Effects of different irrigation quantity on soil water and yield of no-tillage maize

• 作 者: ZhangDejian[1]LuZhanyuan[2]ZhangXiangqian[2]JingZhenju[3]YaoZhongjun[4]WangYufen[1]
• 机 构: Inner Mongolia University,Huhhot,Inner Mongolia,010021
• 出 处: 第二届植物需水与调控技术交流暨现代节水农业科技成果推介会
• 发表日期: 2012年期

　　In order to increase the emergence rate, yield and economical benefit of maize under conservational tillage, the effects of different irrigation quantity before sowing on emergence rate, soil water content, yield and economical benefit were studied.The results showed that: the emergence rate, water content in different soil layers, botanical characters, yield, total income and net income of irrigation with stubble leaving and irrigation with stubble breaking and rotary tillage all higher than that of no-irrigation with stubble leaving, and the emergence rate of irrigation with stubble leaving and irrigation with stubble breaking and rotary tillage increased by 5.48% and 6.38% than that of no-irrigation with stubble leaving.The soil water content in different soil layers showed an "M" trend.The yield of irrigation with stubble leaving and irrigation with stubble breaking and rotary tillage increased by 13.6% and 14.7% than that of no-irrigation with stubble leaving, the net income increased by 11.7% and 9.9% per mu.So irrigation before sowing can increase the emergence rate and yield of maize.