Einfluß der mineralischen Düngung auf den Carotin‐ und Vitamin‐C‐Gehalt von Grünkohl

Sengewald, E.

doi:10.1002/food.19590030507

Cited by 3 publications

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Ertragsabhängigkeit des Spinats und einiger seiner wertbestimmenden Bestandteile von der Düngung

Hulewicz¹,

Mokrzecka²

1971

J Plant Nutrition & Soil

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The Dependence of the Yield of Spinach and of Some of its Constituents on Fertilisation 1. The increase in the spinach crop, caused by nitrogen was conditioned by the simultaneous application of potassium. 2. The increased growth of the spinach crop induced by increasing magnesium application did not decrease in spite of rising potassium applications. 3. The spinach crop height depended on the reciprocal of the Ca/Mg relation. Any displacement of the relation towards calcium caused an increase in the crop only with low levels of magnesium. Displacement towards magnesium gave the largest crop. 4. Doubling of the calcium application showed no Ca++ and K+ antagonism which affected the crop. 5. The increase of the ascorbic acid and carotene content caused by manganese and boron attained the highest value with a double application of these elements. 6. Increasing nitrogen application caused a rise in nitrate content. A threefold application of boron reduced this by 50%.

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Ertragsabhängigkeit des Spinats und einiger seiner wertbestimmenden Bestandteile von der Düngung

Hulewicz¹,

Mokrzecka²

1971

J Plant Nutrition & Soil

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Organic agriculture: does it enhance or reduce the nutritional value of plant foods?

Brandt¹,

Mølgaard²

2001

J Sci Food Agric

344

224

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The possible differences between organic and conventional plant products are examined from the view of possible effects on human health. It is concluded that nutritionally important differences relating to contents of minerals, vitamins, proteins and carbohydrates are not likely, primarily since none of these are de®cient in typical First World diets, nor are present levels of pesticide residues in conventional products a cause for concern. However, there is reason to believe that contents of many defence-related secondary metabolites in the diet are lower than optimal for human health, even for those where too high levels are known to be harmful. High biological activity resulting in adverse effects on growth of animals and children may be directly linked with promotion of longevity. There is ample, but circumstantial, evidence that, on average, organic vegetables and fruits most likely contain more of these compounds than conventional ones, allowing for the possibility that organic plant foods may in fact bene®t human health more than corresponding conventional ones. The authors de®ne testable scienti®c hypotheses which should be further investigated to provide more de®nitive answers to the question.

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Die Bedeutung der Düngung für die menschliche Ernährung

Kraut¹,

Wirths²

1965

Düngung Der Kulturpflanzen

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Einfluß der mineralischen Düngung auf den Carotin‐ und Vitamin‐C‐Gehalt von Grünkohl

Cited by 3 publications

References 0 publications

Ertragsabhängigkeit des Spinats und einiger seiner wertbestimmenden Bestandteile von der Düngung

Ertragsabhängigkeit des Spinats und einiger seiner wertbestimmenden Bestandteile von der Düngung

Organic agriculture: does it enhance or reduce the nutritional value of plant foods?

Die Bedeutung der Düngung für die menschliche Ernährung

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