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Fertilization the Omission One Test as Determination Limiting Factors for Maize Biomass (Zea Mays L.)

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Role of Microbes in Plant Growth and Food Preservation

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Keanekaragaman Tumbuhan Paku (Pteridophyta) di Sumatera Utara (Studi Kasus: Taman Nasional Batang Gadis Resort 7 Sopotinjak)

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Eksplorasi Jamur Makroskopis di Taman Nasional Batang Gadis Kawasan Resort 7 Kabupaten Mandailing Natal, Sumatera Utara

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Respon Pertumbuhan Setek Mucuna terhadap Konsentrasi dan Lama Perendaman Ekstrak Bawang Merah

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Role of Microbes in Plant Growth and Food Preservation

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Keanekaragaman Tumbuhan Paku (Pteridophyta) di Sumatera Utara (Studi Kasus: Taman Nasional Batang Gadis Resort 7 Sopotinjak)

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Eksplorasi Jamur Makroskopis di Taman Nasional Batang Gadis Kawasan Resort 7 Kabupaten Mandailing Natal, Sumatera Utara

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Respon Pertumbuhan Setek Mucuna terhadap Konsentrasi dan Lama Perendaman Ekstrak Bawang Merah

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Response of Soil and Peanut (Arachis Hypogaea L.) on the Application of Several Local Microorganism and Manures

Introduction: This research was conducted to determine the effect of several types of local microorganism solutions and manures on the growth and yield of peanut and their impact on the physical properties of ultisols. Materials and Methods: The researches was conducted in Simalingkar B, Medan using Factorial Randomized Block Design within three replications. The first factor was types of microbe sources of local microbial solutions, include un-treated waste (M0), pineapple (M1), orange (M2), and tamarillo (M3) wastes. The second factor was manure types, inluce un-treated manure (P0), chicken (P1), cow (P2), and goat (P3) manures. The parameters were: soil physical characteristics (bulk density, water content and total of pore space), plant height, stem diameter, number of pods, and dry seeds yield. Results: The types of local microorganism solutions only affect to plant height of peanut, but has insignificant effect on the physical properties of ultisols, and stem diameter, the number of filled pods.plant-1, and the dry seeds yield.ha-1 of peanut. The types of manure had significantly effected on plant height and number of filled pods.plant-1, but had insignificant effect on stem diameter, dry seeds yield.ha-1 and the physical properties of ultisols. The interaction of MOL sources and manure did not significantly affect the growth and yield of peanut as well as the physical properties of ultisols. Orange MOL and chicken manure could be increase the plant height of peanut by 18.61% and 6.75%, respectively, compared to un-treated. Goat manure showed the highest number of pods.plant-1 by 6.32% compared to un-treated.
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Review of Eleusine Indica Weed as Heavy Metals Phytoremediator

Introduction: Weeds have been reported to be disadvantage in agriculture, however the advantage in the environment. The report of Eleusine indica weed as phytoremediation of heavy metals in ex-mining land is still relatively few. The article review was aimed to examine the mechanism of Eleusine indica weed in the phytoremediation of several heavy metals. Review results: Eleusine indica weed is classified as a hyperaccumulator plant because it was able to remediate several heavy metals. Based on previous research, Eleusine indica weed had the phytostabilization and phytoextraction mechanism in remediating several heavy metals.
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Characteristics of Growth and Yield for Wax Apple (Syzygium Samarangense) in the Application of Goat Manure and NASA Liquid Organic Fertilizer

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Use of Bamboo Vinegar as an Alternative to Control Downy Mildew in Maize

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The Application of Sugarcane Bagasse Compost and Effectiveness of N-Fertilizer on Vegetative Growth for Cocoa (Theobroma Cacao L.)

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Ecology of Forest Ecosytem: Inventory of Macroscopic Mushrooms in Taman Hutan Raya Bukit Barisan Area, Karo Regency, North Sumatra Province

Introduction: The research was aimed to identify the types of macroscopic mushrooms and habit characteristics of macroscopic mushrooms in Taman Hutan Raya Bukit Barisan Karo Regency North Sumatra. Materials and Methods: The research was conducted in Taman Hutan Raya Bukit Barisan, Karo Regency, North Sumatra from August until October 2019. The research method used in sampling was the Exploration Method. Results: showed 23 species of macroscopic mushrooms. The highest family is Ganodermatacea with 4 species and the lowest family is Strophariaceae, Hydnangiaceae, Mycenaceae, Fomitopsidaceae, Crepidateceae, Agariceae, Inocybaceae, Russulaceae, Streaceae, and Tricholomateceae with 1 species. Habitat characteristics that are mostly found in weathered wood are found in 13 types of fungi, and at least found in live wood, only 1 species of macroscopic fungi are found.
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Regression Factors of Rainfall, Humidity, and Rainy Day on Pepper Yield and Policy Alternatives in North Sumatra

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Seed-Borne Fungal Diseases of Maize (Zea Mays L.): A Review

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Regression Factors of Rainfall, Humidity, and Rainy Day on Pepper Yield and Policy Alternatives in North Sumatra

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Seed-Borne Fungal Diseases of Maize (Zea Mays L.): A Review

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The Effect of Beans Position of the Fruit and Liquid Organic Fertilizer on the Cocoa Seedlings

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Pengaruh Konsentrasi dan Interval Pupuk Organik Cair terhadap Pertumbuhan Samhong (Brassica Juncea L.) Hidroponik

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Ekologi, Kerugian, dan Pengelolaan Gulma Jajagoan (Echinochloa Crus-galli) Resisten Herbisida pada Pertanaman Padi Sawah: Review

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Soil Macrofauna Exploration in Cocoa Plants During the Dry Season

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