|Title:||不同氮肥型態對南部菊花養分吸收之影響||Other Titles:||Effects of Nitrogen form on Nutrient Uptake of Chrysanthemum Grown in Winter Southern Taiwan||Authors:||黃裕銘
Huang, Yuh Ming
Cheng, Ching Sheng
Wu, Yu Long
|Keywords:||菊花;氮肥型態效應;養分吸收;Chrysanthemum fertilization;Nitrate effect;Soil effect||Issue Date:||Dec-1999||Publisher:||中華土壤肥料學會||Journal Volume:||2||Journal Issue:||4||Start page/Pages:||347-358||Source:||土壤與環境||Abstract:||
A pot experiment was conducted to investigate the effect of nitrogen form on the nutrient uptake of chrysanthemum grown in southern Taiwan. Nine treatments were set in the study, consisted of 0, 1, and 2 g-N/plant and 0, 40, 60, and 100% of nitrate-N at each level of nitrogen. Organic fertilizer (12.5 g/plant), super phosphate (1 /g-P2O5/plant) and potassium chloride (1.5 g-K2O/plant) were used. An acid and an alkaline soils were used and pots with four replications were put outdoor in a randomized complete block design.Comparing the nutrient status of treatment with no chemical nitrogen applied treatment to those of with, nitrogen content of shoot was highly significantly lower, but phosphorus and potassium contents were highly significantly higher at flower bud at 0.5 cm diameter. The effect of the organic fertilizer for Mainung (acid) soil was better than for Nanfun (alkaline) soil.For Mainung soil, nitrogen contents of shoots at 0.5 cm diameter flower bud, and of leaf, stem, and flower at cutting of 1 gram-N/plant treatments were significantly or highly significantly lower than those of 2 g-N/plant treatments. Contents of phosphorus, potassium, and calcium were also lowered but not all reached significant levels. High rate of nitrate caused lower potassium contents.For Nanfun soil, the N, P, K, Ca, and Mg contents of leaf, stem, and flower parts were higher of 2 g-N/plant treatments at cutting stage, however, only the difference of nitrogen reached significant level.Amount of N, P, K, Ca, and Mg nutrients needed for chrysanthemum after 0.5 cm bud were, 45%, 26%, 34%, 50%, and 41%, respectively. That suggests more ratio of nitrogen and potassium fertilizers shall be applied for this period.
|Appears in Collections:||(3)植物保護及園產品加工系|
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