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Report
A note on multi-stage sampling with list frames: the PARC/CIMMYT survey of wheat harvest technology
(PARC; CIMMYT, 1987)
In collecting farm-level data for the purpose of initiating social science research on selected cropping systems, many researchers in Pakistan use random sampling of villages with nonprobability sampling of farmers within ...
Book
Wheat harvest technology in Punjab's rice wheat zone: combines, laborers and the cost of harvest delay
(PARC; CIMMYT, 1987)
Combine-users in Punjab's rice-wheat zone tend to be large owner operators who harvest a total of over 20 hectares in either wheat or rice. Although a slightly higher proportion combine rice, those who combine wheat ...