What is fertilizer for?
It helps put nutrients in the soil and this helps the plants in it to grow.
Three basic fertilizer types are organic fertilizer, slow release fertilizer, and soluble synthetic fertilizer. As a slow-acting fertilizer, organic fertilizer comes from plants and animal or human waste. Slow release fertilizer, known as WIN (water insoluble nitrogen), has a high nitrogen percentage and often does not require reapplication, while soluble synthetic fertilizer may require reapplication but proper application eliminates fertilizer burn.
A balanced complete fertilizer is the best fertilizer for avocado trees (Persea spp). Specifically, avocado trees benefit from equal intakes of nitrogen, phosphorus and potassium. They therefore favor balanced complete fertilizer. A complete fertilizer has all three of the macronutrients nitrogen, phosophorus and potassium. A complete fertilizer is balanced when the percentage weights of the macronutrient ingredients are equal, such as in 10-10-10 fertilizer.
One that's natural is what a substitute fertilizer is. A fertilizer tends to be defined as chemical, commercial, conventional or synthetic. So an example of a non natural fertilizer is the standard 'NPK' fertilizers that emphasize the macronutrients nitrogen, phosphorus, and potassium. An example of a substitute or natural fertilizer is compost or manure.
R. M. U. Suleman has written: 'Current fertilizer situation, 1981-82, and outlook, 1982-83 and 1983-84' -- subject(s): Fertilizer industry 'Prospects of fertilizer demand and supply in Pakistan' -- subject(s): Fertilizer industry, Fertilizers '1983-84 mid-year fertilizer review' -- subject(s): Fertilizer industry 'CAN (calcium ammonium nitrate)' -- subject(s): Fertilizer industry, Nitrogen fertilizers 'Pakistan' -- subject(s): Fertilizer industry