Zhao et al. (2010) indicated that cucumber yield with vermicompost
and vermicompost organic-inorganic mixed fertilizer is close to those with chicken manure and inorganic mixed fertilizer, but the
overall quality of cucumber is improved by applying vermicompost
and vermicompost organic-inorganic mixed fertilizer in the
greenhouse.
Irrigation amount significantly affects the crop growth, yield
and irrigation water productivity. Water consumption for tomato
plant is estimated at 0.5–0.9m3/m2 per year (Papadopoulos, 1991).
Another study conducted by Soria and Cuartero (1998) revealed
that water consumption of a tomato plant ranges from 0.19 to
1.03 L/d at different water salinities. Increasing the irrigation rate
up to 120% of pan evaporation increases crop yield, but decreases
total soluble solids (Tu˝ zel et al., 1994).Dripirrigationat 75%of reference
evapotranspiration has themaximumcrop yield and irrigation
water productivity (Harmanto et al., 2005).
There are lots of studies about the interactive effect of water
and chemical fertilizer on the productivity of vegetable plants and
soil fertility, but fewer studies about the interactive effect of water
and organic manure. The hypothesis of this study was that the
effects of vermicompost on tomato yield and quality and soil fertility
in the greenhouse are controlled by soil water regime, so a pot
experiment was conducted to investigate this hypothesis with five
fertilizer treatments including vermicompost and three irrigation
levels.