New Methods for Filbert Objective Yield Estimation

William H. Wigton and William E. Kibler

Journal of Agricultural Economics Research, 1972, vol. 24, issue 02, 12

Abstract: Filbert estimating techniques can be improved by using refined procedures for selecting sample limbs and counting nut clusters. These procedures can reduce survey cost 25 percent and improve sampling and nonsampling errors. Counting nut clusters for two terminal limbs (4 percent of an average tree) by stripping them from limbs reduced counting errors considerably, compared with on-the-limb counts for primary limbs (15 percent of an average tree). The total cross-sectional area of primary limbs is inexpensive to obtain and can be used efficiently in a double sampling survey design.

Keywords: Crop Production/Industries; Productivity Analysis; Research Methods/Statistical Methods (search for similar items in EconPapers)
Date: 1972
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/147015/files/3Wigton_24_2.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:uersja:147015

DOI: 10.22004/ag.econ.147015

Access Statistics for this article

More articles in Journal of Agricultural Economics Research from United States Department of Agriculture, Economic Research Service Contact information at EDIRC.
Bibliographic data for series maintained by AgEcon Search ().