Apple irrigation regime in the conditions of Bulgaria.

Hydrotechnique and Melioration Institute. Apple irrigation regime in the conditions of Bulgaria.

Hydrotechnique and Melioration Institute, Sofia, Bulgaria, 1998.

The irrigation regime of the apple irrigated by sprinkler was calculated by the balance method of the soil moisture for midle dry year, with a 75% probability of hystorical precipitation series from different areas of study, the evapotranspiration by stage of the crop was determined from the conduced investigation.

It was found that for the various agricultural regions of Bulgaria, the number of irrigation that need the apple range of 4-6 during the months of June through the first ten days of September to use a total water demand of 2750-3600 m3/ha. The apple crop irrigation techniques with greater response corresponded to the sprinkler and drip.

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