1. Land retired from crop cultivation and planted with soil-building crops; government subsidies are paid to farmers for their retired land

Derived forms: soil banks

Type of: bank

• ionospheric wave
• iontophoresis
• iontotherapy
• IOP
• Iosif Vissarionovich Dzhugashvili
• iota
• IOU
• Iowa
• Iowa crab
• Iowa crab apple
• Iowan
• Ioway
• IP
• IP address
• IPA
• IPCC
• ipecac
• ipecacuanha
• Iphigenia
• Ipidae
• IPO
• iPod
• Ipomoea
• Ipomoea alba
• Ipomoea batatas