The objectives of this Bulletin are to collate up-to-date information on soil tillage requirements for soils in the tropics; to assess the impacts of different ways of tillage on soil, environment and crop productivity; and to outline criteria for developing environment-friendly and economically viable tillage techniques for sustainable use of soil and water resources

Some general charscteristics of farming in a tropical environment; Shifting cultivation systems; Fallow systems; Ley systems; Systems with permanent upland cultivation; Systems with arable irrigation farming; Systems with perennial crops; Grazing systems; General tendences in the development of tropical farm systems.

Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.

In large parts of the developed and developing worlds soil tillage by plough or hoe is the main cause of land degradation leading to stagnating or even declining production levels and increasing production cost. It causes the soil to become more dense and compacted, the organic matter content to be reduced and water runoff and soil erosion to increase. It also leads to droughts becoming more severe and the soil becoming less fertile and less responsive to fertiliser. This book brings together the key notes lectures and other outstanding contributions of the I World Congress on Conservation Agriculture and provides an updated view of the environment and economic advantages of CA and of its implementation in diferent areas of the World.

"'Published by the Sustainable Agriculture Research and Education (SARE) program, with funding from the National Institute of Food and Agriculture, U.S. Department of Agriculture."

The objectives of this Bulletin are to collate up-to-date information on soil tillage requirements for soils in the tropics; to assess the impacts of different ways of tillage on soil, environment and crop productivity; and to outline criteria for developing environment-friendly and economically viable tillage techniques for sustainable use of soil and water resources

Land And Soil Are Non-Renewable Natural Resources. The Nature Has Taken Thousands Of Years To Create An Inch Of Fertile Soil. Mismanagement Of This Precious Resource Is A Sin Against Nature And Will Play Havoc With The Fortunes Of The Country. Many Parts Of The Country Have Already Come To The Brink Of Devastation Through Injudicious Usages, Over Exploitation Of Natural Resources Resulting In Unsustainable Productivity Of Crops.Modern Concept Of Cropping System Is Based On The Principle Of Effective Utilization Of Soil Water, Nutrients And Light For Sustainable Crop Productivity. This Book Gives The Basic Principles And Broadly Accepted Definitions Terms Frequently Used In The Literature. A Short-Review Of The Cropping Systems Work Done In The Tropics, Particularly In India Is Presented.In This Revised Edition, Contents Of All The Chapters Have Been Revised To Give Orientation Towards Management Of Sustainable Crop Production Systems. A New Chapter On Farming System Is Also Added In Tune With The Latest Trends. Information Available On Perennial Crop-Based Cropping Systems, For Example High Density Multi Species Cropping Systems Involving Coconut And Arecanut Is Updated. The Various Management Aspects Of Sustainable Cropping Systems Are Discussed And The Research Methodology That Could Be Adopted Is Elucidated. Possible Future Lines Of Work Are Given In The Final Chapter.This Book Will Prove To Be Of Immense Value Not Only To The Research Workers But Also To The Teachers And Students And Above All Farmers And Individuals Who Are Desirous Of Improving Sustainable Crop Production Systems.

Continued population growth, rapidly changing consumption patterns and the impacts of climate change and environmental degradation are driving limited resources of food, energy, water and materials towards critical thresholds worldwide. These pressures are likely to be substantial across Africa, where countries will have to find innovative ways to boost crop and livestock production to avoid becoming more reliant on imports and food aid. Sustainable agricultural intensification - producing more output from the same area of land while reducing the negative environmental impacts - represents a solution for millions of African farmers. This volume presents the lessons learned from 40 sustainable agricultural intensification programmes in 20 countries across Africa, commissioned as part of the UK Government's Foresight project. Through detailed case studies, the authors of each chapter examine how to develop productive and sustainable agricultural systems and how to scale up these systems to reach many more millions of people in the future. Themes covered include crop improvements, agroforestry and soil conservation, conservation agriculture, integrated pest management, horticulture, livestock and fodder crops, aquaculture, and novel policies and partnerships.

Rainforests are rapidly being cleared in the humid tropics to keep pace with food demands, economic needs, and population growth. Without proper management, these forests and other natural resources will be seriously depleted within the next 50 years. Sustainable Agriculture and the Environment in the Humid Tropics provides critically needed direction for developing strategies that both mitigate land degradation, deforestation, and biological resource losses and help the economic status of tropical countries through promotion of sustainable agricultural practices. The book includes: A practical discussion of 12 major land use options for boosting food production and enhancing local economies while protecting the natural resource base. Recommendations for developing technologies needed for sustainable agriculture. A strategy for changing policies that discourage conserving and managing natural resources and biodiversity. Detailed reports on agriculture and deforestation in seven tropical countries.

A unique look at how the adoption of sustainable farming methods is being pursued throughout the world. This comprehensive book provides clear insight into research and education needs and the many points of view that come to bear on the issue of sustainability. Essential for agricultural leaders in research, education, conservation, policy making, and anyone else interested in creating an economically and environmentally sustainable agriculture worldwide.