Abstract: We make a review of the importance of Phosphorus manure (P) as an environment contaminant and its relationship with organic and sustainable agriculture. The P elimination pathway related with intensive livestock production in described as well as the soil harmful effect. The natural resistance against high levels of soil P shown by some plants is pointed out. Also, procedure to reduce manure P excretion. The poor handling of livestock manure coming out from intensive farming has a very high P contents with represent a dangerous challenge to the environment. Two main tools are available to reduce for P harmful effect one are the phytase inclusion in feed stuffs and two the growing of P resistant plants.