Chemistry ProjectFertilizer

By : Alex, Calvindo, Nisia, Vanessa, Virginia

What is fertilizer ?• Fertilizer is a material that is added to the growing media and

plants to provide for the necessary plant nutrient so as to produce well

• In the fertilizer should be noted that given the amount of fertilizer

Benefits of fertilizers:

• 1. To fertilize plants• 2. Soil fertility• 3. Accelerate plant roots• 4. Increase the plant roots• 5. Extend the plant roots• 6. Strengthening of plant roots

Fertilizers based on origin

• Organic Fertilizer• Synthetic fertilizers

Natural fertilizers• Animal manure / dung• Green manure• Compost

Advantage using natural fertilizer

• Able to contributed mobilize nutrients already in the soil.• Cheap• Quality is better• Maintain soil moisture• Improve soil structure • Help prevent topsoil erosion which is a layer containing many

nutrients

Disadvantage using natural fertilizer

• Amount is limited• The growth of organic fertilizers for longer than chemical

fertilizers• Smell is bad

Advantage using synthetic fertilizers

• Elements contained quickly unraveled• More rapidly absorbed by plants• Fertilization is relatively easy to do• Intensive fertilizing plants easier , because chemical fertilizers

has been on a particular type of element

Disadvantage using synthetic fertilizers

• As rapidly decompose in nature , so as to obtain optimum efficiency of fertilization should correct dosage

• Time to fertilization must often because fertilizers is not stored long in growing media

• Relatively expensive• In the long term use can lower soil pH • Substances and excessive fertilizer not absorbed by plant

waste waters and can cause a population explosion of algae or water hyacinth