The effect of drip irrigation on the yield and quality of apples

Abstract

The paper describes the assessment of the influence of drip irrigation on the quality and yield of apples of the species Golden Delicious/M9 and Gala/M9 in the locality Velké Němčice performed by the Institute of Horticultural Machinery ZF MENDELU in Brno.The experiment is based in the orchard of the company Sady Velké Němčice, s. r. o. The assessed varieties are Golden Delicious and Gala planted in 2003 with the spacing 3.5 × 1.1 m. The experiment is performed in four rows. In every row four 50 meters long experimental sections are marked. Each section is irrigated in a different way.The irrigated sections are fitted with driplines (supplied by NETAFIM CZECH, s. r. o.) with different drip-flow rates: 1.6 l/hour (sections labelled "REDUCED"), 2.3 l/hour ("STANDARD"), and 3.5 l/hour ("INCREASED"). Pipes without drippers are installed in the control sections without irrigation ("CONTROL"). The sequence of the sections in the adjacent rows varies to increase the objectivity of the measurement.During the four-year monitoring a positive influence on the quality and yield of apples has been detected.

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