Irrigation: nf Referring to viticulture manuals, irrigation would be reserved for areas where rainfall is less than 400 mm / year according to INRA Montpellier. In the event of a strong water deficit, this constraint, if it is too intense, is detrimental to the vine, furthermore causing a shift in maturity, loss of color and a drop in acidity. After long procrastination, the national committee of the INAO has confirmed that a reasonable intake of water is compatible with the no ...
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