保温棚对葡萄免埋土越冬防寒的作用

Effects of Heat Preservation Shed on Cold Protection of Grape Without Burying Soil

以酿酒葡萄"赤霞珠"为试验材料,研究搭建保温棚能否使酿酒葡萄枝蔓和根系在免埋土情况下安全越冬。结果表明:试验棚内气候环境较稳定,具有很好的保温保湿能力,在最冷时段内棚内相较于棚外气温能有效提高4℃左右,且在整个试验期不易造成枝条抽干;相较于棚外,棚内各层土壤最低温均能提升2~4℃,说明试验棚对于各层土壤均具有较好的保温作用,且对0~20 cm土壤影响更大;棚内各层土壤湿度均保持在10%以上,而棚外各层土壤湿度相较于棚内均减少4%~6%,说明试验期内根系不易受到干旱胁迫。

Taking‘Cabernet Sauvignon’grape as the experimental material,to study whether the vines and roots of wine grapes could survived the winter safely without burying soil by built a heat preservation shed.The results showed that the climate environment in the test shed was relatively stabled,and it had good heat preservation and moisture retention ability.Compared with the temperature outside the shed,the temperature inside the shed could effectively increased about 4℃ in the coldest period,and it was not easy to cause branch drying during the whole test period.Compared with the outside of the shed,the lowest soil temperature in each layer of the shed could be increased about 2-4℃,which indecated that the test shed had a good thermal insulation effect on all layers of soil,and had a greater impact on 0-20 cm soil.The soil moisture of each layer in the greenhouse remained above 10%,while the soil moisture of each layer outside the greenhouse decreased by 4%-6% compared with that in the greenhouse,which indicated that the root system was not susceptible to drought stress during the experimental period.