Improvements of nitrogen use efficiency (NUE) may be achieved through the use of sensing
tools for N status determination. Leaf and canopy chlorophyll, as well as leaf polyphenolics …

Under‐as well as overfertilization with nitrogen (N) will result in economic loss for the farmer
due to reduced yields and quality of the products. Also from an ecological perspective, it is …

Improving nitrogen use efficiency is important for the potato crop, because of its relatively
low ability to take up available soil mineral nitrogen (N). Splitting of N fertilizer application is …

In a three-year field experiment in Toulouse (in Southwest France), two indicators of plant
nitrogen (N) status were compared on five durum wheat cultivars: the normalized SPAD …

Nitrogen (N) management is critical in optimizing potato yield and quality and reducing
environmental pollution. Six N rates from 34 to 270kgha− 1, and different timing of N …

Abstract SPAD-502 (Minolta Ltd, Osaka Japan), a hand-held chlorophyll meter is widely
used in the synchronization of N supply with actual crop demand, however it is also known …

Nitrogen management strategies have been investigated for winter wheat grown under
humid Mediterranean conditions, in which a global N recommendation is adapted to the …

Estimation of leaf chlorophyll content (LCC) by proximal sensing is an important tool for
photosynthesis evaluation in high-throughput phenotyping. The temporal variability of crop …

Minimum NNI (Nitrogen Nutrition Index) values have been developed for each key growing
stage of wheat (Triticum aestivum) to achieve high grain yields and grain protein content …

We developed a practical system to improve crop N efficiency in potato (Solanum tuberosum
L.). It is based on a strategy that includes split applications of N fertilizer and the use of the …