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All Journal Agrosains: Jurnal Penelitian Agronomi
Suntoro Suntoro
Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry

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Ketersediaan dan Serapan Mg Kacang Tanah Alfisol dengan Abu Vulkanik Kelud dan Pupuk Organik Amandemen Suntoro Suntoro; Hery Widjianto; Tutik Handayani
Agrosains : Jurnal Penelitian Agronomi Vol 19, No 1 (2017): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (208.072 KB) | DOI: 10.20961/agsjpa.v19i1.20920

Abstract

As a result of volcanic eruptions led to the fall of the ash, but there is no much research conducted against nutrient content and the nutrient availability in soil. Disposals of volcanic ash and organic matter are expected fill Mg need in the land. Magnesium In Alfisol is still  sufficientless for peanuts. The purpose of this research is study of the impact of volcanic ash and organic fertilizer for the availability and uptake of peanuts Mg  in the Alfisol. The experiments did  in a greenhouse used completely randomized design with one factor. Data were analyzed with F test rate from 95%, and if the  treatments showed significant influenced were continued with rate duncan's multiple range test fence from 95%. The observed variables include the levels of chlorophyll, available Mg and uptake Mg. Research results show that the interaction from treatment chlorophyll content, available Mg and uptake  Mg. Based on the findings of the observations of volcanic ash disposals operating significantly impact the availability of magnesium.
Pengaruh Abu Vulkanik Kelud dan Pupuk Kandang terhadap Ketersediaan dan Serapan Kalium pada Jagung di Tanah Alfisol Suntoro Suntoro; Sudadi Sudadi; Hery Widijanto; Galuh Novikah Widy Utami
Agrosains : Jurnal Penelitian Agronomi Vol 18, No 1 (2016): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.75 KB) | DOI: 10.20961/agsjpa.v18i1.18680

Abstract

Kelud volcanic ash has high source of minerals, which is potassium. This study aims to determine the effect and find the best composition of Kelud volcanic ash and manure to the availability and corn uptake of potassium in the Alfisols.This research is expected to provide information on the composition of volcanic ash Kelud and proper manure for agriculture. This research was conducted in the greenhouse, in the Laboratory of Ecology and Management of Crop Production, and soil chemistry laboratory of the Faculty of Agriculture, Sebelas Maret University in June 2014 - January 2015. Research using completely randomized design which consists of two factors, there are the thickness of Kelud volcanic ash which consists of four levels A0 (0 cm), A1 (2 cm), A2 (4 cm), and A3 (6 cm) and the dose of manure were P0 (0 ton/ha), P1 (2,5 ton/ha), and P2 (5 ton/ha). Each combination treatment was repeated 3 times. The data were then analyzed using the F test and continued with Duncan Multiple Range Test Test (DMRT) level of 95%. The results showed that the interaction between the two treatments were no significant different. Availability Potassium gradually decreased with an increase in the dose of volcanic ash Kelud, allegedly because of the low value of the total potassium Kelud volcanic ash. The results of measurements of plant potassium uptake increased with increasing dose Kelud volcanic ash and manure.
Co-Authors Galuh Novikah Widy Utami Hery Widijanto Hery Widjianto Sudadi Sudadi Tutik Handayani