Some production constraints on major crops in Qian Dongnan autonomous prefecture, Guizhou province, people's republic of China
1992
Ming, Gu
This study is concerned with constraints of major crop productions in Qian Dongnan Autonomous prefecture. It focused on (1) identifying the major factors responsible for the potential yield: (2) determining the possibility and costs of to removing these constraints; and (3) prioritizing the agricultural research and guiding effective allocation of existing resources. Information was collected from farmers, experts, and other agricultural staff through questionnaire and interview. The major constraints in the prefecture were two parts: socio-economic and technical. The study is focused on the technical constraints. Among the technical problems, rapeseed diseases are the most important factor in terms of its Net Return on Research. Rice diseases and insects are ranked No.2 and No.3 respectively. Corn is the least important one among these three crops. It means more research is needed on rapeseed and rice. However, by comparing the share of crop values and net return on research with their research budget and research intensity, the study also shows that current allocation of research fund in Qian Dongnan is not efficient. The research system does not reflect the needs of the farmer in specific prefecture. Based on actual situation in the prefecture, the author concludes that further progress of agricultural research, depends upon, to a great extent, the effective use of research inputs.
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