John Andreas Widtsoe demonstrates an immense knowledge of soil and farming conditions; much of the advice in this classic manual remains useful and relevant to this day. An excellent collection of knowledge is united in this guidebook, which commences by setting out the concept and core principles of dry farming. Much of the Earth is covered by land which receives only modest rainfall each year; coupled with a lack of an underground water source and/or water rights, many landowners found themselves having to grow crops with dry farming methods. Widtsoe was one such farmer, and his knowledge of the land's properties would prove decisive in his success. The properties and composition of the soil are crucial in deciding what crops to grow, making maximum use of limited water resources in an unirrigated plot by encouraging the soil's water retention, and sowing seeds with methods to maximize germination are all important aspects of running a dry farm.
The Fifth Edition fully integrates the text with MasteringChemistry to provide an interactive and engaging experience.
NOTE: This edition features the same content as the traditional text in a convenient, three-hole-punched, loose-leaf version.
The text also fosters development of problem-solving skills while helping students visualize and understand concepts through figures, sample problems, and concept maps.
Study Guide for General, Organic and Biological Chemistry: Structures of Life
New problem-solving tools in this edition, including Try it First and Connect, urge readers to think critically about problem-solving while learning best practices. Personalize learning with Mastering Chemistry.
Modified Masteringchemistry with Pearson Etext -- Standalone Access Card -- For General, Organic, and Biological Chemistry: Structures of Life
Chemistry: An Introduction to General, Organic, and Biological Chemistry, Books a la Carte Plus MasteringChemistry with EText -- Access Card...
Masteringchemistry With Pearson Etext Standalone Access Card for Chemistry: An Introduction to General, Organic, and Biological Chemistry
General, Organic, and Biological Chemistry: Structures of Life, Pearson Etext
0321832922 / 9780321832924 General, Organic, and Biological Chemistry: Structures of Life, MasteringChemistry with Pearson eText -- Valuepack Access Card and Study Guide for General, Organic, and Biological Chemistry: Structures of Life, ...