Author(s): Ma Xingxiang, Chen Lei, Wang Heling, Ding Wenkui, Li Ying, Ren Liwen, Institute of Arid- Meteorology CMA/ Key Laboratory of Arid Climate Change and Reducing Disaster/Key Open Laboratory of Arid Climate Change and Disaster Reduction CMA, Wuwei Agricultural Meteorology Experimentation Station of Gansu Province
Pages: 180-185
Year: 2014 Issue:  9
Journal: Chinese Agricultural Science Bulletin
Keyword:  irrigation water; corn dry matter; yield;
Abstract: Growth status and physiological changes of corn were studied with different irrigation quantity in order to research suitable irrigation amount of seed corn. The results showed that: different irrigation quantity had obvious effect to net assimilation rate and dry treatment seed material of corn, net assimilation rate was big and dry matter accumulation was much because irrigation quantity is much. Leaf area was big, plant growth was fast, height was the highest and contribution rate of water on yield was big, higher yield could be obtained in the irrigation times 5250 m3/hm2conditions. Irrigation water 5250 m3/hm2of corn whole growth period can be used as appropriate amount of water saving irrigation quantity in water shortage.