如何提高大棚葡萄的外观品质内容摘要:
2、况及时疏除过多或弱小的花序。 第 2 次在开花前,掐去花序上的副穗及花序前端1/51/4 的穗尖。 三、果穗处理在葡萄开花后,要用 1510九二 O 溶液浸泡花序 35 秒钟,这样可以适当增长葡萄的果柄,避免出现果粒特别紧凑的果穗,影响葡萄的后期上色。 果穗整理的时间应在生理落果后进行,剔除发育不良、受精不充分的果粒,使果穗整齐,果粒一致。 四、喷稀土微肥和钙肥在葡萄开花前、盛果期和果实膨大期,各喷 1 次 800 倍的稀土微肥液;在果穗成熟前 1 个月,每 10 天喷 1 次 100 倍的氨基酸钙液。 这样可以提高葡萄的含糖量,使葡萄提早成熟,还可以促使果皮增厚,减少葡萄裂果。 五、适时修剪在葡萄成熟的前 1520 天,要及时对葡萄进行修剪。 剪除棚内过密的枝叶和影响果穗光照的枝叶,提高果穗的透光率,促使葡萄上色。 在修剪的同时,要将见光不良的果穗轻轻反转,使果穗全面见光。 专利查询。如何提高大棚葡萄的外观品质
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