engleski

Effects of foliar fertilization and water stress on yield and physiological characteristics of potato

The purpose of this study was to determine the effects of four foliar fertilization treatments (Control, Epso Salt, Megagreen, Drin) and water stress on potato tuber yield, the number of tubers by size and the number of tubers with brown spots. Foliar fertilization was carried out five times during vegetation in the period from the start of tuber formation to the stage of full tuberization. The water deficit stress was induced at the stage of full tuberization. Potato tuber yield was greatly reduced under water stress conditions, and so was the number of large tuber size grade 50-75 mm. Foliar fertilization resulted in higher resistance to water deficit. Significantly the highest potato tuber yield and the 50-75 mm tuber size grade was achieved by Epso Salt treatment, the lowest yield by Drin treatment

potato; foliar fertilization; water stress; tuber yield

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