Related Experiment Videos
Organic farming in the corn belt
Science (New York, N.Y.)
|February 6, 1981
Summary
Midwest farmers not using synthetic fertilizers or pesticides share more similarities with conventional farmers than organic stereotypes suggest. Their farming methods, farm size, and profitability show minimal differences from conventional practices.
Area of Science:
- Agricultural Science
- Agronomy
- Sustainable Agriculture
Background:
- A small segment of Midwest farmers operate commercially without synthetic fertilizers and pesticides.
- This study investigates the characteristics of these non-conventional farmers.
Purpose of the Study:
- To compare farmers using minimal synthetic inputs with conventional and organic farming stereotypes.
- To analyze differences in farming practices, farm characteristics, and economic outcomes.
Main Methods:
- A 5-year study was conducted on Midwest farms.
- Comparative analysis of farming practices, farm size, labor, production, and profitability.
Main Results:
- Farmers using minimal chemicals share more traits with conventional farmers than organic stereotypes.
- Differences in practices, farm size, labor, production, and profitability were less than expected.
- Organic methods reduce fossil energy use and soil erosion but have variable effects on soil nutrients and grain protein.
Conclusions:
- Non-chemical farming practices in the Midwest are more aligned with conventional farming than previously assumed.
- While offering environmental benefits like reduced erosion, organic methods present mixed results for soil health and crop quality.
Related Concept Videos
01:27Microorganisms in Agriculture and Food industry
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
01:18Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
01:59Plant Breeding and Biotechnology
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
01:25Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
01:27Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
02:35Key Elements for Plant Nutrition
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the atmosphere, the...