The Role of Groundwater Irrigation and Improving the Technical Efficiency of Wheat Farmers in Arid Areas of Northwest China —A Case Study in Minqin County, Gansu Province
Autor: | Masakazu Nagaki, Fuyan Ke |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | Agricultural Information Research. 18:91-97 |
ISSN: | 1881-5219 0916-9482 |
DOI: | 10.3173/air.18.91 |
Databáze: | OpenAIRE |
Externí odkaz: |