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THE EFFECTS OF K FERTILIZING ON N CONTENTS IN TOBACCO LEAVES

Xuhua Li

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Abstract

The effects of K fertilizer, on N content in Tobacco leaves are studied. The results show: N contents in Tobacco leaves appear significantly decreasing when K ferfilizers were added in the middle and Later grouth periods. The decreasing range is related to tobacco leaf position and amount of K base fertilizer. If abundant K fertilizer is applied in basic fertilizer form, it can increase N contents. With dressing K fertilizer in middle period, the N contents increase in tobacco leaves only can keep short period; but it may improve in harvest as long as higher amount of dressing K fertilizers. Spraying K 2SO 4 can N Tobacco leaves, but it may be no difference in harvest. K fertilizer can decrease ratio of N/K 2O.

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What this paper is about

The effects of K fertilizer, on N content in Tobacco leaves are studied. The results show: N contents in Tobacco leaves appear significantly decreasing when K ferfilizers were added in the middle and Later grouth periods. The decreasing range is related to tobacco leaf position and amount of K base fertilizer. If abundant K fertilizer is applied in basic fertilizer form, it can increase N contents. With dressing K fertilizer in middle period, the N contents increase in tobacco leaves only can keep short period; but it may improve in harvest as long as higher amount of dressing K fertilizers. Spraying K 2SO 4 can N Tobacco leaves, but it may be no difference in harvest. K fertilizer can decrease ratio of N/K 2O.

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Available abstract

The effects of K fertilizer, on N content in Tobacco leaves are studied. The results show: N contents in Tobacco leaves appear significantly decreasing when K ferfilizers were added in the middle and Later grouth periods. The decreasing range is related to tobacco leaf position and amount of K base fertilizer. If abundant K fertilizer is applied in basic fertilizer form, it can increase N contents. With dressing K fertilizer in middle period, the N contents increase in tobacco leaves only can keep short period; but it may improve in harvest as long as higher amount of dressing K fertilizers. Spraying K 2SO 4 can N Tobacco leaves, but it may be no difference in harvest. K fertilizer can decrease ratio of N/K 2O.

Key concepts: Fertilizer, Tobacco leaf, Horticulture, Significant difference, Chemistry, Mathematics, Agronomy, Biology

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