Constriction of natural plant protection system for tea and rice

2014 Fiscal Year Final Research Report

• Project/Area Number: 23380191
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental agriculture(including landscape science)
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: KIMIURA Sonoko Dorothea 東京農工大学, (連合)農学研究科(研究院), 准教授 (60397015)
• Co-Investigator(Kenkyū-buntansha): MOTOBAYASHI Takashi 東京農工大学, 大学院農学研究院, 講師 (20262230) ; SUZUKI Sozoh 東京農工大学, 大学院農学研究院, 教授 (30137898) ; ARAI Sachiho 東京農工大学, 大学院農学研究院, 講師 (40345062) ; OHTSU Naoko 東京農工大学, 大学院農学研究院, 講師 (40513437) ; NAKAI Madoka 東京農工大学, 大学院農学研究院, 准教授 (60302907) ; MURASE Kaori 名古屋市立大学, 准教授 (60396819) ; SATO Kannna 東京農工大学, 大学院農学研究院, 助教 (40456603)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: チャ / イネ / 害虫 / 亜酸化窒素ガス / 肥培管理 / 窒素施肥

Outline of Final Research Achievements

The instability of organic agricultural practices was analyzed from aspects from agronomy, plant physiology, plant protection and agro-economy for rice and tea as model crops. Based on on-farm researches in Kyushu and Kanto region, field experiments were conducted at Tokyo University of Agriculture and Technology and Saitama Prefectural Agriculture and Forestry Research Center. Tea cultivation technology was not standardized and highly depending on the producers’ skill. Population of red spider mite, tea spiny whitefly and yellow tea thrips increased significantly in chemical fertilizer treatment compared, while tea nitrogen concentration did not differ among the treatments. For environmentally friendly agriculture, utilization of organic fertilizer that takes into account environmental and anthropogenic factors is necessary.

Free Research Field

環境農学