Original scientific paper
https://doi.org/10.5513/JCEA01/21.2.2631
Moisture regime in Hortisol and lettuce yield under different mulching conditions
Danijela JUNGIĆ
orcid.org/0000-0002-1121-4827
; University of Zagreb, Faculty of Agriculture, Department of Soil Science, Svetošimunska 25, 10000 Zagreb, Croatia
Petra TURK
; Student of Ms Agroecology, University of Zagreb,Faculty of Agriculture, Svetošimunska 25, 10000 Zagreb, Croatia
Božidar BENKO
orcid.org/0000-0001-9358-8787
; University of Zagreb, Faculty of Agriculture, Department of Vegetable Crops, Svetošimunska 25, 10000 Zagreb, Croatia
Abstract
The aim of the study was to determine the impact of dead organic mulches (unprocessed sheep wool - SW and ecological wool - EW), black polyethylene film (PE) and unmulched soil (WM) on the moisture regime of Hortisol and the yield of lettuce cv.´Melina´.The research was carried out at an trial field at the Faculty of Agriculture in Zagreb from April to June 2017. The experiment was set out according to a randomized block design with three replications. Soil samples were taken decadally from depths of 0-10 cm and 10-20 cm, in 3 replications, and the soil moisture content was determined by gravimetric method. The current moisture content in the soil was significantly influenced by: days after transplatation lettuce to open field (DAT) and mulch (M). The significantly low values of soil moisture were determined at 46 DAT, and high at 5 DAT. Considering the mulch, the soil moisture in both layers as follows: PE> SW> EW> WM. Diameter of the lettuce rosette was not significantly affected by the mulch type. Lettuce rosette, grown on SW (20.7 cm) was significantly higher compared to PE (18.4 cm), EW (18.0 cm) and WM (17.8 cm). The highest marketable yield of lettuce was achieved when wool mulch was applied (6.58 kg/m2 on EW, ie 6.56 kg/m2 on SW), and the lowest under PE (4.60 kg/m2). Woolen mulches have proved to be a good alternative to the previous application of PE mulches.
Keywords
Lactuca sativa L.; polyethylene film; sheep wool; soil moisture; yield
Hrčak ID:
239375
URI
Publication date:
18.6.2020.
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