Nuclear Techniques in the Development of Fertilizer Practices for Multiple Cropping Systems. Summary of the Results of the Five-Year FAO/IAEA CO-Ordinated Research Programme on Nuclear Techniques in the Development of Fertilizer and Water Management Practices for Multiple Cropping Systems Carried out During the Years 1980 to 1985

摘要

This document summarizes the results of a coordinated research programme. Eight Member States of the FAO and IAEA carried out a series of field studies aimed at identifying optimum practices for the use of fertilizers in multiple cropping systems and for maximizing the contribution of atmospheric nitrogen biologically fixed by the legume component of such systems to the non-fixing cereal component or to the succeeding crop. Isotope techniques allowed the researchers to accurately determine the uptake of specific nutrients and to compare selected treatments. 11 references, 22 tables. (ERA citation 12:027570)