塑料大棚葡萄生长与气象条件分析

Analysis of Grape Growth and Meteorological Conditions Inside and Outside the Plastic Greenhouse

以塑料大棚葡萄为研究对象,观测了2016年大棚内葡萄生长期以及大棚内外小气候数据,研究分析了塑料大棚内葡萄生长特性和气象要素特点。结果表明:棚内外气温温差约15℃,棚内气温于14:00左右达到最高值,较棚外最高气温出现时间早1~2h;棚内20cm地温普遍较棚外高5~7℃,棚内地温达到葡萄根系活动的时间较棚外早13d;棚外葡萄从发芽至成熟用时110d,棚内葡萄用时101d,较棚外提前9d成熟;萌芽至开花棚内较棚外用时明显减少,棚内较棚外提前了13d,着色至成熟棚内较棚外用时长,棚内较棚外推迟了2d;根据品质检测结果得知棚内外的葡萄品质差异较大,棚内葡萄的糖、酸、可溶性固形物含量均高于棚外,棚外的维生素C含量具有明显的优势,棚内葡萄较棚外着色要好。

The grape of plastic greenhouse in Langfang city was taken as the research object.The grape growth parameters and the meteorological data inside and outside the plastic greenhouse were observed in 2016.The characteristics of grape growth and meteorological factors were analyze.The results showed that the relative temperature was around 15 ℃ between inside and outside,the inside temperature was peak around 14：00,was the highest temperature appeared earlier 1-2 hours of outside.Inside the plastic greenhouse 20 cm soil temperature generally was higher than the outside 5-7℃,the temperatureof inside reached the grape root activity time was earlier than the outside for13 days.The grapes that were outside the plastic greenhouse from germination to maturity used110 days,and grapes of inside used 101 days.A difference of 9 days between inside and outside the plastic greenhouse.Compared with the outside,the inside germination period to maturity was shorter13 days,coloring to maturity was longer 2 days.According to the test results,between inside and outside grape quality difference was greater.The contents of sugar,acid,soluble solids were more higher inside the plastic greenhouse,but the vitamin C content was higher than that was outside the plastic greenhouse.The grape inside the plastic greenhouse was colored better.