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- W2377332009 abstract "Objective The objective of this experiment was to study the effects of tillage on water consumption characteristics and grain yield of wheat under high-yield conditions by using the supplemental irrigation based on measured soil moisture,and to provide a scientific basis for water-saving and high-yield cultivation of wheat.Method This experiment was conducted under high-fertilized conditions during wheat growing seasons in 2007-2009 and water consumption amount,transpiration rate of flag leaf,leaf water use efficiency,grain yield and water use efficiency of wheat were analyzed by using five tillage styles which were strip rotary tillage(SR),strip rotary tillage after subsoiling(SRS),rotary tillage(R),rotary tillage after subsoiling(RS) and plowing tillage(P),respectively.Result The results showed that RS gained the highest total water consumption amount,followed by SRS and P which had no significant difference between them,while SR and R were lower than the above treatments.This indicated that total water consumption amount was significantly increased after subsoiling.The percentage of soil water consumption amount to total water consumption amount,the water consumption amount from anthesis to maturity stage and its water consumption percentage were the highest in SRS,and RS took second place,followed by P which was higher than SR and R.The above results indicated that SRS was beneficial for wheat to absorb soil water and improved the absorption of water during filling stage,which had favorable effect on grain filling.The percentage ofirrigation amount to total water consumption amount of SRS and SR was lower than others,in which SR was the lowest,however,RS and P were the highest,which had no significant difference between them,and R took second place.The leaf water use efficiency at middle and later filling stages of SRS and RS,which had no significant difference between them,were significantly higher than other treatments.SR and R had lower leaf water use efficiency than P.This illustrated that subsoiling had favorable impact on keeping high photosynthetic ability during middle and later filling stages.SRS and RS had the highest grain yield which had no significant difference between them,and P took second place,followed by SR and R.This illustrated that subsoiling was beneficial to improving the grain yield of wheat.SRS had the highest water use efficiency and irrigation benefit,and RS took second place.SR and R had lower water use efficiency and irrigation benefit than P.This illustrated that SRS had favorable effect on improving water use efficiency.Conclusion As far as high-yield and water-saving were concerned in the experiment,the most appropriate treatment for recommendation was the strip rotary tillage after subsoiling." @default.
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- W2377332009 date "2010-01-01" @default.
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- W2377332009 title "Effects of tillage on water consumption characteristics and grain yield of wheat." @default.
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