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通过野外采样和室内分析,研究了采自贵州、四川、重庆三省(市)野生青蒿生长土壤的pH和养分含量.结果表明:三地总的说来pH适宜,速效钾、有效锌、有效铁含量充足,速效磷较充足,有机质、速效氮比较缺乏,有效铜严重缺乏.贵州速效钾、有效锌和有效铁充足,62.5%缺乏有机质、75%缺乏速效氮、有效铜和速效磷;四川速效钾、有效铁充足,速效磷基本不缺乏,且含量极高,54.54%缺乏有机质,45.45%缺乏速效氮,72.73%缺乏有效铜,54.55%缺乏有效锌;重庆速效钾、有效铁充足,速效磷含量较高,仅21.43%缺乏,71.42%缺乏有机质,57.14%缺乏速效氮,78.57%缺乏有效铜,21.43%缺乏有效锌.有机质含量对于土壤其它营养元素的含量和有效性均具有比较大的影响.而对于某些元素,其影响程度视不同土壤类型而变化.
Through field sampling and indoor analysis, the pH and nutrient contents of the soil grown from wild Artemisia annua collected from Guizhou, Sichuan and Chongqing provinces were studied. The results showed that the pH value, available potassium and available zinc were effective Sufficient available iron, adequate available phosphorus, insufficient organic matter and available nitrogen, and a serious shortage of available copper.Guizhou available potassium, available zinc and available iron are abundant, 62.5% lack organic matter, 75% lack available nitrogen, available copper and available phosphorus; 54.54% lack of organic matter, 45.45% lack of available nitrogen, 72.73% lack of available copper, 54.55% lack of available zinc; Chongqing, available potassium, adequate available iron, quick-acting Phosphorus content is high, only 21.43% is lacking, 71.42% is lack of organic matter, 57.14% is lack of available nitrogen, 78.57% is lack of available copper and 21.43% is lack of available zinc.Organic matter content has relatively large content and availability for other nutrient elements in soil However, for some elements, the degree of influence depends on the type of soil.