Leaf analyses of differentially covercropped deciduous fruit trees

E. L. Proebsting and J. G. Brown

Hilgardia, 1954, vol. 23, issue 5

Abstract: An examination of 1,470 graphs of seasonal changes in content of N, K, P, Ca, and Mg in leaves of four species of fruit trees over a three-year period produced certain conclusions: 1) nitrogen is high in the spring and decreases thereafter; 2) variations in potassium content are greater than in nitrogen; 3) phosphorous curves tend to follow the general shape of nitrogen curves for all fruits except the apricot; 4) calcium and magnesium contents are less affected by treatment, season, or species than the other elements; and 5) the differences shown here for unfertilized trees illustrate some of the factors to be considered in the use of leaf analyses as tools for diagnosing nutritional status.

Keywords: Crop; Production/Industries (search for similar items in EconPapers)
Date: 1954
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/381226/files/Proebsting.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:hilgar:381226

Access Statistics for this article

More articles in Hilgardia from California Agricultural Experiment Station
Bibliographic data for series maintained by AgEcon Search ().