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Meldi T.M. Sinolungan
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COCOS
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : 27150070     DOI : 10.35791
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini memuat materi yang berkaitan dengan Pertanian. Menyangkut Tanah, Budidaya Pertanian, Proteksi Tanaman, Teknologi Pertanian dan Sosial Ekonomi Pertanian
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 831 Documents
 58   59   60   61   62 
REHABILITASI TANAH TAILING DENGAN MENGGUNAKAN BEBERAPA JENIS PUPUK ORGANIK YANG DITANAMI JAGUNG MANIS (ZEA MAYS SACCHARATA STURT.) Nisar Armanto Ridjal; Tommy D. Sondakh; Ronny Nangoi
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24360

Abstract

ABSTRACK This research was conducted to observe the changes of physical properties and responses of sweet corn (Zea mays saccharata Sturt.) planted on Tatelu's tailings soil. The reserch conducted at the UNSRAT Experimental Garden in Wailan Village, Tomohon City on July 2018 to February 2019. The research used Completely Randomized Design (CRD) as research methodology which consisted five treatments. The treaments were: A = 300 kg / ha of phonska fertilizer + 0 tons / ha of organic fertilizer, B = 300 kg / ha of phonska fertilizer + 50 tons / ha of goat manure, C = 300 kg / ha of phonska fertilizer + 40 tons / ha of fertilizer organic plus + 10 tons / ha goat manure, D = 300 kg / ha phonska fertilizer + 30 tons / ha organic fertilizer + 20 tons / ha goat manure, E = 300 kg / ha phonska fertilizer + 30 tons / ha organic fertilizer plus + 20 tons / ha of goat manure. Each treatment was repeated four times to obtain 20 experimental pots. Sweet corn plants as indicators. Parameters observed included: 1) Sweet corn cobs weight, 2) Oven dry weight of sweet corn plants 3) Analysis of soil physical properties after harvest: organic-C, Soil Pemeality and porosity. The field experiment used a polybag pot with a completely randomized design consisting of five treatments with four replications. The data obtained will be analyzed by variance. If F-count is greater than F-table (F count> F table), then the data will e analyzed with the smallest real difference test (BNT 5%). The results showed that the combination of organic matter in soil tailings had a significant effect on organic-C, porosity, and permeability, but it had no significant effect on cob weight, and plant dry weight, but tended to provide a greater value compared with no organic matter. Organic materials and plus organic materials tend to be better than goat manure to rehabilitate tailings.  Keywords: Rehabilitation of tailings, and kinds of organic materials.
RESPON PERTUMBUHAN DAN HASIL JAGUNG MANIS (Zea mays saccharata Sturt) TERHADAP PEMBERIAN PUPUK BOKASHI DAN PUPUK NPK Oktofarin Aniki; Rinny Mamarimbing; Maria. G. M. Polii
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24361

Abstract

ABSTRACT The aim of research is study the effect of dose of  Bokashi fertilizer and  NPK fertilizer on the growth ant yield of sweet corn. This research has been carried out in the village Taratara districts, Tomohon West, Tomohon city, starting from January 2016 till April 2016. This research using Completely Randomized Design  (RAK) consisting of six treatment and repeated as much three times so at earn eighteen plot. Such treatment is A = Without fertilizer , B = 20 tons Bokashi/ha, C = 300 kg NPK/ha, D = 200 kg NPK/ha + 20 tons Bokashi/ha, E = 300 kg NPK/ha + 20 tons  Bokashi/ha, F = 400 kg NPK/ha + 20 tons Bokashi/ha. The results on variable high observation plant, number leaf, long cobs and weights of cobs,  showed that giving fertilizer Bokashi and NPK do not give influence, but there is a real effect in diameter cobs. Keywords: sweet corn (Zea mays saccharata sturt), bokashi NPK
MEMPERPANJANG MASA PAJANG BUNGA POTONG KRISAN (Chrysanthemum morifolium) Stella Kountur; Jeany Sh. Polii-Mandang; Stella Tulung
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24362

Abstract

ABSTRACT  The purposes of this research is to know the utilization of the sugar preservative solvent, coconut water, vinegar and clorox towards the quality of Chrysanthemum morifolium, to know the best composition of the soaking sugar preservative solvent, coconut water,vinegar and chlorox in preserve freshness of the Chrysanthemum morifolium. This research study was conducted in the Laboratory of Plant Science, Department of Agriculture Cultivation, Universitas Sam Ratulangi Manado which start from June until August 2018. The experimental design for this research using a completely randomized design with 12 treatments and 4 repetition. The composition of preservative solvent are A : Water 1000 ml, B : Sugar 25 g/l , C : Coconut Water 40%, D : Vinegar 0,4ml / l, E : Chlorox 1 ml/l , F: Sugar 25 g/l + Coconut Water 40%, G: Sugar 25 g/l + Vinegar 0,4 ml/l, H: Sugar 25 g/l + Chlorox 1 ml/l, I: Coconut Water 40% + Vinegar 0,4 ml/l, J: Coconut Water 40% + Chlorox 1 ml/l , K: Sugar 25 g/l + Vinegar 0,4 ml/l + Coconut Water 40%, L : Sugar 25 g/l + Vinegar 0,4 ml/l + Coconut Water 40% + Chlorox 1 ml/l. The variables observed the flower freshness, the increases of the flower diameter and total of the absorbed solvent. The Sugar preservative solvent,Vinegar, Coconut Water and Chlorox had affected the age of the Chrysanthemum morifolium,  in this case could extend the long period of Chrysanthemum morifolium. This is indicated by the treatment of Sugar 25 g/l + Vinegar 0.4 ml/l + Coconut Water 40% + Chlorox 1 ml/l which is in 20,25 days. Keywords  : cut flowers, Chrysanthemum morifolium, preservative solution
Analisis Kualitas Air Irigasi Persawahan Padi Di Desa Molompar Kecamatan Tombatu Timur Kabupaten Minahasa Tenggara Stephina Pinkan Naray; Bobby Polii; Wiske Rotinsulu
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24363

Abstract

Abstrak Air irigasi adalah jumlah air yang di aplikasikan ke dalam lahan (pertanian) untuk menunjang proses pertumbuhan tanaman. Mengingat besarnya pemakaian air pada sektor pertanian, sehingga keberadaan sumber air harus tetap dijaga baik secara kuantitas maupun kualitas. Tujuan Penelitian ini adalah untuk mengetahui kualitas air dari Sungai Noan sebagai sumber air irigasi persawahan padi di Desa Molompar Kecamatan Tombatu Timur Kabupaten Minahasa Tenggara. Hasil analisis menunjukkan bahwa nilai Daya Hantar Listrik (DHL), SAR (Sodium Adsorption Ratio), Nitrat (NO3–N),  Fosfat (PO4–P) , dan pH menunjukkan kriteria sangat baik sampai baik sedangkan parameter K menunjukkan kriteria kurang baik atau melebihi standar nilai mutu air irigasi.  Kata kunci : Air irigasi, Standar kualitas air
PENGARUH INTERAKSI KONSENTRASI DAN WAKTU APLIKASI PACLOBUTRAZOL TERHADAP PERTUMBUHAN DAN HASIL TANAMAN PADI SAWAH (Oryza sativa L) VARIETAS SERAYU Dellyna Rombon; Jemmy Najoan; Semuel D. Runtunuwu
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24364

Abstract

ABSTRACT This study aims to determine the effect of the interaction between the concentration and time of application of paclobutrazol to the growth and yield of wetland rice, The experiment was carried out for 4 months in Sulu Village , Tatapaan Indah District, South Minahasa Regency, starting from May to August 2014. The experiment was carried out using the Randomized Block Design (RBD) method, with two treatment factors namely paclobutrazol concentration, consisting of three concentrations namely: 1). P1 (0 ppm), 2). P2 (400 ppm), 3). P3 (600 ppm), and Time of paclobutrazol application (W), namely: 1). W1 is sprayed at plant age 30 HST, 2). W2 is sprayed at plant age 37 HST, 3). W3 is sprayed at plant age 44 HST. Observations were made on: Plant height, number of productive tillers, harvested dry grain, paddy filled with paddy, weight of paddy filled with clumps. Data were analyzed by variance and the smallest real difference test was BNT 0.5%. The time and concentration of administration of paclobutrazol only interact significantly in plant height. The concentration of paclobutrazol (singly) has a significant effect on: 1). Dry paddy harvest, 2). Number of grains containing clumps, 3). grain weight containing clumps. Keywords: paddy, paclobutrazol, concentration, date of application, interaction.
ANALISIS PROFITABILITAS USAHATANI TANAMAN “DAUN GEDI” (Abelmochus Manihot) DI KABUPATEN MINAHASA UTARA Rinny Lontoh
COCOS Vol. 10 No. 6 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i4.24815

Abstract

ABSTRACT  The purpose of this research is to know the profitability of the leaf crops Gedi in north of Minahasa regency. This research carried out during three months start from May until July 2019. The sample of this research used simple random sampling method. The data collected in this research is primary data and secondary data. Primary data obtained from direct interview to ten farmers of the leaf crops Gedi, secondary data obtained from the agency that related with the research and through google searching to got scientific journal article and skripsi from another university that related with topic of research. The result of this research showed that crop farming of Tanaman (plant) Gedi generate profit about 66,43%. It means that if the the bussiness is able to sell production result, so the level of the profitability obtained from the sale is 66,43%. Key Words : Profitability, Gedi, North of Minahasa regency.
MODIFIKASI TUNGKU PEMBUATAN GULA AREN (Arenga Pinnata) MENGGUNAKAN BAHAN BAKAR LPG (Liquified Petroleum Gas) Rizal Mokodompit; Ir. Freeke Pangkerego, MS; Dr. Ir. Lady Lengkey, MSi
COCOS Vol. 10 No. 6 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i4.25024

Abstract

Abstract The purpose of this study was to modify and make furnace for the processing of palm sugar, test the performance of modified furnace and traditional furnace in terms of fuel usage and processing time, and calculate the efficiency of traditional furnaces and furnaces. The results showed that the processing of palm sugar sap using 3.6 kg LPG fuel modification furnace had a processing time of 3.33 hours whereas, the processing of traditional palm sugar palm sap using wood fuel as much as 49.3 kg had a processing time of 1, 73 hours because palm sugar has been preheated. The FCR fuel consumption rate using a modified furnace is 1,081 (kg / hour), and the FCR fuel consumption rate (fuel consumption rate) using traditional furnace is 28.49 (kg / hour). The efficiency of the modified furnace is 8.90%, and the efficiency of traditional furnaces is 1.07% Keywords: Processing Time, Fuel Consumption, Furnace Efficiency
KAJIAN UJI KINERJA ALAT TANAM KEDELAI IRF-01 Isak T. Sulle; Ruland A. Rantung; Freeke Pangkerego
COCOS Vol. 10 No. 7 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25025

Abstract

ABSTRACT       This study aims to design and make a soybean planting tool with aspects that need to be considered such as planting conditions, number of seeds per planting hole, planting distance, seed conditions when planted, and planting efficiency. The expected outcome of this research is that it can produce soybean planting tools that can be used by farmers and academics to support government programs in increasing national soybean production.      The process of designing and manufacturing tools was carried out at the Agriculture Technology laboratory and planting or testing the performance of the tools carried out in the Unsrat village of Wailan experimental village in North Tomohon District. This research began from April 8 to May 20 2019 for the manufacture of tools and the planting process was carried out on May 22, 2019 using a planting tool that had been made with a hand tractor as a towing force and 3 weeks of observation of growing soybeans. The soybean varieties grown are Dega 1 soybean variety which is the best variety according to 2017 R & D data.      Data obtained after the process of planting and observing soybeans for 3 weeks was in the form of field efficiency data of 81.57%. with the percentage of seeds growing 61.59% and the percentage of seeds not growing 38.41%. The total percentage of seed growth is closely related to the performance of the tool because the tool still has a deficiency in the metering device that has a gap with the hopper resulting in the seeds entering the gap breaking and unable to grow when planted.  Keywords : Soybean planting tools, Spacing, Dega 1, Growing seed percentage, Field efficiency, Metering device
UJI KINERJA RICE TRANSPLANTER ISEKI PC4 DI DESA KOPI KECAMATAN BINTAUNA Fadlan Radjiku; Freeke Pangkerego; Frans Wenur
COCOS Vol. 10 No. 7 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25026

Abstract

ABSTRACT Iseki PC4 Rice Transplanter is a rice paddy planting tool provided by the North Bolaang Mongondow district government assistance to farmers to help with the planting process so that it does not require a lot of human labor and can save on planting costs. However, until now the existing tools have not been used because farmers cannot operate them. For this reason, it is necessary to study the operation and performance of the tools so that farmers can use these tools and provide benefits. This study aims to determine the uniformity of seedling plugging, calculate field efficiency, and determine fuel consumption from the use of Iseki PC4 Rice Transplanter tools. The results of testing using Iseki PC4 Rice Transplanter obtained an average seed plugging uniformity of 86.73%, an average field efficiency of 78.58% and fuel consumption of 8.96 liters / ha. Keywords : Iseki PC4 Rice Transplanter, filed efficiency.
UJI TEKNIS ALAT TANAM JAGUNG (Zea mays L.) TIPE TP CSM 15 DENGAN MENGGUNAKAN TRAKTOR TANGAN SEBAGAI ALAT PENARIK1) Idhansyah .; Ruland A Rantung; Daniel P. M Ludong
COCOS Vol. 10 No. 7 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25027

Abstract

ABSTRACT      This study aims to test technically the corn seeds planter (Zea mays L.) type TP CSM (Corn seeding machine) 15 using the hand tractor as a pulling device on the plot of the land 30 m x 10 m. The test results of TP CSM 15 corn seeds planter in 30 m x 10 m plot of the land on 3 field tests with soil treatment got the average effective field capacity of 0,30 ha/hour, the average theoretical field efficiency of 0,47 ha/hour, and the average field efficiency of 64,20 %. The average distance between planting rows is 73,2 cm and the average distance in row planting is 28,4 cm. The number of seeds per planting hole 1 – 3 with an average of 1 seed per planting hole and an average planting depth of 5.5 cm. The percentage of seeds which grew successfully by an average of 75,74% and the percentage of seeds which unsuccessfully to grow by an average of 24,26%. Keywords : TP CSM 15, Hand Tractor, Field Efficiency.

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