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| 2018, Vol. 35(5): 66-72 DOI: | ||
| The Effect of Water and Land Resources Utilization Methods on the Technical Efficiency of Major Producers of Grain ——Based on the Survey Data of 697 Major Producers of Grain in Heilongjiang Province | ||
| ZHU Li-juan, ZHANG Gai-qing, ZHANG Jian-jie | ||
| School of Engineering Management and Real Estate, Henan University of Economics and Law, Zhengzhou 450046, China | ||
| Received 2018-09-18 Revised 2018-09-18 | ||
| Supporting info | ||
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