Interpretation of chemical plant analyses and control of nutrient status of growing plants exemplified by the tomato plant

Friis-Nielsen, Bodil

doi:10.1007/bf01349509

Cited by 7 publications

(2 citation statements)

References 14 publications

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“…It may be seen from the results obtained in Table 2 that the absorption of cations Ca, Mg and Na were generally affected by the presence of increasing amounts of applied K at 24 and 72 h of roots-soil contact. These results are in agreement with those of Italie (1948); Dorph-Petersen & Steenbjerg (1950);Larsen & Pierre (1953);Nielsen (1968Nielsen ( , 1969 and Addiscott & Mitchell (1970). Absorption of Ca and Mg by oat shoots in the present study, however, was hardly affected by increasing the amount of applied K at 168 h of roots-soil contact.…”

Section: Resultssupporting

confidence: 88%

Effect of potassium fertilizer on cation uptake and concentration in oat shoots

Ragab

1979

J. Agric. Sci.

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SUMMARYPot experiments were carried out using a system in which root mats were in contact with a Danish soil for 24, 72 or 168 h. Different rates of K fertilizer (0–80 mg K/100 g soil) resulted in marked responses at 168 h of roots–soil contact, however moderately or little responses at 72 or 24 h had occurred. Marked reciprocal K–Ca, K–Mg, K–Na relationships with yield response to rates of applied K were attributed to both dilution and antagonism. The latter was not apparently brought about by competition for the carrier binding site but from the unspecific replacement competition which occurred in the interior of plant cells and not in the outer surface of the cell root membrane.

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Section: Resultssupporting

confidence: 88%

Effect of potassium fertilizer on cation uptake and concentration in oat shoots

Ragab

1979

J. Agric. Sci.

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“…(18) reported that the percentage of phosphorus present in oat roots reaches an early maximum after which it declines, then increases again shortly before inflorescence. Also, Friis-Nielsen (4) …”

Section: Methodsmentioning

confidence: 99%

Amino-Acid Composition of Rhizosphere as Affected by Soil Temperature, Fertility and Growth Stage

Ivarson¹,

Sowden²,

Mack³

1970

Can. J. Soil. Sci.

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Evaluation and control of the nutritional status of cereals

Nielsen

1976

Plant Soil

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Methods of quantitative diagnosis of the nutritional status of the young plant and quantitative prognosis of final yield were based on preliminary models constructed by using selected results ('pure'-effect data) from pot experiments with oats and spring wheat. The bases of the models -a fixed dry matter weight level of aerial parts of the plant and absolute and relative reference values -and the procedure by using the models were tested by relationships between predicted and obtained final yields. Highly significant correlation coefficients > 0.9 (p < 0.001) were found.

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Interpretation of chemical plant analyses and control of nutrient status of growing plants exemplified by the tomato plant

Cited by 7 publications

References 14 publications

Effect of potassium fertilizer on cation uptake and concentration in oat shoots

Effect of potassium fertilizer on cation uptake and concentration in oat shoots

Amino-Acid Composition of Rhizosphere as Affected by Soil Temperature, Fertility and Growth Stage

Evaluation and control of the nutritional status of cereals

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