Csc 105 Study guides, Class notes & Summaries

Define the term weed. correct answer: A weed is a plant growing where it is not wanted i.e. Bermuda Grass - Front Lawn vs Corn Field List and briefly explain the 6 effects that weeds have on agriculture. correct answer: 1) Reduce the yield of cultivated crops (compete for essential nutrients) 2) Increase Production Costs (20% yield decrease = $28 billion) 3) Some weeds are Allelopathic (deadly chemical radius) 4) Devalue the Primary Crop (Purity Affected) 5) Can be detrimental ...

Agriculture in the 1600s-1700s (farm size, labor force, production methods) correct answer: Small farm size - 90% - Manual labor-Primarily hand labor-ax, hoe, shovel, sickle, scythe-grain cradle, animal labor, horse and mules. Agriculture in the 1800s (farm size, labor force, production methods) correct answer: Small to medium farms (large plantations in south) - 58% - Mechanical inventions developed for all phases of production, Horse powered equipment, and slaves used in the south - After...

Identify the two main crops discussed in the documentary, what pests threatened them, and where were they grown correct answer: Papaya - ringspot virus - hawaii Banana - banana wilt (bacteria) - uganda Match the primary individuals featured in the documentary to their qualifications/associations and their position on GMOs. correct answer: Individual - Association - Occupation - Education - GMO Margaret Wille - Hawaii County Council member - M.Ed Education - JD Law - against Jef...

What are the top 3 myths about organic production? Briefly describe each. correct answer: 1. Organic production doesn't use pesticides 2. Organic is healthier 3. Organic farming is better for the environment Organic production doesn't use pesticides correct answer: "Organic" doesn't mean non-toxic or safe. There are other pathogens associated with organic production. Organic is healthier correct answer: Not backed by scientific data. No evidence for any differences in content of ...

Identify the 2 main crops discussed in the documentary, what pests threatened them, and where they were grown. correct answer: Papaya, Ringspot Virus, Hawaii Banana, Banana Wilt (Bacteria), Uganda Names, Association, and Education for those against GMOs in the documentary. correct answer: Margaret Wille, Hawaii County, M.Ed. Education JD Law Jeffrey Smith, Institute for Responsible Technology, Attended Maharishi University of Management Zen Honeycutt, Moms Across America, B.A. Fash...

soybean correct answer: China/Japan rice correct answer: India sugar cane correct answer: Indonesia wheat,barley correct answer: near East sorghum correct answer: Africa potato, tomato correct answer: South America corn correct answer: Central America/Mexico sunflower correct answer: North America What 3 food groups form the perfect Triangle of Nutrition? correct answer: legumes, grains, vegetables list the 4 reasons international programs fail correct answer:...

s: farm size, % of labor force in agriculture, & production methods practices that defined the era correct answer: small farm size (10 acres), 90% of US labor force on farms, & manual labor (primarily hand labor) 1800s: farm size, % of labor force in agriculture, & production methods practices that defined the era correct answer: small to medium farm sizes, 58% of labor force on farms, & mechanical inventions s: farm size, % of labor force in agriculture, & production methods practices t...

Compare/Contrast the s, 1800s, and 1900s-2000 in terms of -Farm size -% of labor force in agriculture -Production methods practices that defined the era correct answer: 1600s-1700s: -small -90% -manual labor 1800s: -small to medium -58% -horse, mule, slave (pre civil war) and harvestors, reaping and threshing, steam powered engines (post civil war) 1900s-2000: -large -38% -mechanical power, synthetic chemicals (herbicides, pesticides, fertilizers) Depict the change in number...

What is organic agriculture? correct answer: Organic agriculture is a production system What are the top 3 myths about organic production? Briefly describe each. correct answer: 1. Organic production doesn't use pesticides 2. Organic is healthier 3. Organic farming is better for the environment What percentage of total cropland in Texas is organic certified? In the US? correct answer: 0.5% in Texas 1.5% in US Identify the two main crops discussed in the documentary, what pests th...