Orange County (Calif.)
Citrus fruit industry; Fertilizers;
Charles C. Chapman discusses experimentation with various fertilizers on his Santa Isabel Ranch in Fullerton and fertilizing methods he discussed with orchardists in Fullerton and Placentia. He mentions trying sheep manure, lime cake, bone meal, commercial fertilizer, wood ashes and a combination of each. He concludes that he cannot discern any difference in his crops based on the type of fertilizer employed. He goes on to say that he feels that there is already much plant food in soil and that aeration and frequent cultivation are the key to utilize these nutrients.
Chapman, Charles C., "Citrus Notes-Fertilizers" (2014). Charles C. Chapman Citrus Speeches. 10.