Wplyw niedoboru i nadmiaru opadow oraz nawadniania na plonowanie roslin zbozowych w doswiadczeniach krajowych z lat 1952-76.
1986
Panek K.
The highest yields of winter cereals were obtained when the sum of precipitation in September and October was over 150 mm on light soils and medium soils (excepting winter barley). Depending on the amount of precipitation and soil compactness the optimum irrigation doses were from 50 to over 150 mm for winter wheat, up to 150 mm for spring wheat and up to 100 mm for spring barley. The yield increase of winter wheat reached 0.5-1.4 t/ha, spring wheat 0.8-0.9 t/ha and spring barley 0.2-1.0 t/ha. The amount of the most favourable irrigation dose and the effect of irrigation were negatively correlated with the amount of spring-summer precipitation.
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