Phosphate Interaction with Uptake and Leaf Concentration of Magnesium, Calcium, and Potassium in Winter Wheat Seedlings

Reinbott, Timothy M.; Blevins, Dale G.

doi:10.2134/agronj1991.00021962008300060021x

Cited by 40 publications

(23 citation statements)

References 16 publications

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“…There was not a significant correlation between PO4-P and plant Ca or Mg concentration or Ca/P, K/(Ca + Mg), or K/Mg ratios for any of the harvests. These results are a reversal to the results of Reinbott and Blevins (1991) for winter wheat grown in low P, low pH systems.…”

Section: Resultscontrasting

confidence: 68%

“…Studies on low available P and acid to neutral soils have suggested that increasing soil solution P levels would decrease the 1C/(Ca + Mg) ratio in grasses (Reinbott and Blevins, 1991), however under the conditions of this study on basic calcareous soils with adequate P, there was no correlation between available soil P and the cation uptake rates except for K in the first cutting, which would tend to raise the K/(Ca + Mg) ratio, had other factors remained constant.…”

Section: Discussionmentioning

confidence: 99%

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Calcium, magnesium, and potassium uptake by crested wheatgrass grown on calcareous soils

Robbins

Mayland

1993

Communications in Soil Science and Plant Analysis

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Forage intake with potassium/(calcium + magnesium) [K/(Mg + Ca)] values in excess of 2.2 are associated with grass tetany and Mg deficiencies in ruminants. This study was conducted to determine the degree to which forage K and Mg concentrations and K/(Ca + Mg) ratios could be predicted from soil bicarbonate (HCO3) extractable phosphate-phosphorus (PO4-P), and saturation extract Ca, Mg, K, sodium (Na), and nitrate-nitrogen (NO3-N) concentrations.Crested wheatgrass (Agropyron spp) strains and cultivars representing four ploidy levels were grown in the greenhouse on eight calcareous soils with different saturation extract Ca, Mg, K and K/Mg ratios. The plants were harvested three times. Soil solution 1C/(Ca + Mg) and K/Mg ratios were the only measured soil parameters that showed a consistent correlation with plant K/(Ca + Mg) ratios. Bicarbonate extractable soil P was positively related to plant P and K uptake in the first harvest, but was not related in the second and third harvests nor was soil P related to plant Ca or Mg content. There was a tendency for the higher ploidy level entries to have higher plant K/(Ca + Mg) ratios. It was concluded that soil K/(Ca + Mg) ratios can be used to predict relative forage K/(Ca + Mg) ratios for grasses grown under similar conditions.

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Section: Resultscontrasting

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Calcium, magnesium, and potassium uptake by crested wheatgrass grown on calcareous soils

Robbins

Mayland

1993

Communications in Soil Science and Plant Analysis

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“…Concerning the differences in the nutrients uptake, the level of potassium on the shoots decreased with application of P. REINBOTT & BLEVINS (1991) also observed this reduction of K in wheat seedlings. The level of magnesium on the shoots increases with application of P, behavior already described in the literature (ADAMS, 1980;MALAVOLTA, 2004;ROBSON & PITMAN, 1983).…”

Section: Resultssupporting

confidence: 56%

Effects of arbuscular mycorrhizal fungi and doses of phosphorus on corn crop

Dantas¹,

Carvalho²,

Coelho³

2014

Científica

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Phosphorus is the most limiting nutrient for crop production in Cerrado soils. The arbuscular mycorrhiza is a symbiotic association with the roots, which involves the arbuscular mycorrhizal fungi and promotes benefits to the plants, as an enhanced capacity of absorbing nutrients from the soil, mainly phosphorus. This study was performed in a greenhouse at Embrapa Cerrados, Planaltina-DF, Brazil, and aimed to evaluate the influence of arbuscular mycorrhizal fungi and phosphorus doses in the yield of dry matter and in levels of phosphorus in the shoots of corn. A completely randomized experimental design with five treatments (doses of phosphorus and inoculation) and three repetitions was used. There were significant responses to the treatments with different doses of phosphorus. The inoculated treatment didn't differ significantly from the non-inoculated treatment with the same dose of the nutrient and from the treatment with application of 100 mg kg -1 of P. The treatment with mycorrhizae showed the higher levels of phosphorus in the leaves. The results showed an interaction between P and Mg, K and Mn, being the first a synergistic interaction and the two other, antagonistic. The phosphorus fertilization and the mycorrhizal inoculation provide increments in the level of phosphorus in the shoots.

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“…We reported that absorption of essential nutrient minerals was often enhanced by PTKPA in wheat and cabbage (Watanabe et al, 2002(Watanabe et al, , 2005. Reinbott et al (1991) and Skinner and Matthews. (1990) also observed an increase in absorption of Mg and Ca in wheat and grape plants under a high P condition.…”

Section: Mineral Contentmentioning

confidence: 99%

Reduction of Phosphatic and Potash Fertilizer in Sweet Corn Production by Pre-transplanting Application of Potassium Phosphate to Plug Seedlings

Watanabe

Murayama

Niino

et al. 2005

Plant Production Science

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: To develop a new fertilizing system with a reduced amount of phosphatic fertilizer in sweet corn production, we applied potassium phosphate to the plug seedlings before transplanting to the fi eld, and examined its effects on growth, yield, photosynthetic activity and absorption of minerals. The amount of phosphatic and potash fertilizers necessary to grow sweet corn could be reduced by the pre-transplanting KP application (PTKPA) to the plug seedlings. We considered the mechanisms involved in the reduction of P and K application rate by PTKPA as follows; 1) PTKPA increased the P content of plant, which accelerated the root establishment.2) The advanced root establishment not only reduced the duration of water stress, but also increased absorption of the essential nutrients such as N and Mg. 3) Higher content of N and Mg led to higher chlorophyll content and possibly protein content, which activated photosynthesis during the early growth stage. 4) Improved photosynthetic activities increased NAR during the early growth stage. 5) This increase in NAR accelerated leaf expansion, increasing LAI. 6) Larger LAI during the early growth stage led to larger LAI throughout the growing stage, resulting in a higher CGR and ear yield.

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Phosphate Interaction with Uptake and Leaf Concentration of Magnesium, Calcium, and Potassium in Winter Wheat Seedlings

Cited by 40 publications

References 16 publications

Calcium, magnesium, and potassium uptake by crested wheatgrass grown on calcareous soils

Calcium, magnesium, and potassium uptake by crested wheatgrass grown on calcareous soils

Effects of arbuscular mycorrhizal fungi and doses of phosphorus on corn crop

Reduction of Phosphatic and Potash Fertilizer in Sweet Corn Production by Pre-transplanting Application of Potassium Phosphate to Plug Seedlings

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