Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (3): 22-28.doi: 10.11924/j.issn.1000-6850.casb15080052

Special Issue: 小麦 农业气象

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Effect of Irrigation on Soil and Wheat Yield in Sichuan Under Drought Condition

  

  • Received:2015-08-10 Revised:2015-10-09 Accepted:2015-10-23 Online:2016-01-29 Published:2016-01-29

Abstract: In order to reduce the grain loss, the effective water saving cultivation of wheat in Sichuan under drought condition was studied. By conducting a field experiment in the hilly area in Mianyang, Sichuan, the author analyzed soil physical characteristics and wheat main agronomic characteristics and yield by three treatments including natural rainfall, artificial irrigation once and twice. The results showed that different irrigation treatments at different growth stages had different effects on soil physical characteristics and wheat agronomic characteristics. The difference of soil density, soil bulk density and soil water content among different treatments was small in wheat seedling and jointing stage, the effects of different treatments on soil density, soil bulk density, soil water content and wheat agronomic characteristics were great in flowering and maturity stages. In the hilly arid and semi-arid area, artificial irrigation once in jointing stage was the best treatment, which significantly increased winter wheat yield by 2113.46 kg/hm2 in comparing with the treatment of natural rainfall.

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