TENHUNEN@finujo.bitnet (05/15/89)
*********************************************************************** *Sender: AG-EXP-L Ag Expert Systems <AG-EXP-L@NDSUVM1> * *From: "Onno Knol, Agric.University Wageningen" <SAL@HWALHW50>* *Subject: decomposition of manure * *********************************************************************** A group of students in my department are modelling a dairy farm. They are interested in the decomposition process of manure, either put directly on the grassland from the cattle, or sprayed on it after storage in a silo. They are also interested in the breakdown of N from fertilizer. In fact the role of N in manure is the main interest. Has anybody ever modelled this process and who has any suggestions ? _______________________________________________________________________ Onno M. Knol Department of General and Vakgroep Algemene en Regional Agriculture Regionale Landbouwkunde Agricultural University Landbouwuniversiteit Hollandseweg 1 Hollandseweg 1 6706 KN Wageningen 6706 KN Wageningen THE NETHERLANDS Interne post: Bodenr 67 BITNET: SAL@HWALHW50 LUWRVD:SAL
P2269@COM.QZ.SE ("ENG-LEONG FOO ", MIRCEN-STOCKHOLM) (05/19/89)
Sorry I dont have a direct answer to your question, Onno but for others who might be interested to do some reading on faith of nitrogen on land, there is a unique book written in 1979 by Raymond C Loehr et al called "Land Application of Wastes" Vol. II. which is worth borrowing. Chapters are written in modules as an instructional unit for self-education. There is a chapter on "Nitrogen Considerations" as well as one for "Monitoring at Land Application Sites". The book is one of Van Nostrand Reinhold Environmental Engineering Series publications. From: Eng-leong Foo, Stockholm.