soil basic nitrogen

soil basic nitrogen supply

Soil nitrogen content

Amount of soil nitrogen supply

Apparent budget of soil nitrogen

Apparent soil nitrogen loss

apparent soil-nitrogen-balance rate

Basic amounts of soil nitrogen supply

Basic Soil

basic soil feature

Basic soil taxonomy

cohesive soil content

contribution rate of basic soil productivity

fine grained soil content

High Water Content Soil

index of soil nitrogen-supplying capacity

methods of measuring soil nitrogen supplying capacity

mineralization of soil nitrogen

nitrogen content in soil