SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRY

Over the function of the upstream region watersheds causes the soil susceptible to degradation of soil fertility. Agroforestry systems that have been implemented should be reviewed to determine their effectiveness in improving soil fertility using a soil quality index. The varieties of soybean that...

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Main Authors: Supriyadi, Sri Hartati, Nur Machfiroh, Reni Ustiatik
Format: Article
Language:English
Published: Universitas Brawijaya 2016-02-01
Series:AGRIVITA Journal of Agricultural Science
Subjects:
Online Access:http://agrivita.ub.ac.id/index.php/agrivita/article/view/496
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author Supriyadi
Sri Hartati
Nur Machfiroh
Reni Ustiatik
author_facet Supriyadi
Sri Hartati
Nur Machfiroh
Reni Ustiatik
author_sort Supriyadi
collection DOAJ
description Over the function of the upstream region watersheds causes the soil susceptible to degradation of soil fertility. Agroforestry systems that have been implemented should be reviewed to determine their effectiveness in improving soil fertility using a soil quality index. The varieties of soybean that cultivated in the study site were Grobogan, Kaba and Argomulyo. The variables of this study consists of organic-C, pH, cation exchange capacity (CEC), total-N, available-P, available-K, Na, Ca, Mg, base saturation and electrical conductivity (EC). Soil quality index calculation performed on selected outcome variables principal component analysis (PCA) which is then multiplied by the weights index on each PC. Selected variables from PCA consist of available-P, available-K, base saturation and pH. Soil quality index values for all types of agroforestry in the upstream of Bengawan Solo river basin (Wonogiri) is under secondary forest (<4.1) so that it can be concluded that the adoption of agroforestry in the upstream of Bengawan Solo river basin has not effect on soil quality based on soil functions in the recycling of nutrients. Mean of soybean grain yield in agroforestry system are higher than the mean of national soybean production, but there are an obstacle such as light conditions.
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spelling doaj.art-594990dc91d04845a863567be639baf12022-12-21T18:46:31ZengUniversitas BrawijayaAGRIVITA Journal of Agricultural Science0126-05372016-02-01381556310.17503/agrivita.v38i1.496SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRYSupriyadiSri HartatiNur MachfirohReni UstiatikOver the function of the upstream region watersheds causes the soil susceptible to degradation of soil fertility. Agroforestry systems that have been implemented should be reviewed to determine their effectiveness in improving soil fertility using a soil quality index. The varieties of soybean that cultivated in the study site were Grobogan, Kaba and Argomulyo. The variables of this study consists of organic-C, pH, cation exchange capacity (CEC), total-N, available-P, available-K, Na, Ca, Mg, base saturation and electrical conductivity (EC). Soil quality index calculation performed on selected outcome variables principal component analysis (PCA) which is then multiplied by the weights index on each PC. Selected variables from PCA consist of available-P, available-K, base saturation and pH. Soil quality index values for all types of agroforestry in the upstream of Bengawan Solo river basin (Wonogiri) is under secondary forest (<4.1) so that it can be concluded that the adoption of agroforestry in the upstream of Bengawan Solo river basin has not effect on soil quality based on soil functions in the recycling of nutrients. Mean of soybean grain yield in agroforestry system are higher than the mean of national soybean production, but there are an obstacle such as light conditions.http://agrivita.ub.ac.id/index.php/agrivita/article/view/496agroforestryland degradationPCAsoil fertility
spellingShingle Supriyadi
Sri Hartati
Nur Machfiroh
Reni Ustiatik
SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRY
AGRIVITA Journal of Agricultural Science
agroforestry
land degradation
PCA
soil fertility
title SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRY
title_full SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRY
title_fullStr SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRY
title_full_unstemmed SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRY
title_short SOIL QUALITY INDEX IN THE UPSTREAM OF BENGAWAN SOLO RIVER BASIN ACCORDING TO THE SOIL FUNCTION IN NUTRIENT CYCLING BASED ON SOYBEAN PRODUCTION IN AGROFORESTRY
title_sort soil quality index in the upstream of bengawan solo river basin according to the soil function in nutrient cycling based on soybean production in agroforestry
topic agroforestry
land degradation
PCA
soil fertility
url http://agrivita.ub.ac.id/index.php/agrivita/article/view/496
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AT srihartati soilqualityindexintheupstreamofbengawansoloriverbasinaccordingtothesoilfunctioninnutrientcyclingbasedonsoybeanproductioninagroforestry
AT nurmachfiroh soilqualityindexintheupstreamofbengawansoloriverbasinaccordingtothesoilfunctioninnutrientcyclingbasedonsoybeanproductioninagroforestry
AT reniustiatik soilqualityindexintheupstreamofbengawansoloriverbasinaccordingtothesoilfunctioninnutrientcyclingbasedonsoybeanproductioninagroforestry