ISHS Acta Horticulturae 825: I Balkan Symposium on Fruit Growing
FERTIGATION OF PRIMOCANE-FRUITING RASPBERRY – LEAF AND SOIL NUTRIENT CONTENT BETWEEN APPLICATIONS |
| Authors: | K.S. Koumanov, I. Tsareva, K. Kolev, G. Kornov |
| Keywords: | drip irrigation, fertilizers, macronutrients, soil solution and leaf analyses |
| Abstract:
Amongst the agrochemicals, fertilizers have been the most frequently applied through microirrigation systems (fertigation). Although the method has been developed to a high technical level, there is yet a lack of information concerning the optimum timing and the doses under multiple fertilizer applications. The subject of the present article is the fertilizers’ fate in the root zone and the raspberry plants’ nutritional status between the fertigation events, under three levels of drip water supply – 100%, 75%, and 50% of the estimated crop evapotranspiration. The study was based on laboratory analyses of soil, soil solution and plant samples. It was found that fertigation maintained constant and sufficient concentrations of N, P, and K in the soil providing optimum mineral nutrition for the raspberry plants. Proper irrigation and fertigation management could successfully retain the fertilizers in the root zone, thus preventing losses and eventual pollution of soil and groundwater. | |
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