Nitrogen, Phosphorus and Potassium Concentrations in Developing Maize Grains

Alföldi, Zoltán Péter; Pinter, L.; Feil, B.

doi:10.1111/j.1439-037x.1994.tb00167.x

Cited by 17 publications

(18 citation statements)

References 12 publications

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“…At maturity, P, K, and S contents in the maize grain were positively affected by the N rate. Similar N rate effects on maize grain N, P, and K were previously documented (Hanway, 1962b;Arnold et al, 1977;Feil et al, 1993;Alfoldi et al, 1994). Two points are noteworthy for all nutrients: (i) shoot nutrient concentrations declined rapidly from the R1 to R3 stages, and (ii) at different ear BM, the ear nutrient concentration displayed a narrow variation range, thus reflecting a conservative feature (similar to the leaf nutrient concentration during the vegetative phase).…”

Section: Plant Components: Phosphorus Potassium and Sulfursupporting

confidence: 79%

Maize Nutrient Accumulation and Partitioning in Response to Plant Density and Nitrogen Rate: I. Macronutrients

et al. 2013

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Understanding nutrient balances in changing cropping systems is critical to appropriately adjust agronomic recommendations and inform breeding efforts to increase nutrient efficiencies. Research to determine the season‐long P, K, and S uptake and partitioning dynamics in maize (Zea mays L.) as affected by low, medium, and high plant density (PD) and N rate factors and their interactions was conducted over four site‐years in Indiana. Plant nutrient contents at maturity responded predominantly to N rate. Relative nutrient contents at silking compared with those at maturity were 47% for P, 100% for K, and 58% for S. Concentrations of P, K, and S varied less in leaf vs. stem (vegetative stage) and in ear vs. shoot (reproductive stage). Equivalent stoichiometric ratios were documented for N and S partitioning in leaf, stem, and ear components. The PD and N rate treatments did not modify P, K, and S nutrient partitioning to plant components during vegetative or reproductive periods (except for an N rate effect on leaf vs. stem P partitioning). Near silking, relative nutrient partitioning to the ear followed the order P > S > K. This mimicked the nutrient harvest indices observed at maturity, suggesting genetic modulation. Ratios of N to P, K, and S in whole‐plant tissues were influenced by N content changes in response to N rate but not by PD. As the season progressed, PD and N rates changed the absolute P, K, and S quantities (primarily reflecting biomass responses) but had little influence on nutrient ratios.

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Section: Plant Components: Phosphorus Potassium and Sulfursupporting

confidence: 79%

Maize Nutrient Accumulation and Partitioning in Response to Plant Density and Nitrogen Rate: I. Macronutrients

et al. 2013

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“…Kerkhoff et al (2006) reported that flowers and seeds are rich in mitochondria, which have a higher N and P contents. However, the present study showed that P contents were higher in the N0 treatment in both anthesis and harvest stages, consistent with Perring et al (2009) who found that nitrogen fertilizer could decrease plant P contents and suggested that grain P concentrations may be decreased significantly with increasing N addition (Alfoldi et al, 1994;Osborne et al, 2004;Bélanger et al, 2012). These different grain N and P concentration responses to N fertilization could be due to variations in soil N levels .…”

Section: Discussionsupporting

confidence: 67%

Influence of Nitrogen Fertilization on Wheat, and Soil Carbon, Nitrogen and Phosphorus Stoichiometry Characteristics

Zhong¹,

Yan²,

Xu³

et al. 2015

IJAB

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Nitrogen fertilizer is the most commonly fertilizer for increasing grain yield of wheat, but its effects on wheat carbon (C), nitrogen (N) and phosphorus (P) availability are not clear yet. This field experiment was conducted to evaluate the C, N and P stoichiometry characteristics of winter wheat and soil and their relationship during the anthesis and harvest stages under nitrogen fertilization (0, 180, 360 kg ha -1 ) in Northwest China. We found that N fertilization could increase N contents, C: P and N: P ratios and decrease P contents, C: N ratio in wheat. During anthesis, the highest N and P contents were found in the flag leaf and culm, respectively and at harvest, N and P contents were higher in the grain. N and P contents in all tissues of wheat were related, and more importantly, a significant relationship with the soil N and P contents was found, these results could help us understand the nutritional balance regulation in wheat under nitrogen fertilization.

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“…K concentrations present in ryegrass expressed on both a dry matter and tissue water basis remained within a narrow range irrespective of treatment or time (Jarvis et al 1990). The rate of N application had little impact on the K concentrations in ripe grains (Alfoldi et al 1994). These results show that K concentrations in the grain are well-buffered against increments in grain yield resulting from the application of N and are also relatively insensitive to low supplies of K in the soil (Alfoldi et al 1994).…”

Section: K Uptake and Content In Plants Under Variable N Regimesmentioning

confidence: 84%

“…The rate of N application had little impact on the K concentrations in ripe grains (Alfoldi et al 1994). These results show that K concentrations in the grain are well-buffered against increments in grain yield resulting from the application of N and are also relatively insensitive to low supplies of K in the soil (Alfoldi et al 1994). Contrary to these findings Rui et al (2009) reported that K was significantly lower in treatments with N fertilizer compared to a control without N fertilizer and a significant negative correlation (R) was observed between K and N fertilizer input −0.89.…”

Section: K Uptake and Content In Plants Under Variable N Regimesmentioning

confidence: 84%

Potassium nutrition of crops under varied regimes of nitrogen supply

et al. 2010

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Nitrogen (N) over-application is a serious problem in intensive agricultural production areas with consequent large N losses and environmental pollution. In contrast to N, potassium (K) application has been neglected in many developing countries and this has resulted in soil K depletion in agricultural ecosystems and prevented increases in crop yields. Nitrogenpotassium interaction is currently a topic of interest in many studies and the focus of this review is K nutrition under varied N regimes. Nitrogen form and application rate and time influence soil K fixation and release, as well as K uptake, transport, cycling and reutilization within crops. High yielding quality crops can be obtained by optimal N: K nutritional ratios. High rates of applications of N and K do not necessarily lead to increased yield increments and may even reduce yield. Yield response to K uptake depends on N nutritional status and the interaction is usually positive when NO 3 − -N is supplied. Antagonism between NH 4 + and K + in uptake was mostly attributed to simple competitive effects in the past while evidence showing mixednoncompetitive interactions existed. Two components of membrane transport systems for K uptake by plants are a high-affinity K + transport system which is inhibited by NH 4 + and a low-affinity K + transport system which is relatively NH 4 + insensitive. Potassium is highly mobile within plants but its flow and partitioning can change depending on the forms of N supply. NH 4 + nutrition in comparison to NO 3 − -supply results in more K translocation to leaves. A better understanding of the mechanism of N-K interaction can be a useful guide to best nutrient management in agricultural practice in order to achieve high yields with high nutrient use efficiency.

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Nitrogen, Phosphorus and Potassium Concentrations in Developing Maize Grains

Cited by 17 publications

References 12 publications

Maize Nutrient Accumulation and Partitioning in Response to Plant Density and Nitrogen Rate: I. Macronutrients

Maize Nutrient Accumulation and Partitioning in Response to Plant Density and Nitrogen Rate: I. Macronutrients

Influence of Nitrogen Fertilization on Wheat, and Soil Carbon, Nitrogen and Phosphorus Stoichiometry Characteristics

Potassium nutrition of crops under varied regimes of nitrogen supply

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