Theme 04: Soil Fertility and Plant Nutrition
Publication Date
2001
Location
Brazil
Description
Phosphorus (P) fertilizer is required to sustain productive pastures in Australia, yet optimum P fertility is poorly defined. A large farmlet study involving 10 herds was established in 1995 to determine the relationship between milk production and pasture response to four different P fertilizer rates, at three stocking rates. Pasture growth significantly increased with increasing P fertilizer rate. Cumulative milk production from pasture over 4 years, was significantly affected by P fertilizer, but responses diminished with increasing P rate. The results from this study will enable a better targeting of P fertility levels for profitable milk production from temperate dairy pastures and minimise the environmental impact of excess P fertilizer use.
Citation
Gourley, C. J. P.; Awty, I.; O'Doherty, M.; and Aarons, S. R., "Phosphorus Fertilizer Requirements for Temperate Dairy Pastures and Milk Production in South Eastern Australia" (2001). IGC Proceedings (1985-2023). 10.
(URL: https://uknowledge.uky.edu/igc/19/4/10)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Phosphorus Fertilizer Requirements for Temperate Dairy Pastures and Milk Production in South Eastern Australia
Brazil
Phosphorus (P) fertilizer is required to sustain productive pastures in Australia, yet optimum P fertility is poorly defined. A large farmlet study involving 10 herds was established in 1995 to determine the relationship between milk production and pasture response to four different P fertilizer rates, at three stocking rates. Pasture growth significantly increased with increasing P fertilizer rate. Cumulative milk production from pasture over 4 years, was significantly affected by P fertilizer, but responses diminished with increasing P rate. The results from this study will enable a better targeting of P fertility levels for profitable milk production from temperate dairy pastures and minimise the environmental impact of excess P fertilizer use.
