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Verry Ch. Warouw
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Agriculture, Biological Sciences & Forestry

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IDENTIFIKASI SIFAT FISIK DAN KIMIA TANAH PADA LAHAN PERSAWAHAN DI KECAMATAN KOTAMOBAGU SELATAN Dimas Ajie Saputra; Sandra E. Pakasi; Verry Ch. Warouw
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31053

Abstract

ABSTRACTThe purpose of this study is to determine the physical and chemical properties of the soil on thepaddy fields in the District Kotamobagu Selatan. This research was conducted in the month of Octoberuntil November 2019. The method used is survey method, namely by direct observation in the field anddoing analysis. Soil samples taken at the 41 point spread on a land area of rice fields amounted to1318.07 ha. . Parameters observed were Soil Texture (method of Kang Biaw Tjwan), soil pH (pHmeter), C-organic matter (method of Walkley and Black), Nitrogen (method of Kjedhal), Phosphorus(method of Bray I) and Potassium (method of Bray I). Research data analysis using descriptive analysis.The results showed that, soil physical and chemical properties in paddy fields in the DistrictKotamobagu Selatan are as follows physical properties of the soil have a clay texture dusty, andchemical properties of the soil that consists of : a pH within the criteria of neutral, C-organic is in thecriteria high to low, the nitrogen criteria of low to very low, phosphorus is in the criteria is and thepotassium is on the kiteria was.Keywords: physical properties, chemical properties, paddy field,
APLIKASI BIOCHAR DAN PUPUK KANDANG SAPI TERHADAP PERTUMBUHAN TANAMAN BAYAM MERAH (Amaranthus tricolor L) Yonni Oktavio Balompapung; Verry Ch. Warouw; Lientje Th. Karamoy
COCOS Vol. 13 No. 1 (2021): EDISI JANUARI-MARET 2021
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i2.32532

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SUMMARYYonni Oktavio Balompapung, 14031108021 (2021) Application of Biochar and CowManure on Growth of Red Spinach Plants (Amaranthus Tricolor L). Under theguidance of Dr. Ir. Verry Ch. Warouw, MS as Chairman and Dr. Ir. Lientje Th.Karamoy, MSi as Member.This study aims to examine and find out how much influence the application ofbiochar and cow manure on the growth of red spinach (Amaranthus Tricolor L)plants. This research was conducted in Kakaskasen Village, North Tomohon District,Tomohon City. For pot experiments, soil analysis and cow manure were carried out atthe Laboratory of Chemistry and Soil Fertility, Department of Soil, Faculty ofAgriculture, Sam Ratulangi University, Manado. This research was conducted using acompletely randomized design method consisting of 7 treatments with 5 replicationsin order to obtain 35 experimental pots, where soil control (KT), soil biochar control(KTB) and A, B, C, D, E as mixed growing media biochar and cow manure accordingto the dosage.The results of this study indicate that the application of biochar and cow manureaffects the growth and production of red spinach (Amaranthus Tricolor L.) in thiscase plant height, plant fresh weight and plant dry weight. The higher the dose ofmanure given, the higher the results obtained for plant height, plant fresh weight andplant dry weight.Keywords: Biochar,Cow manure, Red spinach.
Co-Authors Dimas Ajie Saputra Lientje Th. Karamoy Sandra E. Pakasi Yonni Oktavio Balompapung