Organic fertilizer is usually made from plant or animal waste or powdered minerals. Examples include manure and compost, as well as bone and cottonseed meal. They are usually sold as “soil conditioners” rather than as fertilizer, because the nutrient ratios are difficult to guarantee. Organic fertilizers may be processed in a factory, or, in the case of manure and compost, at a farm.

Advantages of Organic Fertilizer:

In addition to releasing nutrients, as organic fertilizers break down, they improve the structure of the soil and increase its ability to hold water and nutrients. Over time, organic fertilizers will make your soil–and plants–healthy and strong.
Since they are the ultimate slow-release fertilizers, it’s very difficult to over fertilize (and harm) your plants.
There’s little to no risk of toxic buildups of chemicals and salts that can be deadly to plants.
Organic fertilizers are renewable, biodegradable, sustainable, and environmentally friendly.
Although rather expensive in packages, you can make your own organic fertilizer by composting or find inexpensive sources—such as local dairy farms—that may sell composted manure.

Disadvantages of Organic Fertilizer:

Microorganisms are required to break down and release nutrients into the soil. Since they need warmth and moisture to do their job, the effectiveness of organic fertilizer is limited seasonally. The good news is that these microorganisms obtain energy from decaying plant and animal matter, so an application of organic fertilizer provides a complete package of nutrients for your soil.

Organic fertilizers break down according to nature’s rules, so they may not release nutrients as soon as you need them. You have to be patient – you won’t see improvement overnight. In fact, you may actually see a deficiency in your plants during the first couple of months until the first application breaks down. Hang in there! You’ll most definitely be rewarded.
Nutrient ratios are often unknown, and the overall percentage is lower than chemical fertilizers. However, some organic products are actually higher in certain nutrients.



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