| 查看: 1333 | 回复: 6 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
759986494金虫 (著名写手)
|
[求助]
翻译？难
|
||
|
Differential response to tree fallows in rotational woodlot systems in semi-arid Tanzania: Post-fallow maize yield, nutrient uptake, and soil nutrients |
回复此楼» 收录本帖的淘帖专辑推荐
 精品翻译集锦 |
» 猜你喜欢
filecode，4个jtjc了
已经有17人回复
-
号外号外
已经有5人回复
-
能否退出参与的面上项目解除限项
已经有22人回复
-
人气不行了
已经有9人回复
-
没有任何消息-是不是就凉了
已经有6人回复
-
如果此刻你正在为国基感到焦虑，不妨来听听这首《基金之外》
已经有5人回复
-
2026国自然函评费到账
已经有19人回复
-
建议基金发布提前给出明确的时间点
已经有16人回复
-
今日不放榜？网传国自然预计 8 月 27 日可查结果
已经有21人回复
-
估计是周四
已经有4人回复
terry_well
荣誉版主 (知名作家)
笑熬浆糊——满脑浆糊
- 翻译EPI: 160
- 应助: 207 (大学生)
- 贵宾: 1.508
- 金币: 3769.8
- 散金: 9654
- 红花: 229
- 沙发: 11
- 帖子: 5857
- 在线: 601.1小时
- 虫号: 352600
- 注册: 2007-04-22
- 性别: GG
- 专业: 燃烧学
- 管辖: 留学生活
2楼2011-11-29 21:54:14
759986494
金虫 (著名写手)
- 应助: 12 (小学生)
- 金币: 4691.9
- 散金: 473
- 红花: 15
- 帖子: 1552
- 在线: 609.3小时
- 虫号: 1354306
- 注册: 2011-07-23
- 性别: GG
- 专业: 污染控制化学
3楼2011-11-29 22:39:43
terry_well
荣誉版主 (知名作家)
笑熬浆糊——满脑浆糊
- 翻译EPI: 160
- 应助: 207 (大学生)
- 贵宾: 1.508
- 金币: 3769.8
- 散金: 9654
- 红花: 229
- 沙发: 11
- 帖子: 5857
- 在线: 601.1小时
- 虫号: 352600
- 注册: 2007-04-22
- 性别: GG
- 专业: 燃烧学
- 管辖: 留学生活
4楼2011-11-29 23:21:47
terry_well
荣誉版主 (知名作家)
笑熬浆糊——满脑浆糊
- 翻译EPI: 160
- 应助: 207 (大学生)
- 贵宾: 1.508
- 金币: 3769.8
- 散金: 9654
- 红花: 229
- 沙发: 11
- 帖子: 5857
- 在线: 601.1小时
- 虫号: 352600
- 注册: 2007-04-22
- 性别: GG
- 专业: 燃烧学
- 管辖: 留学生活
【答案】应助回帖
|
Agroforestry tree species producing high quality litter may enhance post-fallow soil nutrient availability and crop yields through mineralization of soil organic matter and green manure. A split-plot field experiment was used to evaluate maize yield and soil N and P status after fallowing indigenous and exotic tree species of contrasting litter quality. Responses were compared with recommended inorganic fertilizer use. The objective was to assess efficacy of 5-year tree fallows in improving soil productivity to screen species for increased crop yield under rotational woodlot culture, an agroforestry system mainly used for on-farm fuelwood production in semi-arid Tanzania. Post-fallow maize yield and soil nutrients differed significantly among tree fallows. Low C:N and L:N ratios enhanced nutrient release from slash. Acacia polyacantha (indigenous) and Gliricidia sepium fallows doubled maize yield compared to the natural fallow probably due to high soil N and P levels resulting from net release by high quality foliage. First season maize yield was similar to that from combined N and P fertilizers indicating high capacity of the fallows to improve crop yields and reduce fertilizer inputs usually unaffordable to small-scale farmers. Comparatively low maize yield and soil N and P levels after exotic Acacia crassicarpa and Acacia mangium fallows were attributed to net N immobilization by poor quality litter during growing seasons. This study suggests that rotational woodlot systems utilizing tree species with high litter quality can improve both post-fallow maize yield and soil fertility as well as produce sufficient fuelwood. In this aspect, A. polyacantha would be the most appropriate species. (C) 2007 Elsevier B.V. All rights reserved. 应该是这个摘要.从摘要初步可以看出,作者想表达的是农林体系可以改善土壤结构,增加土壤各种营养元素含量,进而提高作物的产量,该文章主要讲的是如何利用能产生高质量营养废渣的树木对土壤进行改善,同时可以提供大量的木材燃料,polyacantha应该是最好的可以达到此种目的树种之一. |
5楼2011-11-29 23:28:24
古可ぷ
荣誉版主 (文坛精英)
- 翻译EPI: 323
- 应助: 91 (初中生)
- 贵宾: 16.835
- 金币: 19133.1
- 散金: 40372
- 红花: 275
- 沙发: 183
- 帖子: 25427
- 在线: 1083.6小时
- 虫号: 1034379
- 注册: 2010-06-02
- 性别: GG
- 专业: 药物设计与药物信息
- 管辖: 导师招生
6楼2011-11-29 23:36:59
jwdxbjzh
至尊木虫 (职业作家)
- 翻译EPI: 244
- 应助: 8 (幼儿园)
- 贵宾: 0.015
- 金币: 10699.3
- 散金: 437
- 红花: 30
- 帖子: 3868
- 在线: 1074.8小时
- 虫号: 611748
- 注册: 2008-09-25
- 性别: GG
- 专业: 生物无机化学
7楼2011-12-02 10:01:39
20