[en] The Coordinated Fertilizer Research Programme was initiated in 1962 using isotopes
and radiation to study rice fertilization. The Joint FAO/IAEA Division of Atomic Energy in …

[en] The paper describes the ten coordinated research programmes implemented up to date
by the Soils, Irrigation, and Crop Production Section of the Joint FAO/IAEA Division of Atomic …

The value of nuclear and related techniques as a tool in maximizing nutrient utilization by
crops is discussed. Data coordinated research programmes in different countries using …

In this paper, fertilizer use efficiency is defined as the percentage of fertilizer nutrient applied
to a crop taken up by that crop. Information on the most efficient methods, times, and sources …

ABSTRACT FAO 1980 Fertilizer Bulletin No. 3 Maximizing the Efficiency of Fertilizer Use by
Grain Crops prepared by FAO Land and Water Development Division, AGL and Joint …

Fertilizers play a major role in increasing and stabilising the yield of different crops
throughout the world. In the farmersfield it is essential that fertilizer application to be made in …

The Food and Agricultural Organization of the United Nations and the International Atomic
Energy Agency established in 1964 a Joint FAO/IAEA Division, which is responsible for food …

Fertilizers are expensive and if not properly used can cause water pollution. Efficient use of
fertilizers is therefore of concern to both developing and developed countries. It is important …

Several studies on different crops using 15N-labelled fertilizers in irrigated and rainfed
conditions showed that N-fertilizer-use efficiency varied with crop, growth stage, season, and …

Abstract 15N enrichment of 1% or less gives sufficient accuracy for extensive economical
use in fertilizer experiments. The significance and limitations of isotope criteria such as …