Nitrogen fertilization for Bartlett pears
AuthorsA. A. Hewitt
J. A. Beutel
Authors AffiliationsAllan A. Hewitt is Lecturer in Pomology and Pomologist in the Experiment Station, University of California, Davis; James A. Beutel is Pomologist in Agricultural Extension, University of California, Davis; Omund Lilleland is Lecturer in Pomology and Pomologist Emeritus in the Experiment Station, University of California, Davis.
Hilgardia 21(12):4-5. DOI:10.3733/ca.v021n12p4. December 1967.
A leaf nitrogen content of 2.3% or higher in June should be considered their goal by pear growers, according to this study in Lake and Sacramento counties. Leaf analysis offers a good basis for determining whether sufficient nitrogen exists for adequate fruit set. Once this level has been obtained, an individual orchard evaluation is necessary to determine the minimum rate needed to maintain it. However, if higher levels are encountered, there need be little concern about adverse effects on fruit quality, but only that more money may have been spent for fertilizer than necessary.
Also in this issue:Christmas tree quality of white fir understory in a giant sequoia forest
Growth retardant tests on potted poinsettias
Weed control studies in strawberries
New pepper varieties
Bacterial blight eliminated from California cotton gins
Pea gravel envelopes for tile drains in Coachella Valley
Steam pressure processing of milo for growing-finishing pigs
The phloem of the sweet orange tree trunk and the seasonal production of xylem and phloem