Fertilizer using cow urine or cow manure mixture

摘要

PURPOSE:To prevent the foaming of bovine excretions and to effectively utilize the bovine excretions as a fertilizer resource by adding a nitrogen/phosphoric acid composite fertilizer of specific pH or above to the bovine excretions. CONSTITUTION:The nitrogen/phosphoric acid composite fertilizer of the pH not lower than 6.2 is added to the bovine urine or bovine excretions. The mixture of the bovine urine or bovine excretions to be used contain a potassium component at a high ratio but contains a nitrogen component at a lower ratio and contains substantially no phosphoric acid component or contains the phosphoric acid at an extremely slight ratio if this acid is contained when we consider the mixture as fertilizer elements. The N/P composite fertilizer to be added is, therefore, required to be the fertilizer which is particularly excessive in the content of the phosphoric acid and the amt. of the phosphoric acid to be added is required to be so determined as not to lose the balance of the three elements; nitrogen, phosphoric acid and potassium of the product. The important requirement of this method is to prepare the N/P composite fertilizer to be added to =pH6.2 in order to prevent the foaming. The fertilizer needs to be prepd. to =pH6.2 by using an alkali, such as NaOH, if the pH is lower than 6.2.