Agriscience Fundamentals and Applications, 5th Edition by BURTON L. DEVERE


Agriscience basics and purposes, fifth variation is an introductory utilized technology textbook meant to be used in highschool agriculture courses. The textual content presents a broad-spectrum review of the rural and the industry-based sciences, together with simple rules of technological know-how as they follow to vegetation, animals, soils and meals. Agriscience basics and functions, fifth variation contents contains chapters that element the data age, traditional assets, built-in pest administration, plant sciences (including botany, plants, & ornamentals), animal technology, nutrients technology, and verbal exchange and administration. every one bankruptcy contains visible aids resembling colour photographs, sketches, diagrams, and tables. Agriscience basics and purposes, fifth variation, additionally identifies bankruptcy ambitions, overview fabrics, steered category actions, keywords, and net keyword phrases to lead student's in-depth research.

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Chemicals FIGURE 2-16 Spills of petroleum or chemicals in water environments cause severe damage to populations of wild animals and plants. (Courtesy of Getty Images) INTERNET KEY WORDS: human population growth Chemicals can have both helpful and harmful effects on living environments (Figure 2-15). Oil spills and industrial chemical discharges have caused serious problems in oceans, lakes, rivers, and streams (Figure 2-16). Improperly used chemical pesticides continue to threaten wildlife, fish, shellfish, beneficial insects, microscopic organisms, plants, animals, and humans.

Cultivated Blueberries Wild blueberries were enjoyed in early times when people had time to pick the tiny berries growing in the wild. But labor costs became too high to harvest such berries for sale. The solution was development of high-quality, large-fruited blueberry varieties from the wild. This started today’s new and valuable cultivated-blueberry industry. Nutritional Values Until recently, animal and human nutrition were based on poor methods of feed and food analysis. The problem was: How can one recommend what to feed or what to eat if the content of food for humans and crops for livestock cannot be accurately determined?

Today, major FIGURE 2-7 For much of the world’s population, even a single community source of safe water is a luxury. (Photo courtesy of Elmer Cooper) 23 UNIT 2 Better Living through Agriscience famines (widespread starvation) are still a fact of life and death. Even in the modern world, serious famines have occurred in various countries. United Nations scientist John Tanner concluded that, in theory, the world could feed itself; but in practice it could not. It is estimated that nearly a billion people are not getting enough food for an active working life.

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