Pengaruh Interval Pemberian Air melalui Irigasi Tetes (Drip Irrigation) dan Pupuk Mineral Plus terhadap Produksi Anggur pada Lahan Kering di Kecamatan Gerokgak Kabupaten Buleleng

Abstract

A field experiment of drip irrigation was set up in the field on dry land farming at Patas Gerokgak, Buleleng.
The aim of the experiment was to demonstrate to the local farmer about the beneficial goal of drip technology in
order to gain a high efficiency of water application. Three intervals of water application, i.e. : 2 days, 4 days
and 6 days (I1, I2, I3) in drip technique, and application of Mineral Plus fertilizers (M1) and without Mineral Plus
fertilizers (M0) was observed in a nested block design. Bali grape varieties were used as an indicator. Parameters
which were observed in second year experiment included the water distribution as indicated by soil water content
at 0 – 15 cm depth, and soil water matrix potential (0 – 30 cm depth) which indicated by Loctonic tensiometer.
Plant growth was observed by measuring fresh and dry weight biomass and diameter of grape stalk, regularly. The
result of the experiment showed that, soil water content of 0 – 15 cm depth was not significantly affected by the
treatment. Plant growth as indicated by fresh weight of biomass, dry weight of biomass and diameter of grape stalk
were not significantly affected by the treatment There were no significant differences between treatments on fresh
and dry weight biomass, dry biomass and diameter of grape stalk so that the yield of grape as indicated by number
bunch of grape per plant, fresh weight of grape per bunch, fresh weight of grape per plant, dry weight of grape
per bunch, number of grape per bunch were not significantly affected by the treatment. Yield quality as indicated
by volume of grape per pellet, sugar content of grape and colour of grape were no significant differences between
treatments.