Influence of fertilization on the quality of small fruits. Pt. 4. Influence of mineral fertilization on the content of organic substances in raspberry fruits
1985
Lenartowicz, W. (Research Institute of Pomology and Floriculture, Skierniewice (Poland))
The incomplete mineral fertilization produced greater effects where the diversified mineral fertilization was established in 1923. In the experiment when potassium was omitted the fruits contained less dry matter, soluble compounds and acids but they contained more nitrogenous compounds. The beneficial effects of phosphorus-potassium fertilization on the content of dry matter and total and reducing sugars were recorded. (Author)
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