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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 ...
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 ...