Phosphate fertilization on nutritional status and growth of upland rice cultivars

C. A. C. Crusciol; L. Momesso; C. A. C. Nascimento

doi:10.1080/01904167.2019.1628971

Phosphate fertilization on nutritional status and growth of upland rice cultivars

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

NIOO - Microbial Ecology (ME)

Research output: Contribution to journal/periodical › Article › Scientific › peer-review

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Abstract

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 language	English
Pages (from-to)	1516-1528
Number of pages	13
Journal	Journal of Plant Nutrition
Volume	42
Issue number	13
DOIs	https://doi.org/10.1080/01904167.2019.1628971
Publication status	Published - 09 Aug 2019

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AU - Crusciol, C. A. C.

AU - Momesso, L.

AU - Nascimento, C. A. C.

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PY - 2019/8/9

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N2 - 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.

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Phosphate fertilization on nutritional status and growth of upland rice cultivars

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