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 doping ions with various valences were selected to verify the charge compensation effect on the luminescence intensity as K and al seem to have similar charge compensation effect.

选择不同价态补偿离子掺杂是为了研究电荷补偿作用机制对该类材料发光性能的作用。

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According to the sequence characterization of zinc finger protein and other transcription factors, 58 EST sequences were selected from EST database of a 10 K rice cDNA chips.

我们根据锌指蛋白等转录因子特征结构域的序列特点，从来自10 K水稻芯片的EST数据库中筛选出编码58个EST序列。

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And harem-formation, which would have been an option in the past for many K-selected males, is frowned on these days.

ECONOMIST: The demographic transition: More or less | The

If anything, the tendency towards smaller, more socially successful families tends to feed back on itself over the generations, and the contribution of the K-selected to the gene pool therefore shrinks.

ECONOMIST: The demographic transition: More or less | The

The K-MAX was selected because it can carry over 2, 700kg, which is more than its unladen weight.

ECONOMIST: Autonomous helicopters