论文部分内容阅读
我县位于湖南中南部,冬季常年最低温度是-1至-4℃,这种低温一般说来,对枳砧温州蜜柑无生存威胁,而影响柑桔产量的关键是低温持续的时间,长时间的低温干旱对柑桔树体各器官损伤很大,造成减产。为了探索冬季运用不同覆盖物对红壤山地桔园保温保湿的效果,1984年12月至1985年3月进行了此项试验,现将结果简报于后。 一、材料和方法 (一)供试材料 试验地点设马鞍岭乡枫树村桔园,土壤为四纪红壤山地,坡度为20度,东坡向,梯
My county is located in central and southern Hunan, the winter perennial minimum temperature is -1 to -4 ℃, this low temperature in general, the existence of Hovenia dulcis Thunberg mandarin orange no threat to survival, and the key to the impact of citrus production is the duration of low-temperature, long time Low temperature and drought on the citrus tree organs of a large damage, resulting in reduced production. In order to explore the effect of applying different coverings on the thermal insulation and moisturizing of orange orchard in the red soil in winter, this experiment was conducted from December 1984 to March 1985, and the result is reported briefly. I. Materials and Methods (I) Materials for Test The test site is located in Maple Village, Ma’anshan Township. The soil is red earth and mountainous area of the Fourth Century with a slope of 20 degrees. The east slope and the ladder