Copper contents and copper deficiency in Danish soil types

Steenbjerg, F.; Boken, Else

doi:10.1007/bf01852349

Cited by 17 publications

(3 citation statements)

References 3 publications

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“…This Cu deficiency can easily be corrected by applying 10-20 lb copper sulphate per acre. This is considerably less than the dressing of 28-56 lb recommended by Pizer et al (1966) to overcome the deficiency in East Anglia, and by other workers in north-west Europe including Lundblad, Svanberg & Ekman (1949), Steenberg & Boken (1950), Hoffman (1952), Copponet & Calvey (1955) and Henkens (1958).…”

Section: Responses To Copper In Pot Experimentsmentioning

confidence: 76%

“…Copper sulphate is the only source of Cu that has been used in these experiments in north-east Scotland, but other forms have been shown to be effective. For instance, Steenberg & Boken (1950) found copper pyrites or malachite to be equally as effective as copper sulphate, while Pizer et al (1966) obtained at least as good results with foliar applications of copper oxychloride or cuprous oxide, neither of which has the disadvantages of copper sulphate spray treatments in causing leaf scorch or corrosion of spraying equipment. The amount of Cu in basic slag would have to exceed 200 ppm before it could be expected to have a beneficial effect on Cu deficiency.…”

Section: Responses To Copper In Pot Experimentsmentioning

confidence: 99%

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Copper deficiency in crops in north-east Scotland

Reith

1968

J. Agric. Sci.

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SummeryField and pot experiments were carried out to determine how copper deficiency can be corrected on some soils in north-east Scotland. Spring-sown oats and barley are more susceptible to this deficiency than mixed herbage, while potatoes and swedes have not responded to Cu. The deficiency can be corrected by applying 10–20 lb CuSO4.5H2O per acre to the soil. Both field and pot experiments show that such treatments have large residual effects and under field conditions are effective for at least 8 years. A foliar spray supplying 1 lb CuSO4. 5H2O per acre is usually less effective than a soil dressing.Using soil undiluted with sand, the increase in grain yield produced by Cu treatment in pots was appreciably greater than in the field. The Cu content of mature oats and barley was practically unaffected by soil dressings but foliar spraying produced a considerable increase.Significant correlation coefficients have been obtained between soil Cu, extracted by 0·05 M EDTA, and the increase in grain yield produced by Cu applications in both field and pot experiments. In field experiments in north-east Scotland, cereal yields were not restricted by a deficiency if the EDTA-extractable Cu was above 1·1 ppm. With soil contents below 0–75 ppm Cu, the grain yields from spring-sown oats and barley were usually increased considerably; small responses were possible with contents between 0·75 and 1·1 ppm.

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Section: Responses To Copper In Pot Experimentsmentioning

confidence: 76%

Section: Responses To Copper In Pot Experimentsmentioning

confidence: 99%

Copper deficiency in crops in north-east Scotland

Reith

1968

J. Agric. Sci.

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“…This agrees with the work of Lundblad et at. (1949) and Steenbjerg & Boken (1951), who found that seasonal differences in the copper content of pastures were not great; but Adams & Elphick (1956) found that marked seasonal climatic differences were associated with different stages of plant growth, leading to significant differences in copper content. Sampling at a defined stage of growth should avoid data reflecting some of this variation, but the effects of growth rate on mineral composition of plants could still lead to atypical results in atypical seasons.…”

Section: Surveymentioning

confidence: 99%

Copper deficiency in lucerne in Canterbury

Carran

Gregg

Stephen

1974

New Zealand Journal of Experimental Agriculture

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In an investigation of the fertiliser requirements of dryland lucerne in Canterbury, results from two field trials showed significant yield responses to applied copper. The responses appear to be the first recorded in dryland lucerne in Canterbury. Levels of herbage copper on these responsive sites were low (1-2 ppm in dry matter). Topdressing with approximately 2 kg/ha of copper as CuCb or CUS04 raised herbage levels to 5-6 ppm on both copper-deficient stands. A survey of lucerne stands in Ashburton County indicated marginally adequate copper levels for satisfactory lucerne growth on the Eyre and Lismore soils.

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Düngungsversuche zur Kupfer- und Kobaltaufnahme der Futterpflanzen auf einer Podsol- und einer Braunerdeweide in Schleswig-Holstein

Seiffert¹,

Wehrmann²

1957

Z. Pflanzenernaehr. Dueng. Bodenk.

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Copper contents and copper deficiency in Danish soil types

Cited by 17 publications

References 3 publications

Copper deficiency in crops in north-east Scotland

Copper deficiency in crops in north-east Scotland

Copper deficiency in lucerne in Canterbury

Düngungsversuche zur Kupfer- und Kobaltaufnahme der Futterpflanzen auf einer Podsol- und einer Braunerdeweide in Schleswig-Holstein

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