Inventor
KASPAR THOMAS C
US3 patents
Patents
3 patentsUS4884436ADec 5, 1989
Automated tension infiltrometer
UNIV IOWA STATE RES FOUND INC23 citations75
US5913368AJun 22, 1999
Method to increase N-use efficiency and reduce leaching
UNIV IOWA STATE RES FOUND INC8 citations68
US5797459AAug 25, 1998
Method and tool to increase in-use efficiency and reduce leaching
UNIV IOWA STATE RES FOUND INC1 citations47