JARQ:Japan Agricultural Research Quarterly
About JARQ
The Japan Agricultural Research Quarterly (JARQ) is a publication of the Japan International Research Center for Agricultural Sciences (JIRCAS), which provides readers overseas with the latest information on key achievements and developments in agricultural research in Japan, with the expectation that this information would contribute to the agricultural development of countries in tropical and subtropical regions.
The JARQ has updated its editorial policy to meet the demands of the times. The current editorial policy, revised on March 12, 2025, aims to "disseminate findings and trends in research related to Japan's agriculture, forestry, and fisheries, as well as international collaborative research involving Japanese researchers, to a broad audience both domestically and internationally through original articles and reviews." To this end, JARQ publishes original articles and research reviews, which are expected to contribute to agricultural development in developing regions.
The JARQ editorial policy revised on July 23, 1999 featured a different classification of papers. At that time, all submissions were classified as "research articles" and not limited to original articles, allowing authors to present "the aims, methods, results, and broader impact of a series of research, including previously published work."
Following the 1999 policy, the JARQ editorial office accepted research articles that included previously published content. However, the current editorial policy (revised on March 12, 2025) defines original articles as "papers that summarize the results of research conducted by the author, with no precedent in content or other aspects." Therefore, under the 2025 policy, previously published papers are no longer accepted.
All Issue

Comparison of Major Agronomic Characters in Guineagrass and Colored Cuineagrass
KOUSUKE NAKAJIMA, JARQ:Japan Agricultural Research Quarterly. 12(3) , 145-151 (1978-07-01)
12-3-145-151.pdf1.09 MB

Stephanofilariasis Caused by S. Okinawaensis of Cattle in Japan
HAKARU UENO, TAKESHI CHIBANA, JARQ:Japan Agricultural Research Quarterly. 12(3) , 152-156 (1978-07-01)
12-3-152-156.pdf993.82 KB

Serological Diagnosis of Chicken Leucocytozoonosis
SHIGEO KITAOKA, JARQ:Japan Agricultural Research Quarterly. 12(3) , 157-160 (1978-07-01)
12-3-157-160.pdf700.19 KB

Rearing of Young Steers on Bahiagrass and Application of Compensatory Growth at Finishing Period for Beef Production
YUJI TAKIMOTO, JARQ:Japan Agricultural Research Quarterly. 12(3) , 161-167 (1978-07-01)
12-3-161-167.pdf1.3 MB

Sensing by Satellite for Forest Surveys
IWAO NAKAJIMA, JARQ:Japan Agricultural Research Quarterly. 12(3) , 168-172 (1978-07-01)
12-3-168-172.pdf849.01 KB

Production of Bark Compost and Its Application to Agriculture and Forestry
HIROSHI KAWADA, JARQ:Japan Agricultural Research Quarterly. 12(3) , 173-176 (1978-07-01)
12-3-173-176.pdf612.71 KB

Antagonistic iron-deficiency of rice plants growing in acid red latosol in Paraná, Brazil
YOSHIKAZU OHNO, CELSO JAMIL MARUR, LAURO AKIO OKUYAMA, JARQ:Japan Agricultural Research Quarterly. 12(3) , 177-179 (1978-07-01)
jarq12-3_177-179.pdf475.74 KB

Sulphur application and amino acid content of brown rice
M. ISUMUNADJI, MASANORI MIYAKE, JARQ:Japan Agricultural Research Quarterly. 12(3) , 180-182 (1978-07-01)
jarq12-3_180-182.pdf975.68 KB

Present Status and Prospect of Rice Breeding for Brown Planthopper Resistance in Japan
CHUKICHI KANEDA, JARQ:Japan Agricultural Research Quarterly. 12(2) , 57-63 (1978-04-01)
12-2-057-063.pdf1.15 MB

The Effect of Air Temperature on the Dark Respiration and Nutrient Absorption of C3 and C4 Crop Species
NGUYEN QUOC VONG, YOSHIO MURATA, JARQ:Japan Agricultural Research Quarterly. 12(2) , 64-68 (1978-04-01)
12-2-064-068.pdf828.2 KB

An Injury to Rice Plants Caused by Photochemical Oxidants in Japan
HIROSHI NAKAMURA, YASUO OTA, JARQ:Japan Agricultural Research Quarterly. 12(2) , 69-73 (1978-04-01)
12-2-069-073.pdf906.48 KB

Soil Amendment and Fertilizer Application Improvement in Upland Fields of Red and Yellow Soils in Japan
KAZUSHI TAKAHASHI, JARQ:Japan Agricultural Research Quarterly. 12(2) , 74-78 (1978-04-01)
12-2-074-078.pdf972.17 KB

Dynamic Behavior of Soil Nitrogen in Paddy Soils of Thailand
MICHIO ARARAGI, SATORU MOTOMURA, TAKEO KOYAMA, TATSUHIKO MATSUGUCHI, CHITTANA CHAMMEK, NATTE NIAMSRICHAND, BANHARN TANGCHAM, SOMCHAI PATIYUTH, ASHARA SEIRAYOSAKOL, JARQ:Japan Agricultural Research Quarterly. 12(2) , 79-85 (1978-04-01)
12-2-079-085.pdf1.26 MB

Designing Process and Theories of Rotary Blades for Better Rotary Tillage (Part 1)
JUN SAKAI, JARQ:Japan Agricultural Research Quarterly. 12(2) , 86-93 (1978-04-01)
12-2-086-093.pdf1.23 MB

Reddish Orange Pigments of Black Tea Structures and Oxidative Formation from Catechins
YOSHINORI TAKINO, JARQ:Japan Agricultural Research Quarterly. 12(2) , 94-98 (1978-04-01)
12-2-094-098.pdf887.68 KB

Trap for Monitoring Adult Parasites of the Tea Pest
KAZUO TAKAGI, JARQ:Japan Agricultural Research Quarterly. 12(2) , 99-103 (1978-04-01)
12-2-099-103.pdf730.24 KB

Preparation of a New Protein Food Material by Freezing
KAZUMOTO HASHIZUME, JARQ:Japan Agricultural Research Quarterly. 12(2) , 104-108 (1978-04-01)
12-2-104-108.pdf815.19 KB

Tropical Woods as Pulp Stuffs
KUNINORI USAMI, JARQ:Japan Agricultural Research Quarterly. 12(2) , 109-114 (1978-04-01)
12-2-109-114.pdf997.83 KB

Host species of two hymenopterous parasite to rice gall midge observed in Thailand
MASAHIRO KOBAYASHI, SAWAN KADKAO, JARQ:Japan Agricultural Research Quarterly. 12(2) , 115-116 (1978-04-01)
jarq12-2_115-116.pdf272.86 KB

Expansion and growth of tropical bamboo by culm cutting
ETSUZO UCHIMURA, JARQ:Japan Agricultural Research Quarterly. 12(2) , 117-119 (1978-04-01)
jarq12-2_117-119.pdf492.77 KB

Effects of Chlorine on Growth and Quality of Tobacco
HIROSHI ISHIZAKI, TATSUSHI AKIYA, JARQ:Japan Agricultural Research Quarterly. 12(1) , 1-6 (1978-01-01)
12-1-001-006.pdf1.2 MB

Sulfur Nutrition and Diagnosis of Sulfur Deficiency of Rice Plants
AKIRA SUZUKI, JARQ:Japan Agricultural Research Quarterly. 12(1) , 7-11 (1978-01-01)
12-1-007-011.pdf938.43 KB

Precooling before Shipment for Preserving Post-Harvest Quality of Vegetables in Japan
KIYOHISA OGAWA, JARQ:Japan Agricultural Research Quarterly. 12(1) , 12-16 (1978-01-01)
12-1-012-016.pdf868.28 KB

Roughage Wafering Techniques in Japan
KENZO SUSAWA, JARQ:Japan Agricultural Research Quarterly. 12(1) , 17-21 (1978-01-01)
12-1-017-021.pdf879.11 KB

Designing Water Requirement of Upland Farms in Humid Regions
HIROSHI KAWANO, JARQ:Japan Agricultural Research Quarterly. 12(1) , 22-26 (1978-01-01)
12-1-022-026.pdf828.95 KB

Antiviral Effects of Tea Catechins and Black Tea Theaflavins on Plant Viruses
FUMIO OKADA, JARQ:Japan Agricultural Research Quarterly. 12(1) , 27-32 (1978-01-01)
12-1-027-032.pdf984.67 KB

Storage of Green Tea by the Use of Various Packaging
SHU-ICHI FUKATSU, JARQ:Japan Agricultural Research Quarterly. 12(1) , 33-38 (1978-01-01)
12-1-033-038.pdf909.68 KB

Grazing Capacity of Grasslands with Tropical Grasses, Dallisgrass and Bahiagrass
SEI-ICHI OOWAKI, JARQ:Japan Agricultural Research Quarterly. 12(1) , 39-43 (1978-01-01)
12-1-039-043.pdf809.47 KB

Seed Germination Ecology and Cultivation of Barnyardgrass after Italian Ryegrass in Unflooded Paddy Fields
HITOSHI TAKAHASHI, JARQ:Japan Agricultural Research Quarterly. 12(1) , 44-48 (1978-01-01)
12-1-044-048.pdf860.02 KB

Effects of Forest Workings on Streamflow and Water Quality (Part 2)
HIDENORI NAKANO, JARQ:Japan Agricultural Research Quarterly. 12(1) , 49-52 (1978-01-01)
12-1-049-052.pdf848.49 KB