| 不同基质和施肥类型对无土栽培生菜生长发育的影响 |
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| 作者姓名： | 佟小刚 蒋卫杰 尹明安 余宏军 |
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| 作者单位： | 西北农林科技大学园艺学院 杨凌712100
(佟小刚，尹明安)，中国农业科学院蔬菜花卉研究所 北京100081
(蒋卫杰)，中国农业科学院蔬菜花卉研究所 北京100081(余宏军) |
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| 基金项目： | 863项目(2004AA247010,2004AA247030)，国家攻关(2004BA521B01)，农业部蔬菜遗传与生理重点开放实验室资助 |
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| 摘 要： | 试验采用2种基质,3种不同的施肥类型对生菜进行盆栽试验。结果表明:与全无机肥和全有机肥比较,无机 有机肥处理在两种基质中均能显著增加生菜叶鲜重和茎粗,并且生菜叶数、根鲜重、根系活力、叶绿素含量是各处理中最高的。全无机肥与全有机肥对于生菜根鲜重、叶数、叶鲜重、叶绿素含量影响并无显著差异。在两种基质中全无机肥处理的生菜根系活力显著高于全有机肥处理,但其在混合基质中栽培生菜的茎粗显著低于全有机肥处理。混合基质栽培生菜的根系活力、叶绿素含量均高于无机基质,而且与无机基质相比还极显著的增加了生菜的叶鲜重和叶数。以上结果说明以有机肥配以一定的无机肥混施在混合基质中栽培生菜是提高生菜产量的有效方式。
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| 关 键 词： | 施肥类型 无土栽培基质 生菜 |
Effects of Different Substrates and Fertilizer Type on Growth of Lettuce in Soilless Culture |
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| Authors: | Tong Xiaogang Jiang Weijie Yin Mingan Yu Hongjun |
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| Institution: | 1. Horticultural college of Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100; 2. Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081 |
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| Abstract: | The pot experiment of lettuce was carried out with an application of two kinds of substrates and three types of fertilizer. The results indicated that a number of leaves?fresh weight of root root activity and leaf chlorophyll content of lettuce fertilized with complex of organic fertilizer plus inorganic fert, ilizer were best in the two substrates and it significantly increased fresh weight of leaf and diameter of shoot compared with only application of organic fertilizer or inorganic fertilizer. There were no significant differences on fresh weight of root ?number of leaves?fresh weight of leaf?leaf chlorophyll content between only organic fertilizer and only inorganic fertilizer in the two substrates. The root activity of lettuce fertilized with only inorganic fertilizer was significantly higher than the treatment of only organic fertilizer, but the diameter of shoot of lettuce fertilized with only inorganic fertilizer in mixed substrates was significantly lower than the treatment of only organic fertilizer. The root activity and leaf chlorophyll content of lettuce grown in mixed substrates were higher than those inorganic substrates, moreover, it significantly increased the fresh weight of leaf and a number of leaves. Therefore, lettuce was fertilized with organic fertilizer and inorganic fertilizer in mixed substrate is effective to improve yield. |
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| Keywords: | Fertilizer type Soilless culture substrates Lettuce |
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