In the field we observed that takins licked snows or drank water directly to meet their water requirement.
野外见到羚牛以直接饮水或舔雪的方式来补充对水份的需求。
2
So studying on regularity of waterrequirement of melon growing in field has important sense to understand the upgrading yield and high quality of melon and raising the utilization ratio of water.
因此，研究甜瓜田间需水规律对理解甜瓜的优质高产，提高水分利用率具有重要意义。
3
Based on the analysis of field experimental data, crop waterrequirement and crop coefficient of straw-mulched summer maize are evaluated with dual coefficient approach recommended by FAO.