Phosphate fertilization on nutritional status and growth of upland rice cultivars

C. A. C. Crusciol (Corresponding author), L. Momesso, C. A. C. Nascimento

Research output: Contribution to journal/periodicalArticleScientificpeer-review

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Differences among rice genotypes demonstrate that root system of upland rice cultivars influences P acquisition and growth performance. We studied root and shoot growth and nutrition of traditional and modern cultivars of upland rice as affected by P availability (three rates). At the highest P rate, the greatest dry mass was obtained with Maravilha, which was on average 180% higher than Caiapo. The modern has exceeded the traditional in growth performance, besides accumulating more nutrients. Maravilha was more efficient in root and shoot growth, and nutrient absorption with P supply, using less photoassimilates for root growth. Traditional cultivars of upland rice may develop better than modern cultivars in low P availability, with facilitates its adaptation in soils with this condition. Modern cultivars are more responsive to P fertilization, which demonstrates a better option in a cropping system with P supply to aim at high yield.
Original languageEnglish
Pages (from-to)1516-1528
Number of pages13
JournalJournal of Plant Nutrition
Issue number13
Publication statusPublished - 09 Aug 2019


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