TAILIEUCHUNG - CMG GardenNotes #234 Organic Fertilizers

It is important to note that not all non-synthetic materials (natural) are allowable, nor are all synthetic materials excluded from use in organic production. Notable exceptions include insecticidal soap, a synthetic compound that can be used in pest control, and tobacco dust, a natural product that is not permitted. The Organic Materials Review Institute (OMRI) evaluates materials for use in organic agriculture and publishes their findings in the form of lists of allowable and prohibited inputs. The certifying agency, however, makes the final decision regarding what products can or cannot be used on the organic farm | Colorado Master Gardener Program Colorado Gardener Certificate Training Colorado State University Extension CMG GardenNotes 234 Organic Fertilizers Outline Terms page 1 Plant by-products page 2 Alfalfa meal or pellets page 2 Corn gluten meal page 3 Cottonseed meal page 3 Soybean mean page 3 Animal by-products page 3 Bat guano - high N page 3 Bat guano - high P page 4 Blood meal page 4 Bone meal page 4 Feather meal page 5 Fish emulsion page 5 Enzymatically digested hydrolyzed liquid fish page 5 Fish meal page 5 Fish powder page 6 Compost manure and biosolids based products page 6 Rock powders page 6 Colloidal phosphate page 6 Seaweed page 7 Kelp meal page 7 Kelp powder page 7 Liquid kelp page 7 Terms By legal definition the term fertilizer refers to a soil amendment that guarantees the minimum percentages of nutrients at least the minimum percentage of nitrogen phosphate and potash . An organic fertilizer refers to a soil amendment derived from natural sources that guarantees at least the minimum percentages of nitrogen phosphate and potash. Examples include plant and animal by-products rock powders seaweed inoculants and conditioners. These are often available at garden centers and through horticultural supply companies. These should not be confused with substances approved for use with the USDA National Organic Program NOP . The USDA NOP with its USDA Organic label allows for the use of only certain substances. The Organic Materials Review Institute OMRI at approves brand name products made with ingredients from the national list for use with the NOP. For details refer to nop and click NOP Regulations and then National List 234-1 Information . Many of the organic fertilizers listed here will meet NOP standards based on the National List . Growers participating in the NOP should consult with their certifier to ensure compliance for organic certification. The terms soil amendment refers to any material mixed into a soil. Mulch refers to

Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.