In order to study the relationship between yield, maize ear treats and organ matter, N-OH, available P and K, we selected field block with different soil nutrition in Mei county, Shaanxi province.

在陕西眉县选择农田土壤养分含量不同的地块，研究不同含量的有机质，碱解氮、速效磷、速效钾与玉米果穗穗部性状及产量的关系。

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The radical county with abundant strength carbon, reasonable price, excellent service with many enterprises to establish a long-term cooperative relationship.

温县清源活性炭厂以雄厚的实力、合理的价格、优良的服务与多家企业建立了长期的合作关系。

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"I don't believe you're going to find any biological relationship between the (shooter) and the victims, " Blair County District Attorney Richard Consiglio said, adding the three victims "were not immediate family" of one another.

CNN: 4 dead, including shooter, in central Pennsylvania