[en] Examples are given of design, layout and interpretation of field experiments using
isotopically labelled fertilizers. The experiments were carried out with rice, wheat, maize …

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 …

Fertilizers are one of the essential inputs which have to be used for maintaining and/or
increasing the soil fertility level in intensive agricultural systems. The purpose of applying …

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 …

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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 …

The possible uses of radioactive isotopes in soil and plant-nutrition research are briefly
reviewed, with special reference to the application of 32P to phosphates and to …

Inorganic nutrition of crops essentially concerns the uptake of nutrient ions from the soil-
plant system in which ions are continuously removed from the system at one end (the soil) …

Two questions of crucial importance both to the farmer and society are fertilizer use
efficiency and fertilizer loss by leaching and/or volatilization. A direct quantitative answer to …

Use of radioisotopes and labelled compounds for isotopic tracer techniques in problems
relating to fertiliser use, soil fertility and micronutrients has been described. The Bhabha …