信阳毛尖茶主产区坡地茶园土壤养分研究

对信阳毛尖茶主产区的信阳市浉河区浉河港、董家河和谭家河3个乡坡地茶园土壤养分进行了分析研究。结果表明:土壤pH4.04~5.32,适宜茶树生长;土壤有机质含量8.99~23.33 g/kg,100%处于中低等水平;土壤速效氮含量108.5~350 mg/kg,100%处于中高水平;土壤速效磷含量0.6~32.225 mg/kg,100%处于中低水平;土壤速效钾含量51~177 mg/kg,93.75%处于中等水平以上。根据分析结果,3个乡的坡地茶园,今后施肥应重视有机肥的施用,增加土壤有机质含量,适当控制氮肥,增施磷肥,少施或不施钾肥。

Study on soil nutrient of tea garden in main producing areas of Xinyangmaojian tea

Shihegang, Dongjiahe and Tanjiahe are the main producing areas of Xinyangmaojian tea in Xingyang of shihe region. Soil nutrient status of these three rural slope was carried on. The results indicated that pH4.04 ～ 5.32 is suitable for the growth of tea ; organic matter 8.99 ～ 23.33 g/kg, 100% middle or low yield ; available nitrogen 108.5 ～ 350 nag/ kg, 100% middle or high yield; phosphorus 0.6 ～ 32. 225 mg/kg, 100% middle or low yield ; K 51 ～ 177 mg/kg, 93. 75% middle and above. The results indicated that the three tea producing areas should pay attention to the future of organic fertilizer application to increase soil organic matter content, control nitrogen proper, increase of P, and applying less K fertilizer.