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为明确温泉县农田土壤养分状况,2006—2012年结合国家测土配方施肥项目,对温泉县耕地土壤进行了一次土壤养分调查,摸清了温泉县耕地土壤养分状况,与1982年土壤普查时相比,总体上有机质普遍下降,速效磷大幅度上升,速效钾大幅度降低,微量元素中除了“缺锌”、“富铜”外,其他微量元素均处于“平”的状态。根据这一情况,通过大量田间试验与示范,提出了合理的施肥建议。调整氮磷比例,改进施肥方法,有针对性地补钾、补微量元素肥料,以满足作物对各种营养元素的平衡吸收。
In order to clarify the status of farmland soil nutrients in Wenquan County, a soil nutrient survey was conducted on the farmland soil in Wenquan County in 2006-2012 in conjunction with the national soil testing and formulated fertilization project to find out the status of soil nutrients in the farmland of Wenquan County. In general, the content of organic matter decreased generally, the content of available phosphorus increased sharply and the content of available potassium decreased significantly. All the trace elements except “zinc-deficient” and “copper-rich” were all in “flat” status. According to this situation, through a large number of field trials and demonstrations, put forward reasonable fertilization recommendations. Adjust the proportion of nitrogen and phosphorus, improve fertilization methods, targeted to make up potassium, trace elemental fertilizer to meet the crop’s balanced absorption of various nutrients.