High Photosynthetic Efficiency and Drip Irrigation under Mulch Applied to Corn in the Northeast Region of China

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Gao, Jin-Hua^1 ; Bai, Yu^2

College of Water Resources and Environmental Engineering, Changchun Institute of Technology, Changchun

130012, China^1

Wuhan University, School of Water Resources and Hydropower Engineering, Wuhan

430072, China^2

关键词: Changchun cities;    Corn cultivation;    Correlation equation;    Drip irrigation under mulches;    Natural conditions;    Northeast regions;    Photosynthetic efficiency;    Water consumption;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032053/pdf
DOI  :  10.1088/1755-1315/237/3/032053

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A new type of corn cultivation, high photosynthetic efficiency and drip irrigation under mulch, is presented for the unique geographical and natural conditions in northeast China. The plans of 2014 and 2015 were measured in Lvyuan District, Changchun City. The results show that the influence of the different irrigation lower limits for each growth stage on corn production: Tasselling > knee-high >mature; the corn yield of high photosynthetic efficiency and drip irrigation under mulch treating is increased by 47% over traditional treating and the water consumption is increased by 63%. The correlation equation of different additional nitrogen fertilizer amounts, different irrigation lower limits of water content and yield of corn is measured: The interaction between irrigation lower limit at knee-high stage and mature stage is inhibited; the interaction between irrigation lower limit at knee-high stage and different additional nitrogen fertilizer amount is inhibited; the interaction between irrigation lower limit at mature stage and different additional nitrogen fertilizer amount is synergistic. Therefore, it is a useful way to gain higher yield by taking the new type of corn cultivation.