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农学学报

农学学报 ›› 2011, Vol. 1 ›› Issue (8): 33-36.

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

早春施肥对油松生长与针叶内色素含量、净光合速率的影响

崔继光   

  • 收稿日期:2011-06-20 修回日期:2011-07-15 出版日期:2011-10-27 发布日期:2011-10-27

The Effect of Fertilization in Early Spring on Growth, Pigment Content and Photosynthetic Rate of Pinus tabulaeformis Carr.

  • Received:2011-06-20 Revised:2011-07-15 Online:2011-10-27 Published:2011-10-27

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摘要：

为了研究施肥对油松幼苗生长、色素以及净光合速率的影响，笔者在田间条件下，设置4个施肥处理，即FH1~FH4，氮肥用量分别是15、30、45、60 kg/hm2，磷肥用量分别是30、30、50、50 kg/hm2，钾肥用量分别是40、60、60、40 kg/hm2，1个对照，3次重复。结果表明：油松幼苗高度随施氮量增加而增加，FH2~FH4之间无显著差异，显著高于对照；FH3和FH4的根茎叶、总干物质积累量之间无显著差异，显著高于对照，除根系外，FH1、FH2以及对照之间无显著差异；所有施肥处理叶绿素a含量无显著差异，显著高于对照；FH2~FH4的叶绿素b含量均无显著差异，显著高于对照；FH3和FH4的类胡萝卜素含量之间无显著差异，显著低于对照；总叶绿素含量所有施肥处理之间无显著差异；FH3与FH4的净光合速率之间无显著差异，显著高于其他处理和对照。综合分析认为，FH3处理为最佳的施肥配比，FH4与FH2次之，生产中应用FH3处理较好。

关键词: 喜树碱, 喜树碱, 水培, 根系, 化感化合物

Abstract:

In order to study the growth, pigment content and photosynthetic rate of Pinus tabulaeformis Carr. under fertilization in early spring, the author tested under field conditions, set 4 fertilization treatments, that was FH1-FH4 nitrogen fertilizer were 15, 30, 45, 60 kg/hm2; amount of phosphate were 30, 30, 50, 50 kg/hm2; potash consumption were 40, 60, 60, 40 kg/hm2. A control, 3 times repeated. The results showed that: the seedling height of Pinus tabulaeformis Carr. increased with the amount of nitrogen, between FH2-FH4, was no significant difference, significantly higher than the control; dry matter accumulation of FH3 and FH4 was no significant difference, significantly higher than the control; chlorophyll a content of all fertilizer treatments was no significant difference, significantly higher than the control; chlorophyll b content of FH2-FH4 treatment was not significantly different, significantly higher than the control; carotenoid content of FH3 and FH4 treatment was no significant difference, significantly lower than the control; the total chlorophyll content were no significant differences in all fertilization treatments; photosynthetic rate of FH3 and FH4 treatment was no significant difference and significantly higher than other treatment and control. Comprehensive analysis, FH3 treatment as the best fertilizer ratio, FH4 and FH2 followed and then used FH3 treatment better in production process.