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2. Crash Course (web series) - Wikipedia

   en.wikipedia.org/wiki/Crash_Course_(web_series)

   Crash Course (sometimes stylized as CrashCourse) is an educational YouTube channel started by John Green and Hank Green (collectively the Green brothers), who became known on YouTube through their Vlogbrothers channel. [2] [3] [4] Crash Course was one of the hundred initial channels funded by YouTube's $100 million original channel initiative.

3. Agricultural pollution - Wikipedia

   en.wikipedia.org/wiki/Agricultural_pollution

   Diffuse source pollution from agricultural fertilizers is more difficult to trace, monitor and control. High nitrate concentrations are found in groundwater and may reach 50 mg/litre (the EU Directive limit). In ditches and river courses, nutrient pollution from fertilizers causes eutrophication. This is worse in winter, after autumn ploughing ...

4. Agricultural cycle - Wikipedia

   en.wikipedia.org/wiki/Agricultural_cycle

   The agricultural cycle is the annual cycle of activities related to the growth and harvest of a crop (plant). These activities include loosening the soil, seeding, special watering, moving plants when they grow bigger, and harvesting , among others.

5. Crash course - Wikipedia

   en.wikipedia.org/wiki/Crash_Course

   Crash Course, a campaign in the video game Left 4 Dead; Crash Course, an alternative title for the video game Stunt Driver; Doritos Crash Course, a 2010 Xbox Live Arcade video game; Crash Course in Science, a post-punk band formed in 1979 in Philadelphia; Crash Course, a British band formed in 1977 which included member Pete Wylie

6. Roller (agricultural tool) - Wikipedia

   en.wikipedia.org/wiki/Roller_(agricultural_tool)

   The roller is an agricultural tool used for flattening land or breaking up large clumps of soil, especially after ploughing or disc harrowing. Typically, rollers are pulled by tractors or, prior to mechanisation, a team of animals such as horses or oxen. As well as for agricultural purposes, rollers are used on cricket pitches and residential ...

7. Farm crisis - Wikipedia

   en.wikipedia.org/wiki/Farm_crisis

   A farm crisis is an American term for a time of agricultural recession, low crop prices and low farm incomes. The Interwar farm crisis was an extended period of depressed agricultural incomes from the end of the First to the start of the Second World War. The most recent US farm crisis occurred during the 1980s. [1] [2] [3]

8. Agricultural engineering - Wikipedia

   en.wikipedia.org/wiki/Agricultural_engineering

   Agricultural engineering, also known as agricultural and biosystems engineering, is the field of study and application of engineering science and designs principles for agriculture purposes, combining the various disciplines of mechanical, civil, electrical, food science, environmental, software, and chemical engineering to improve the efficiency of farms and agribusiness enterprises [1] as ...

9. Agricultural economics - Wikipedia

   en.wikipedia.org/wiki/Agricultural_economics

   Agricultural economics is an applied field of economics concerned with the application of economic theory in optimizing the production and distribution of food and fiber products. Agricultural economics began as a branch of economics that specifically dealt with land usage. It focused on maximizing the crop yield while maintaining a good soil ...