IMPACT OF BRACHIARIA, ARBUSCULAR MYCORRHIZA, AND POTASSIUM ENRICHED RICE STRAW COMPOST ON ALUMINUM y POTASSIUM AND STABILITY OF ACID SOIL AGGREGATES

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Jakarta

April 2012

ISSN
1411-982X

April 2012

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ISSN 1411-982X

Indonesian Journal of

AGRICULTURAL
SCIENCE
Vol. 13 No.1, April 2012
Accredited A by the Indonesian Institute of
Sciences No. 816/0/2009

Director of Indonesian Center for Agricultural Library and Technology Dissemination

Farid Hasan Baktir
Editorial Board
Chairman
Supriadi

Plant Pathology
Indonesian Spice and Medicinal Crops Research Institute

Members
Fahmuddin Agus
Sutoro

I Made Tasma

Budi Tangendjaja
Dewa Ketut Sadra Swastika
Sri Widowati

Soil Science
Indonesian Soil Research Institute

Agronomy
Indonesian Center for Agricultural Biotechnology and Genetic Resources
Research and Development
Plant Breeding and Molecular Biology
Indonesian Center for Agricultural Biotechnology and Genetic Resources
Research and Development
Animal Feed and Nutrition
Indonesian Center for Animal Research and Development
Socioeconomics
Indonesian Center for Agricultural Socio Economic and Policy Studies
Food Technology
Indonesian Center for Agricultural Postharvest Research and Development

Managing Editor
Endang Setyorini
Ujang Sahali

Indonesian Center for Agricultural Library and Technology Dissemination
Indonesian Center for Agricultural Library and Technology Dissemination


All inquiries and manuscripts should be sent to the :
The editorial office
Indonesian Center for Agri cultural Library and Technology Dissemination
Jalan Ir. H. Juanda No. 20
Bogor 16122, Indonesia
Telephone : +62 251 8321746
Fax
+62 251 8326561
E-mail
pustaka@litbang.deptan .go.id
Website
hltp :/Ipustaka .litbang .deptan .go. id
Printed in Indonesia
© 2012 , Indonesian Agency for Agricultural Research and Development, Jakarta , Indonesia

ISSN 1411-982X

Indonesian Journal of

AGRICULTURAL

SCIENCE
Vol. 13 No.1, April 2012

CONTENTS

Methane emission from direct seeded rice under the influences
of rice straw and nitrification inhibitor
A. Wihardjaka, S. Djalal Tandjung , B. Hendro Sunarminto, .
and Eko Sugiharto

1-11

Multifunctional mutants of Azospirillum sp. with enhanced capability
of solubilizing phosphorus, fixing nitrogen, and producing indole
acetic acid
Eny Ida Riyanti, Toto Hadiarto, and D.N. Susilowati

12-17

Potency of predator (Menochilus sexmaculatus) augmentation

for white fly (Bemisia tabacl1 management and its effect
on gemini virus infestation on tomato
W. Setiawati, N. Gunaeni, T.S. Uhan, and A. Hasyim

18-26

Impact of Brachiaria, arbuscular mycorrhiza, and potassium enriched
rice straw compost on aluminum, potassium and stability of acid
soil aggregates
Bariot Hafif, Supiandi Sabiham, Iswandi Anas, Atang Sutandi,
and Suyamto

27-34

The financial feasibility of rice dryers: A case study in Subang District,
West Java
Dewa Ketut Sadra Swastika

35-42


Indonesian Journal of Agricultural Science is previously published as Indonesian Journal of Crop Science (1985 -1999). Th is
in one volume of two issues per year by the Indonesian Agency for Agricultural Research and Development.
journal is ーオ「ャゥウセL・、@
It is available online at: http://pustaka.litbang .deptan.go.id.
The journal publishes primary research articles from any source if they make a significant original contribution to the experimental
or theoretical understanding of some aspect of agricultural science in Indonesia . The definition of agricultural science is kept as
wide as possible to allow the broadest coverage in the journal.

Indonesian Journal of Agricultural Science 13(1), 2012: 27-34

IMPACT OF BRACHIARIA, ARBUSCULAR MYCORRHIZA, AND POTASSIUM
ENRICHED RICE STRAW COMPOST ON ALUMINUM y POTASSIUM AND
STABILITY OF ACID SOIL AGGREGATES
Bariot Hafifa, Supiandi Sabiham b, Iswandi Anasb, Atang Sutandi b, and SuyamtoC
aLampung Assessment Institute for Agricultural Technology
Jolon ZA. Pagar Alam No. 1A Rajabasa, Bondar Lampung 35145, Indonesia
Phone +62 721 781776. 701328, Fax. +62 721 705273, E-mail:
bDepartment of Soil Sciences and Land Resource. Faculty of Agriculture, Bogar Agricultural University
Kampus Darmaga, Bogar 16680. Indonesia
c/ndonesian Center for Food Crops r