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我县近十余年来,发展公酿、北醇葡萄1.4万亩.在生产中多数采用行株距2×1米,蔓距40～50厘米,双臂立架,扇形整枝,短梢修剪等措施,促使幼树成形快,结果早,产量高.但随着树龄的增长,产量的增高,使树冠下部通风透光条件渐次恶化,导致基部果枝早期枯衰,结果部位上移,一般5～6年生上移55～60厘米,结果体积缩小,穗少粒小,亩产由1500～1750公斤,下降到1000～1300公斤左右.
Nearly ten years of my county, the development of alopecia, Bei Li grape 14000 mus. In the production of the majority of the line spacing of 2 × 1 m, 40-40 cm from the spread of arms stand, fan pruning, short shoot pruning The result is that the young tree can be formed fast, the result is early and the yield is high, but with the increase of the tree age, the yield increases, the condition of ventilation and light of the lower part of the tree crown deteriorates gradually, 6-year-old up 55 to 60 cm, the result of reduced size, less spikelets, per mu from 1500 ~ 1750 kg, down to about 1000 ~ 1300 kg.