Potassium polyposphate in the vegetation experiments. Pt. 4. Effect of potassium polyphosphate used every year and for the future on the yield and chemical composition of plants in a field experiment
1994
Zawartka, L. (Akademia Rolniczo-Techniczna, Olsztyn (Poland). Katedra Chemii Rolnej)
The effect of polyphosphate on total plant yield was similar as of triple superphosphate applied with potassium chloride. Yearly doses resulted in significantly higher yields irrespective of the fertilizer used when compared with the fertilization for future. Phosphorus content in plants and utilization of this element depended on the method of fertilization, but potassium content was higher in the plants fertilization with potassium polyphosphate
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