Phosphorus Fertilizers
Phosphorus is an essential nutrient for plant growth and development. It plays a critical role in the formation of roots, stems, and flowers, and is essential for energy transfer within the plant. While phosphorus is naturally present in the soil, it is often present in forms that are not easily accessible to plants.
These fertilizers come in various forms, including
01.
Rock PhosphateThis is a natural mineral that is mined from deposits of ancient marine sediments. Rock phosphate is a slow-release fertilizer, which means that it releases phosphorus slowly over time.
02.
Single Superphosphate (SSP)This is a manufactured fertilizer that is made by treating rock phosphate with sulfuric acid.
03.
Triple Superphosphate(TSP)This is a high-analysis fertilizer that contains more phosphorus than superphosphate. It is made by treating rock phosphate with phosphoric acid, which makes the phosphorus even more soluble and available to plants.
04.
Diammonium Phosphate (DAP)This is a manufactured fertilizer that contains both phosphorus and nitrogen. It is made by reacting ammonia with phosphoric acid. DAP is a good choice for crops that require both phosphorus and nitrogen.
What Are the Side Effects of Using Phosphate-Based Fertilizers?
Natural waterways face the biggest impact from the use of phosphates. Inorganic forms of this nutrient are most accessible to the plants, but they also wash out of the soil with rain and irrigation. This flushes the phosphates into creeks, streams, rivers, and lakes.
Excessive phosphate use backfires when you are aiming for soil fertility. While many soils are deficient in accessible forms of this nutrient, there is no way to reliable tell that you need fertilization without a soil test. Plant growth is slowed by phosphorus in soil, which inhibits iron and zinc absorption.
Another troubling side effect of using this fertilizers won’t affect you now, but it could change your options in the future. According to Yale’s Environment360 website, the the world’s supply of rock phosphorus is dwindling. When the mines run out, both farmers and home gardeners alike will no longer just pick up phosphorus in concentrated form.
phosphorus fertilizers play a vital role in plant growth and development, and they come in various forms.
Environment Effect
Excessive use of phosphorus fertilizers can lead to environmental problems such as soil and water pollution. Phosphorus can be lost from the soil through erosion or runoff, and excess phosphorus can contribute to the growth of algae blooms in bodies of water, which can be harmful to aquatic life.
To minimize environmental impact and optimize plant growth, it is important to apply phosphorus fertilizers at the right time, in the right amount, and using the right application method. This can be achieved through soil testing, crop nutrient management planning, and following best management practices. In some cases, alternative sources of phosphorus such as compost or manure can be used to reduce the need for synthetic phosphorus fertilizers.
Sources
Phosphorus exists in many natural substances, both plant and animal based. Compost and mulch are both good sources from the plant world. Animals contribute with manure and sewage, which can be added liberally to plants when planting and as a maintenance fertilizer as long as the products have been aged long enough. Phosphorus can also be purchased at nurseries either on its own or in a mix with the other main nutrients, nitrogen and potassium. It is the second nutrient in standard fertilizer mixes labeled as N-P-K.
