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３ 年试验研究结果表明： 棉田留麦桩还草具有培肥改土、增温、保墒、提高产量等作用， 留桩高度以２５ｃｍ 左右效果较好
The result of 3 years experimental study shows that the effect of leaving soil with wheat pile and cultivating soil with fertilizing and soil modification, warming, preserving soil moisture and increasing yield is better. The pile height of about 25cm is better