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In this article is shown, that the results of research are about one of the main problems of agricultural production of the country, the present and future production of early potatoe crop in irrigation place of Hissor district and the way of raising phosphorus fertilizer, that coefficient of use utilizing phosphorus. It is recommended the best recommendation to specialists the scientific analysis.

The effect of co-application of manure on the effectiveness of phosphorus fertilizers for potato culture on old-dusted of dark serozems soil