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Journal of Drainage and Irrigation Machinery Engin  2019, Vol. 37 Issue (5): 454-460    DOI: 10.3969/j.issn.1674-8530.18.1248
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Effects of film-uncovering time on soil enzyme activity and maize nitrogen uptake under drip irrigation
ZHANG Shoudu, LI Yanfeng*, LI Jiusheng
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100048, China

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