Minimum tillage practices affect disease and yield of lettuce
Louise E. Jackson
Irenee R. Ramirez, UC Davis
Israel Morales
Steven T. Koike
California Agriculture 56(1):35-40. DOI: 10.3733/ca.v056n01p35.
Deep minimum tillage provided better yields and less lettuce drop disease, but tended to decrease soil organic matter, compared to shallow tillage.