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根据肥料施入根区土壤后养分的吸收、残留和损失等三个去向,提出了人参施肥去向回收模型.文中阐明了模型的理论根据、方法特点和参数的求法,以及在实践中的应用.根据吉林省人参施肥中存在的问题,强调施肥必须测土,以达准确计量水平.
According to three aspects of nutrient absorption, residue and loss after soil fertilizers were applied into the root soil, a model of ginseng fertilization and recovery was put forward.The theoretical basis, method features and parameters of the model were discussed and its application in practice. According to the existing problems of ginseng fertilization in Jilin Province, it is emphasized that soil fertilization must be measured in order to achieve accurate measurement.