【摘要】 研究塑料大棚内不同材料覆盖处理对茶园早春低温冻害的防御效果,并对冻害后恢复的生长情况、产量、产值和效益进行详细分析。结果表明:塑料大棚内不同覆盖材料处理可降低茶园最高温度,提升最低温度,显著降低最高最低温度差值;覆盖均对茶树新梢芽头的冻害防御有一定的效果,其中以无纺布覆盖防冻效果最好,田间最低温度达到-7℃时,茶芽平均受冻率较对照降低16.8%,并达到极显著水平;无纺布覆盖茶树冻害后恢复生长最快,产量、产值和经济效益最高。更多还原

【Abstract】 The defensive effect of low temperature frozen injury was studied by different mulching treatments on the tea plantation in the plastic green house in the early spring,then the growth status after freezing,the yield,the production value and economic benefit were analyzed detailedly.The results showed that,mulching in the plastic green house could decrease the maximum temperature and increase the minimum temperature,and they reduced the D-value of the maximum and minimum temperature obviously;mulching were effective on protecting the tea shoots out of the frostbite.Non-woven fabric mulching was the best among all the treatments,the freezing injury percentage of tea buds was significantly lowed 16.8% than that of control when the exterior temperature reached a minimum of-7℃.The tea trees with non-woven mulching grew fast after freezing,not only the yield was the highest,but also the production value and economic benefit.更多还原