Jurnal Agroekoteknologi
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PENGARUH KETINGGIAN TEMPAT TERHADAP KANDUNGAN GIZI DAN ASAM OKSALAT PADA PELEPAH DAUN TALAS BENENG YANG TELAH DIBUDIDAYAKAN DI SEKITAR KAWASAN GUNUNG KARANG
Full text linkTalas beneng (Xanthosoma undipes K. Koch) is the local taro from Mountain Coral of Banten Province. This research was aimed to know the nutrient content, composition, oxalic acid and mineral content in the stem leaves of Talas Beneng are cultivated by the community at different places. The research was carried out from Maret until May 2017. This research was conducted in the form of field research around the area of Mountain Coral, Pandeglang Regency, Banten Province. Analysis of the stem leaves of Talas Beneng was done in PT. Saraswanti Indo Genetech, Bogor. The results showed that the content of proksimat stem leaves of Talas Beneng was cultivated include water, ash, protein, fat and carbohydrates. Moisture content at a higher altitude 200 m above sea level (asl): (93.90%) compared to the height of 400 m dpl (93.22%) and height of 800 m dpl (92.72%). Ash content at altitudes of 800 m asl was higher (0.73%) compared to the height of the 200 m asl (0.58%) and height of the 400 m asl (0.58%). Protein content at altitudes of 200 m asl was higher (0.48%) compared to the height of the 400 m asl (0.22%) and height of the 800 m asl (0.39%). Fat content at altitudes of 200 m asl, height of the 400 m asl and height of the 800 m asl is 0%. Carbohydrate content at altitudes of 800 m asl was higher (6.19%) compared to the height of the 200 m asl (5.04%) and height of the 400 m asl (5.98%). Content of oxalic acid (0.228%) at an altitude of 800 m asl higher than the height of the 200 m asl (0.195%) and the height of the 400 m asl (0.169%).Keywords: Elevation, Proximate, Oxalic acid, Talas benen
KARAKTERISASI BATANG DAN DAUN TANAMAN AREN DI KABUPATEN PANDEGLANG, SERANG, DAN LEBAK
Full text linkABSTRACTSugar Palm (Arenga pinnata Merr,) has a high economic value and has the potential to be exported and can be processed into a variety of food and non-food products. Sugar palm is a multipurpose tree because all parts of the tree can be used, such as stems, palm sap, leaves. Characterization of local palm trees had been carried out in Pandegelang, Serang, and Lebak Regencies (Banten Province) which were used as making nursery material to make better sugar palm in the future (superior varieties). This study used a survey method based on guidelines for plantation germplasm management from the Indonesian Plantation Research and Development Center. The results showed the diversity of stems and leaves of palm trees in the three districts. The diversity of stem phenotypes on sugar palm was seen in the height and circumference of the stem. Diverse appearance of palm leaves seen in the length and circumference of the ptiole, the length of the rachis, the length and width of the leaflets. The study conclude that the accessions used in this study showed variations in the appearance of stems and leaves from the accessions of palm trees observed
SMARTFERTI, SISTEM PAKAR PEMUPUKAN KELAPA SAWIT BERBASIS ANDROID
Full text linkABSTRACTKnowledge of good fertilization for oil palm on smallholder farmers is still limited.The availability of fertilizer knowledge both from primary sources and in theliterature as a secondary source, does not make it easy for farmers. An expert system is built in the form of a mobile application to implement the available knowledge base to provide fertilizer recommendations. The oil palm fertilization expert system in this research is called SmartFerti. SmartFerti is developed with a reasoning approach using a forward chaining method. The application design is based on the type of nutrients, planting density (stand per hectare, SPH), land area, type of fertilizer, and location. SmartFerti was built using 8 knowledge bases collected from reputable sources which were processed to obtain conclusions. SmartFerti provides fertilizer recommendations which include doses per semester and application time for 11 provinces in Indonesia. Nutrients that can be recommended include nitrogen, phosphorus, potassium, calcium, and magnesium. SmartFerti fertilization expert system uses an android-based interface built using App Inventor 2,0 (www,appinventor,mit,edu)
EFIKASI PESTISIDA NABATI DALAM PENGENDALIAN PENYAKIT ANTRAKNOSA PADA TANAMAN CABAI (Capsicum annum L.)
Full text linkABSTRACTChili grows well both in lowland and highland, and as a high economic vegetable chili is widely grown by farmers. Nevertheless, there are still many obstacle in its management among others is pest and disease attack. Antracnose disease by Colletotrichum sp. causes yield decrease even harvest failure as it attacks the fruits. The objective was to find out kinds of biopesticides and its concentration to control antracnose disease. The experiment was conducted in Faculty of Agriculture garden from July until February 2017. A Randomized Block Design was used consisted of 9 treatments i.e. A (control), B (1% soursop extract), C (2% soursop extract), D (1% siam weed extract), E (2% siam weed extract), F (1% galangal rhizome extract), G (2% galangal rhizome extract), H (1% mixture of soursop, kirinyuh, and galangal rhizome extract), and I (2% mixture of soursop, siam weed, and galangal rhizome extract). The results that the efficacy of application of 1% to 2% extracts of soursop leaf, siam weeds, and galangal rhizome, both independently and in mixture, were in the range of ineffective and less effective categories in controlling antracnose disease on red chilli
PENGARUH BOKASHI KOTORAN SAPI DAN PUPUK FOSFAT TERHADAP MUTU FISIOLOGIS BENIH KEDELAI (Glycine max L. Merill) KULTIVAR GROBOGAN
Full text linkThe most important increasing productivity soybean in physiological quality of seed. There for, soybean cultivation also improving soil quality for increase yield and seed quality. This research was aimed to obtain the best combination doses of bokashi cattle manure and phosphate fertilizer on yield and seed quality. This research was held at Faculty of Agriculture Padjadjaran University experimental garden in Sumedang regency and Seed Technology Labotary from November 2016 to Februari 2017. The design that used in this research was Randomized Completely Block Design and Scott-Knott at 5% rate. Treatment used in this research were Grobogan cultivars with tested combinations doses bokashi 0 t ha-1, 16 t ha-1, 32 t ha-1 and 48 t ha-1, each combined with (SP-18) doses 0 kg ha-1, 16 kg ha-1, 32 kg ha-1 and 48 kg ha-1 which were repeated three times. The result of experiment indicated significantly for weight 100 grains and quality of seed. This experiment suggested that dosage of 48ton/ha bokashi cattle manure and 32 kg ha-1 phosphate fertilizer in the best combinations of soybean crop.Keywords: Bokashi, Phosphate fertilizer, Physiological quality, Soybean see
OPTIMALISASI MUTU KRISAN POT DENGAN BENIH VARIETAS KRISAN POTONG MENGGUNAKAN ZAT PENGATUR TUMBUH PACLOBUTRAZOL DAN DAMINOZIDE
Full text linkABSTRACTThe purpose of this study was to obtain the concentration and frequency of giving the right plant growth regulator to produce compact chrysanthemum pot with a lot of flower production and good quality plants and flowers by using chrysanthemum cut flowers as seeds. The research was designed using a Randomized Block Design consisting of two factors. The first factor is a plant growth regulator concentration consisting of 10 ppm paclobutrazol, 20 ppm paclobutrazaol, 30 ppm paclobutrazol, 40 ppm paclobutrazol, 40 ppm paclobutrazol, 50 ppm, daminozide 2500 ppm, daminozide 5000 ppm. The second factor is the frequency of plant growth regulator consisting of three levels, namely one time giving, two times giving and three times giving. The results showed the higher the concentration of plant growth regulator andthe frequency of plant growth regulator, accordingly reduced the plant height, number of flower stalks, number of flower buds, flower bud diameter and plant crown diameter. Application of Paclobutrazol 10 ppm with one time giving a moresimultaneously and compact plant height compared to the use of 2500 ppmDaminozide, although the production of flower stalks and fewer buds
RASIO TAJUK AKAR TANAMAN MELON (Cucumis melo L.) PADA MEDIA TANAM DAN KETERSEDIAAN AIR YANG BERBEDA
Full text linkThe research was aimed to determine the response of root-shoot ratio of melon (Cucumis melo L.) on planting medium and different water availability. The research was conducted for three months starting from July until September 2017 at Greenhouse of Agriculture and Marine of Cilegon City. The experimental used Randomized Completely Design as factorial with 2 factors. The first factor was planting medium consisted of 3 levels ie 100 % soil medium, compost medium 100%, and soil medium + compost 1: 1. The second factor was water stress consisted of 4 levels ie without water stress, water stress interval every 3 days, water stress interval every 6 days, and water stress interval 9 days. The results showed that the root-shoot ratio was influenced by reduced water availability and medium planting. The longer the water delivery interval decreased the root-shoot ratio of melon.Keywords: Root-shoot ratio, Planting medium, Water defici
PERTUMBUHAN DAN HASIL KACANG HIJAU (Vigna radiata L. Wilczeck) YANG DIPUPUK N DENGAN DOSIS BERBEDA DAN PENYIANGAN
Full text linkThe research was conducted to know the effect of different doses of nitrogen fertilizer on the land without and with weeding. The experiments used Randomized Completely Block Design as Factorial was conducted at Sitandu Curug Serang. The result showed that the difference of dosage of N fertilizer up to 100 kg Urea ha-1 did not show the difference of green bean plant yield. Weeding once a week could increase the yield and the components of green beans about 78.3% both the number of pods per plant and the weight of seeds per plant.Keywords: Green bean, Nitrogen, Weedin
KARAKTERISASI SIFAT FISIKOKIMIA TEPUNG TALAS BENENG SEBAGAI PANGAN KHAS KABUPATEN PANDEGLANG
Full text linkABSTRACTTalas beneng is indigenous food from Pandeglang that had potential to be alternative carbohydrate source beside wheat flour. The aim of this study was to characterize physical and chemical properties of flour from Talas beneng. Physical properties this flour had L 91.13, a 2.75, b 11.27, and white degree 68.56%. This flour had brownish color. The result of chemical properties showed that water content, ash, fat, protein, carbohydrate, starch, amylose, and amylopectin respectively 9.04%, 2.25%, 0.17%, 6.73%, 81.81%, 56.29%, 19.27%, and 37.02%. Beneng taro flour could be made product that need low protein flour such as cookies, crackers, brownies, waffle, crepes, or pancake
SERAPAN SI DAN P SERTA PERTUMBUHAN PADI GOGO (Oryza sativa L.) YANG DIAPLIKASIKAN ABU SEKAM PADI DAN PADA MEDIUM ULTISOL
Full text linkABSTRACTThe main problems of rice cultivation in Ultisol medium are acid reactions, Al saturation and height P fixation, as well as low availability macro, micro nutrients especially Mo and Si. Rice plants need silicate in large quantities even though it is not an essential nutrient, therefore husk ash can be used as a source of Si. Pavailability increased by applying P fertilizer which was classified as slow realease so that fixation can be supported. The research aims to study the interaction of rice husk and rock phosphate is able to improve Si and P uptake and the growth of upland rice growth on Ultisol medium. The research was conducted at the Green House of the Faculty of Agriculture, University of Riau, Pekanbaru from January to March 2019. The research in form factorial experiment 4×3 was arranged in a completely randomized design, 3 replications. The first factor wasrice husk consist of 4 levels (0, 1,5, 3, and 4,5 ton ha-1). The second factor wasrock phosphate consist of 3 levels (0, 25, 40 kg P2O5 ha-1. The results showed the application of rice husk dose of 3 ton.ha-1 and rock phosphate dose of 25 kg P2O5 ha-1 increased Si and P uptake, P uptake efficiency, the root volume, dry weight, root canopy ratio, and plant growth rate