University of Maryland Extension

P Risk Assessments for High Tunnels

Q. Is it necessary to do a P risk assessment (PSI/PMT) for crops grown in high tunnels? The soil test FIV-P is >150 and the crops are planted in the soil; however, the high tunnel sheds the rain which eliminates potential for erosion and runoff. (Posted 11-11, revised 10-16)

A. Due to the controlled nature of management operations, no, it is not necessary to perform  P risk assessments (PSI/PMT) for crops grown in high tunnels as long as the high tunnel is in place 365 days a year. But, a PSI must be done if the high tunnel is not in place 100 percent of the year. (Renato Cuizon and Bryan Harris, MDA)

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2017. Web Accessibility