摘要
[目的]基于辽西地区马铃薯生产过程中化肥用量过高、综合利用效率低下的现状,探索提高在辽西地区马铃薯复种大葱过程中的化肥利用效率的新方法。[方法]采用裂区大田试验,研究单膜种植马铃薯复种大葱全程测土配方施肥对作物产量及肥料利用率的影响。[结果]马铃薯产量数据、植株生理性状配方施肥处理要明显好于常规处理,配方施肥处理的氮、磷、钾肥料利用率均明显高于常规施肥处理;在上茬土壤养分明显养分积累基础上,大葱配方施肥处理在整个生育期氮、磷、钾的养分吸收比较合理,产量要明显好于常规施肥。[结论]从稳产,节约成本看,在试验施肥水平和技术配套条件下,全程配方施肥,是一种比较安全的减肥增效措施。
[Objective]Based on overuse of fertilizer and low comprehensive utilization efficiency during the potato production process in western Liaoning. Finding out new way to improve the fertilizer utilization efficiency in the process of multi-planting welsh onions in this region. [Methods]The field experiment was carried out to study the effects of whole-plant soil-measuring fertilization on crop yield and fertilizer utilization rate. [Results]Potato yield data and plant physiological traits in soil testing and formula fertilization were obviously were better than conventional treatment,the same as the nitrogen,phosphorus and potassium fertilizer utilization rates of soil testing and formula fertilization treatment was were significantly higher than that of conventional treatment. On the basis of previous crop soil nutrient,the absorption of nitrogen, phosphorus and potassium performed well under soil testing and formula fertilization during the whole growth period,which was more rational than conventional treatment,so as the yield of these two treatment. [Conclusion]Considering the perspective of stable production and cost saving,soil testing and formula fertilization during the whole process of crop growing,was a safer weightloss and efficiency-enhancing measure.
引文
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