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采用盆栽试验的方法来研究局部层次施P对小麦根系在土壤中生长和分布的影响,以探讨改变施肥方式增加中下层土壤中根系生长的可行性。
Pot experiments were conducted to study the effects of local application of P on the growth and distribution of wheat roots in soil so as to explore the feasibility of changing the fertilization mode to increase root growth in middle and lower soils.