Description : The book covers the various aspects of the use of pesticides, their behavior, degradation, and impacts in wetland ricefields, and presents the results of surveys conducted in the Philippines and Thailand. It includes both bibliographic reviews and selected aspects of the experimental results of a research project on pesticide impacts in wetland ricefields. The first phase of the `Pesticide Impact' project was developed in the Philippines from 1989 to 1991. It was a multidisciplinary/collaborative approach involving scientists from IRRI, NRI (England), ORSTOM (France), UPLB (Philippines) who studied the effects of pesticides on the environment and on farmers' health, and the economical aspects of their use.
Description : Evolutionary science is not only one of the greatest breakthroughs of modern science, but also one of the most controversial. Perhaps more than any other scientific area, evolutionary science has caused us all to question what we are, where we came from, and how we relate to the rest of the universe. Encyclopedia of Evolution contains more than 200 entries that span modern evolutionary science and the history of its development. This comprehensive volume clarifies many common misconceptions about evolution. For example, many people have grown up being told that the fossil record does not demonstrate an evolutionary pattern, and that there are many missing links. In fact, most of these missing links have been found, and their modern representatives are often still alive today. The biographical entries represent evolutionary scientists within the United States who have had and continue to have a major impact on the broad outline of evolutionary science. The biographies chosen reflect the viewpoints of scientists working within the United States. Five essays that explore interesting questions resulting from studies in evolutionary science are included as well. The appendix consists of a summary of Charles Darwin's Origin of Species, which is widely considered to be the foundational work of evolutionary science and one of the most important books in human history. The five essays include: How much do genes control human behavior?What are the ghosts of evolution?Can an evolutionary scientist be religious?Why do humans die?Are humans alone in the universe
Description : Rice is the food crop the world depends on most. In Feeding a Hungry Planet, James Lang demonstrates how research has benefited rice growers and increased production. He describes the life cycle of a rice crop and explains how research is conducted and how the results end up growing in a farmer's field. Focusing on Asia and Latin America, Lang explores lowland and upland rice systems, genetics, sustainable agriculture, and efforts to narrow the gap between yields at research stations and those on working farms. Ultimately, says Lang, the ability to feed growing populations and protect fragile ecologies depends as much on the sustainable on-site farm technologies as on high-yielding crop varieties. Lang views agriculture as a chain of events linking the farmer's field with the scientist's laboratory, and he argues that rice cultivation is shaped by different social systems, cultures, and environments. Describing research conducted by the International Rice Research Institute in the Philippines and by the International Center for Tropical Agriculture in Colombia, he shows how national programs tailor research to their own production problems. According to Lang, the interaction of research programs, practical problem solving, and local extension efforts suggests a new model for international development.
Description : This text quantifies the impact of climate change on rice production using crop simulation models, and integrates existing knowledge of the effects of increased levels of carbon dioxide and temperature