organic food has more of the答案
Once found only in health food stores, organic food is now a regular feature at most supermarkets. And that's created a bit of a dilemma in the produce aisle.
On one hand, you have a conventionally grown apple. On the other, you have one that's organic. Both apples are firm, shiny and red. Both provide vitamins and fiber, and both are free of fat, sodium and cholesterol. Which should you choo? Get the facts before you shop.
What is organic farming?
The word "organic" refers to the way farmers grow and process agricultural products, such as fruits, vegetables, grains, dairy products and meat. Organic farming practices are designed to meet the following goals:
∙Enhance soil and water quality
∙Reduce pollution
∙Provide safe, healthy livestock habitats
∙Enable natural livestock behavior
∙Promote a lf-sustaining cycle of resources on a farm
Materials or practices not permitted in organic farming include:
∙Synthetic fertilizers to add nutrients to the soil
∙Sewage sludge as fertilizer
∙Most synthetic pesticides for pest control
∙Irradiation to prerve food or to eliminate dia or pests
∙Genetic engineering, ud to improve dia or pest resistance or to improve crop yields
∙Antibiotics or growth hormones for livestock
王宝钏血书Organic crop farming materials or practices may include:
∙Plant waste left on fields (green manure), livestock manure or compost to improve soil quality
∙Plant rotation to prerve soil quality and to interrupt cycles of pests or dia
∙Cover crops that prevent erosion when parcels of land are not in u and to plow into soil for improving soil quality
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∙Mulch to control weeds
∙Predatory incts or inct traps to control pests
∙Certain natural pesticides and a few synthetic pesticides approved for organic farming, ud rarely and only as a last resort in coordination with a USDA organic certifying agent
Organic farming practices for livestock include:
∙Healthy living conditions and access to the outdoors
∙Pasture feeding for at least 30 percent of livestock's nutritional needs during grazing ason
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∙Organic foods for animals
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Organic or not? Check the label
The U.S. Department of Agriculture (USDA) has established an organic certification program that requires all organic foods to meet strict government standards. The standards regulate how such foods are grown, handled and procesd.
Any product labeled as organic on the product description or packaging must be USDA certified. If it is certified, the producer may also u an official USDA Organic al.
我眼中的冬天The USDA makes an exception for producers who ll less than $5,000 a year in organic
foods. The producers must follow the guidelines for organic food production, but they do not need to go through the certification process. They can label their products as organic, but they may not u the official USDA Organic al.
