Open Science Research Excellence
Zhan Fengmei Yao and  Hui Li and  Jiahua Zhang g,  Analysis of Maize Yield under Climate Change, Adaptations in Varieties and Planting Date in Northeast China in Recent Thirty Years.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology. November 2015, vol. 107(11). 1145 - 1150[viewed 22 July 2019]. Available from: http://waset.org/publications/10002214.