IMPACT OF NANO-FERTILIZERS ON TUBER YIELD AND MORPHOLOGICAL TRAITS OF POTATO VAR. SPIRIT IN SEMI-ARID CONDITION
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Authors
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Mojtaba Nouraein
Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran.
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Dr. Mohsen Janmohammadi
Keywords:
nano-B, nano-Ca, nano-Zn, tuber yield, yield componentsAbstract
In recent years, the use of nano-fertilizers has gained attention for increasing agricultural
productivity, especially in potato cultivation. This study aimed to evaluate the effects of nano, bio,
and conventional fertilizers on tuber yield and key agronomical traits of the Spirit potato variety.
The experiment was performed using a randomized complete block design with three replicates. Six
nutritional treatments were tested: control, NPK, Mog biofertilizer, nano-chelated calcium (Nano-
Ca), nano-chelated zinc + boron (Nano-Zn+B), and a complete nano-chelated fertilizer. An effective
biplot approach (treatment × trait) was used to visualize interactions and assess relationships among
treatments, traits, and their combined effects. The first and second principal components explained
92% of the total variance. Among the measured traits; tuber weight per plant, leaf number per plant,
mean tuber weight, total tuber yield, number of tubers per plant, days to flowering, dry matter
content, and starch content, the complete nano-chelated fertilizer showed the highest performance.
Based on the ideal treatment biplot model, this fertilizer was closest to the ideal position, performing
best across all traits. It proved to be the most effective treatment for maximizing tuber yield,
followed by NPK, Nano-Zn+B, and Nano-Ca treatments. This study highlights the potential of
nano-fertilizers as an efficient and environmentally friendly approach to improving potato yield in
semi-arid regions. The results suggest that using complete nano-fertilizers can significantly enhance
agricultural practices in such areas, leading to higher yields and more efficient resource use.
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