Nitrogen acquisition by vegetables under low soil nitrate-nitrogen

• Project/Area Number: 22780018
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Horticulture/Landscape architecture
• Research Institution: University of Yamanashi (2012); The University of Tokyo (2010-2011)
• Principal Investigator: NAKATA Miki 山梨大学, 大学院・医学工学総合研究部, 准教授 (90436519)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 野菜 / 雑草 / マルチ / トマト / 窒素 / 無施肥 / 不耕起 / 根系 / 硝酸態窒素 / 微生物バイオマス / 可給態窒素

Research Abstract

‘Weed mulch’, the method of weed management was developed combining 2 methodsweed living mulch and weed residue mulch and applied to tomato. The effects of this method on the fruit yield and shoot dry weight of tomato were investigated to understand the