六堡茶园土壤水解性氮含量分析

Analysis on Hydrolytic-nitrogen Content of Liubao Tea Garden Soil

该文通过碱解扩散法对梧州19个规模化的六堡茶园进行水解性氮含量的测定,并依据全国第二次土壤普查养分分级标准对其进行含量分析。结果表明六堡茶园土壤的水解性氮含量整体处于3级到4级,属中低等水平;六堡镇黑石村、梨埠金斧塘、黄村林秀村、新圩镇的水解性氮含量处于2级水平,氮含量有利于茶树生长;倒水镇旭村的水解氮含量处于5级水平,氮含量不适宜茶树的生长。同时实验分析得出不同地区剖面水解性氮含量基本随土壤深度的加深而减少。

The contents of hydrolytic nitrogen in 19 large-scale Liubao Tea gardens of Wuzhou were determined in the Alkaline hydrolysis diffusion method,and the contents were analyzed according to the second national soil screening nutrition classification standard. The result shows that the hydrolytic nitrogen content of Liubao Tea garden soil is at level 3 to 4 in general,belonging to the lower level. The hydrolytic nitrogen content of the tea gardens in Heishi Village,Jingfutang Village,Linxiu Village of Liubao town and the hydrolytic nitrogen content of the garden in Xinxiu Town is at level 2,which is helpful for the growth of tea trees. The hydrolytic nitrogen content of the garden in Xu Village of Daoshui Town is at level 5,which is not suitable for the growth of tea trees. Meanwhile,the content of the hydrolytic nitrogen in different regions decreases with the soil depth.