In order to study the effects of fertilizer treatments on hydraulic lift of root system and nutrient use efficiency of winter wheat under water stress,root systems were grown in two soil compartments with an upper soil layer(0~20 cm) and a deeper soil layer(20~60 cm).The soil moisture in upper and deeper layers was determined during wheat growing season.The results show that: 1) There was a distinct function of hydraulic lift for winter wheat during the whole growth period under topsoil-dry and subsoil-wet(...
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