| 秸杆覆盖对梨树树体营养及果实产量与品质的影响 |
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| 引用本文： | 张琳,袁德义,赵思东.秸杆覆盖对梨树树体营养及果实产量与品质的影响[J].中南林业科技大学学报,2005,25(4):71-75. |
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| 作者姓名： | 张琳 袁德义 赵思东 |
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| 作者单位： | 中南林学院 湖南株洲412006
(张琳，袁德义)，中南林学院 湖南株洲412006(赵思东) |
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| 基金项目： | 引进国际先进农业科技计划(948计划) |
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| 摘 要： | 为探讨南方梨园秸杆覆盖对梨树树体营养及梨果产量品质的直接影响,进行了梨园秸秆覆盖田间试验以及叶、果室内理化分析.结果表明:秸秆覆盖可使梨树单叶面积提高5.1%～8.4%、叶绿素含量15.4%、叶绿素a/b值2.53%,有利于增强树体的光合作用,促进树体生长发育;秸秆覆盖可使叶片中N、P、K含量提高12.3%～26.8%,同时也可提高其它矿质营养元素的含量,改善树体的营养水平;秸秆覆盖还有利于果实生长发育,可使单果重提高2.8%～5.4%,单株产量提高4.6%～10.2%;可提高果实的糖酸比、改善砂梨的风味,从而提高果实品质.
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| 关 键 词： | 果树栽培 秸秆覆盖 营养指标 产量品质 研究 |
| 文章编号： | 1000-2502(2005)04-0071-05 |
| 修稿时间： | 2005年5月11日 |
Effects of Straw Mulching on the Nutrient Conditions of Pear Tree and the Yield and Quality of Fruit in Southern Pear Orchard |
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| ZHANG Lin,YUAN De-yi,ZHAO Si-dong.Effects of Straw Mulching on the Nutrient Conditions of Pear Tree and the Yield and Quality of Fruit in Southern Pear Orchard[J].Journal of Central South Forestry University,2005,25(4):71-75. |
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| Authors: | ZHANG Lin YUAN De-yi ZHAO Si-dong |
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| Abstract: | Field test and physical and chemical assays were performed to investigate the effects of straw mulching on the nutrient conditions of pear tree and the yield and quality of fruit. The results show that the size of pear leaf was enlarged 5.1 to 8.4 percent, the chlorophyll content was increased to 15.4 percent, and the chlorophyll a/b of fresh pear leaf to 2.53 percent , which was propitious to improving photosynthesis of pear leaf, prompting the growth and development of pear tree. Straw mulching increased the content of nutrient elements of pear leaf 12.3 to 26.8 percent, ameliorating the nutrient conditions of pear tree. Straw mulching prompted the growth of pear fruit, increasing the weight of single fruit 2.8 to 5.4 percent and the yield of single pear tree 4.6 to (10.2) percent. Moreover, it improved the ratio of sugar to acid and ameliorated the flavor of pear, improving the quality of fruit. |
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| Keywords: | fruit cuiture straw mulching nutrient indexes yield and quality study |
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