长汀烟区植烟土壤肥力适宜性综合评价及空间分布研究

张瑛, 王海洋, 姜林, 郭学清, 钟小丽, 张星, 卢敏娇, 姬小明, 杨晓朋, 吴树松

Comprehensive Evaluation and Spatial Distribution of Soil Fertility Suitability in Changting Tobacco-Growing Area

Zhang Ying, Wang Haiyang, Jiang Lin, Guo Xueqing, Zhong Xiaoli, Zhang Xing, Lu Minjiao, Ji Xiaoming, Yang Xiaopeng, Wu Shusong

表3 长汀县植烟土壤养分含量丰缺体系

Table 3 Nutrient content abundance and deficiency system of tobacco planting soil in Changting

等级 Classification pH 有机质 Organic matter (g/kg) 碱解氮 Alkali-hydrolyzable N (mg/kg) 水溶性氯 Water soluble Cl (mg/kg) 速效磷 Available P (mg/kg) 速效钾 Available K (mg/kg) 交换性钙 Exchangeable Ca (mg/kg) 交换性镁 Exchangeable Mg (mg/kg) 极低Extremely low <4.50 <15 <65 <5 <35 <80 <200 <25 低Low 4.51~5.50 15~25 65~100 5~15 35~45 80~150 200~400 25~50 适宜Suitable 5.51~6.50 25~35 100~180 15~25 45~55 150~220 400~600 50~100 高High 6.51~7.50 35~45 180~240 25~40 55~70 220~350 600~1000 100~200 很高Very high >7.51 >45 >240 >40 >70 >350 >1000 >200