all parameters.Keywords: mycorrhizae, Saccharum officinarum L., vegetative growthPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/32

Pengaruh Pupuk Organik pada Pertumbuhan Vegetatif Tanaman Tebu (Saccharum officinarum L.) Varietas GMP 2 dan GMP 3 Putra, Endriyana; Sudirman, Albertus; Indrawati, Wiwik
Jurnal Agro Industri Perkebunan Volume 4 No. 2, Oktober 2016
Publisher : Politeknik Negeri Lampung

The sugarcane (Saccharum officinarum L.) is the plant that worth high economical enough, because is the main raw material in manufacture of sugar. One of the efforts to increase the sugarcane production is applying organic fertilizer that can support the growth of sugarcane. The organic fertilizer is fertilizer that's mostly or entirely consist of organic material that from plants or animals that have through the decomposition process, it's can be solid or liquid which is used to supply organic material to improve the physical, chemical and biological soil. It's carried in the garden at Politeknik Negeri Lampung in September 2014 until January 2015. The experiment were performed using a randomized design group (RDG) factorial design which consists of two treatment factor is dosage of organic fertilizer and sugarcane varieties. The first was treatment dose of organic fertilizer that consists of 5 levels, it?s 0 kg.ha-1 (control), 500 kg.ha-1, 1000 kg.ha-1, 1500 kg.ha-1, and 2000 kg.ha-1. The second factor is a sugarcane varieties, it'sGMP 2 and GMP 3 varieties. The study aims to get the optimal dose of organic fertilizer (Ghaly Organik), the best sugarcane varieties and knowing the interaction between the treatmenton vegetative growth of sugarcane. The result showed that the optimal dose that was applied on GMP 2 and GMP 3 varieties is 1000 kg.ha-1. GMP 2 Sugarcane varieties have better vegetative growth as compare with GMP 3sugarcane varieties. There is not interaction that happened between treatment dose of organic fertilizer and sugarcane varieties.Keywords : organic fertilizer, sugarcane varieties, vegetative growthPermalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/44

Respons Viabilitas Benih Kopi Arabica (Coffea arabica) terhadap Pelumuran Jamur Trichoderma viride di Pre-nursery Sopiana, Emi; Tahir, Muhammad; Sudirman, Albertus
Jurnal Agro Industri Perkebunan Volume 6 No. 1, Mei 2018
Publisher : Politeknik Negeri Lampung

Indonesia is the fourth largest coffee producing country in the world after Brazil, Vietnam, and Colombia. This study aims to obtain an optimal rate of Trichoderma viride on coffee seed viability, to obtain the highest growth of Arabica coffee clones, and to obtain interaction between rate of Trichoderma viride and Arabica coffee clones on viability of coffee seeds. The research was conducted in Nursery Farm, State Polytechnic of Lampung from October to December 2016. This research use Factorial Randomized Block Design (RBD). The first factor was the Arabica coffee clone i.e. Sigarar Utang clone and S 795 clone.The second factor was the rate of Trichoderma viride fungi culture i.e.O0 (without Trichoderma viride fungi culture), O1 (100 g Trichoderma viride fungi culture), O2 (200 g of Trichoderma viride fungi culture), O3 (300 g of Trichoderma viride fungi culture). The variables observed included seed growth rate, germination rate, cotyledon rupture rate, hypocotyl height, hypocotyl diameter, normal sprouts, leaf area, root dry weight, and leaf dry weight. If there is a significant difference in ? 0,05, then the test is continue with the LeastSignificanceDifference test (LSD). The best treatment of Trichoderma viride fungi dosage was dosage 200 g can increase seed growth rate for 12 days, germination rate 80,28%, and hypocotyl height 7,15 cm.The highest clonal treatment in the Sigarar Debt clone can increase the height of hypocotyl of 7,15 cm and the leaf area of 14.39 cm2. Keywords: Arabica coffee seed, Trichoderma viride fungi culture, seed growth rate

Respons Pertumbuhan Vegetatif Tanaman Tebu (Saccharum officinarum L.) Ratoon 1 terhadap Pemberian Kombinasi Pupuk Organik dan Pupuk Anorganik Cahyani, Suci; Sudirman, Albertus; Azis, Abdul
Jurnal Agro Industri Perkebunan Volume 4 No. 2, Oktober 2016
Publisher : Politeknik Negeri Lampung

This research conduct to know vegetative growth response of sugarcane Ratton 1 to combination of organic fertilizer and inorganic fertilizer which comprises plant height, leaf length, stem diameter, number of tillers, leaf chlorophyll and N, P, K leaf total content. This research was conducted in September 2014 until February 2015 at State Polytechnic of Lampung teaching farm. The research was arranged in a factorial study using a randomized block design (RBD). The first factor is the four-level rate of organic fertilizer, namely: Oo = 0 kg.ha-1; O1 = 500 kg.ha-1; O2 = 750 kg.ha-1; O3 = 1000 kg.ha-1, and the second factor is three rate of inorganic fertilizer, namely A1 = 0%; A2 = 25%; A3 = 50% of recommended rate in Gunung Madu Plantations. The results showed that the effect of all treatments tested were not significantly affected on plant height, leaf length, stem diameter, number of tillers, and chlorophyll. The value of N obtained the highest results in the treatment rate of 500 kg.ha-1 organic fertilizer + organic fertilizer 50% instigation, the value of P highest rate treatment of 500 kg.ha-1 organic fertilizer + organic fertilizer 25% instigation, the value of K obtained the highest results in treatment rates 1000 kg.ha-1 organic fertilizer + 50% inorganic fertilizer recommendation.Keywords: inorganic fertilizers, organic fertilizer (organic Ghaly), ratoon 1Permalink: http://jurnal.polinela.ac.id/index.php/AIP/article/view/45

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