【摘要】 1999~2004年在博州耕地土壤上进行了一次土壤养分调查,摸清了博州耕地土壤养分状况,与1982年土壤普查时相比,土壤有机质普遍下降,速效磷大幅度上升,有效氮有所增加,钾素严重亏损。微量元素中有效锌、硼变化不大,但有效铁、铜,特别是有效锰缺乏的比例大幅度上升,根据这一情况,通过大量田间试验、示范提出了合理的施肥建议。调整氮、磷比例,改进施肥方法,有针对性的补钾,补微量元素肥料,以满足作物对各种营养元素的平衡吸收。更多还原

【Abstract】 There was a survey of soil nutrient about tillage in Bozhou from 1999 to 2004.Comparing with the survey in 1982,the content of soil organic matter was declining universally,available P contents increased largely,available N contents increased a little,K wane severely and available Zn and B in microelement nearly had no change.But the content of available Fe and Cu,especially the proportion of lack of available Mn had a large increase.Based on this situation,fertilization proposal was put forward through a mount of field experimentation and demonstration.更多还原