Soil Science Simplified PDF Download

Unbiased in approach, this book discusses the physical and chemical land and soil requirements needed to produce food and how economic, social, and political environments influence agricultural productivity. Presenting an array of soil and land properties and farming methods-ranging from slash and burn to highly technical practices-the author draws on his 40 years of worldwide experience to give readers a glimpse at the historical developments, natural resource concerns, and farming practices impacting human food production today.Presents the basics of how soils and land function and examines the impact of water, temperature and chemical elements on food production using minimal scientific terminology. Moves beyond explaining the physical and chemical requirements of human food production to encompass the economic, social and political factors that impact farming practices and overall productivity. Covers current farming methods being used in other countries, from the recent advances in farming on the poorest soils to the slash and burn farming in tropical jungles. Presents historical data to show how modern practices have reduced the cost of food and the amount of land needed to feed a growing population. Provides a strong foundation and makes later chapters on leaching, ground water contamination, floods and erosion easier to understand. Emphasizes the delicate balance of essential elements from the air and in the soil and presents the basic physical and chemical dynamics of the human food chain.Those looking for an easy to understand introduction to how and why various types of soil and land are used for human food production.