Nitrogen phosphorus nutrition possess very fine adjustment action on root system growth of wheat.
氮磷营养对小麦根系生长具有明显的调节作用。
The effect of root barrier on wheat growth and yield was studied in the system of poplar young growth intercropping with wheat by means of farm testing.
采用田间试验的方法，研究杨树幼林与小麦间作系统中，设置根障对小麦生长和产量的影响。
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