1. 2018-10-31 This article is from ECHO Asia Note # 36. 介绍 土壤化学、物理学和生物学特征把土壤划分为高度适宜植物生长到高度不适宜植物生长。非常罕见能找到所有属性都高度适宜植物生长的原生土壤,尤其是在热带。但是,只要有充分的土壤厚度来提供一个足够深度和排水良好的根系区域,相应的改良和土壤属性管理能让几乎所有的土壤变得合适植物生长。甚至是自然状态下不肥沃的土壤和保水性特别低的土壤在合适的管理和投入之后都能有非常高的农作物产量。 土壤对植物生长的不利影响必须通过改良剂、物理处理(耕作)、改变土壤管理行为或这三种方式的组合来消除。例如,土壤板结只能通过翻耕土壤,...
  2. 2017-02-15 This article is from ECHO Asia Note #30 [编者注:Peter是一个在泰国清迈自由顾问,他是德国莱比锡的农业硕士。Peter是“山地项目(Upland program)”的前研究员,这是一个霍恩海姆大学(德国) 和清迈大学(泰国)的合作项目。他的联系方式是:peter.elstner@gmx.net 我们一直在寻找一个关于东南亚土壤的参考指南。过去不得不依靠很多东南亚国家 提供的土壤样本碎片, 这些指南数据多数比较陈旧,当然也没有互动。在这篇 文章中,Peter Elstner 研究了数字土壤地图,得出东南 亚7个主要土壤种类的结 论。...
  3. 2018-05-15 This article is from ECHO Asia Note # 35. Michael Shafer 博士身为美国罗格斯大学政治学退休教授,其于 2008 年创立了暖心基金会。在于 2013 年 ECHO 会议上首次了解到生物炭之后,暖心团队开始为小型农场主设计并测试改进型生物炭制造设备,其具有成本低、技术要求低的优势。在 2017 年,暖心团队因开发村级生物炭社会企业模型而获得世界能源全球奖(泰国)。该团队刚刚推出了一家以“Rak Din”品牌销售农民生物炭产品的社会企业。 在这篇文章中,Shafer 博士分享了他在发展中国家世界中实际使用生物炭的经验。...
  4. Why is organic matter important? What causes biological degradation? How can I assess my soil biology and how can I improve it? This training is the 4th in a series discussing soil science. This series of lectures and practical demonstrations gives a broad overview and introduction to some basic...
  5. This video is Session 2 part 1 of our ongoing training on "Introduction to Soil Science." This training gives a broad overview and introduction to some basic soil characteristics: phases (solid, liquid, gas), texture, density, structure, reaction (pH), plant-water relationships, organic matter,...
  6. Introduction to Tropical Soil Science covers the requirements of soil science courses taken by all diploma and degree level students in general agricultureand it provides a solid foundation for those going on to specialize in soil science. The theoretical physical, chemical and biological bases...
  7. One of the primary objectives of the symposium was to provide an opportunity for presentation of latest views regarding the availability of mineral nutrients in soils and mechanisms of absorption and translocation of these mineral nutrients by plants.
  8. The programme's purpose is to develop and test strategies for reducing environmental degradation and improving rural livelihoods along the forest margins of the tropcs. Its objectives are the development of improved land-use systems and policy recommendations capable of alleviating the pressures...
  9. This volume contains the papers presented at the Seminar on Soil Management and the Development Process in Tropical America. The papers present the experimental results and the points of view of 63 authors. The individual opinions of these authors were highly respected even accepting the risk of...
  10. As the crucible of life, the source and final resting place of everything that grows, soil inspires reverence not only in the peasant who derives his daily bread from it, but also in the scientist who contemplates its meaning as the place where life and death meet and exchange vital energies.Out...