TY - BOOK ID - 127131844 TI - Soil fertility and fertilizers AU - Tisdale, Samuel L. AU - Nelson, Werner Lind PY - 1971 PB - New York, N.Y.: MacMillan, DB - UniCat KW - Soil fertility KW - Fertilizers KW - Crops UR - https://www.unicat.be/uniCat?func=search&query=sysid:127131844 AB - ER -