The content of total potassium of soil in rhizosphere was lower than in the non-rhizosphere, the decreasing extent of total potassium in enrichment genotype was higher than in the common genotype.
籽粒苋根际土壤的全钾含量却低于非根际土壤，富钾基因型的降低幅度大于一般基因型。
The results showed that:1) The high content of nicotine, the low content of total nitrogen and potassium were found in central and south Henan tobacco-growing areas.
结果表明：1）豫中和豫南两个烟区烟叶的烟碱含量均偏高，总氮和钾含量偏低。
Available potassium and slow-released potassium contents were decreased, and total potassium content was changed insignificantly in the soil of mono-application of nitrogen fertilizer.
单施氮肥的土壤，速效钾、缓效钾含量均降低，全钾含量变化不明显。
Total potassium content of all varieties increased from Jul to Dec.
而全钾含量在整个测定期间呈持续升高趋势；
Different combined application fertilizer of potassium, calcium and magnesium had significant effect on the nutrients content and total uptake of nutrients.
钾、钙、镁肥不同配施对烟株养分含量和吸收量均有明显的影响。
Different combined application fertilizer of potassium, calcium and magnesium had significant effect on the nutrients content and total uptake of nutrients.
钾、钙、镁肥不同配施对烟株养分含量和吸收量均有明显的影响。
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