该成果在土壤养分状况评价和推荐施肥中首次综合考虑各种大、中、微量营养元素的全面均衡供应。首次把土壤对七种营养元素的吸附固定能力作为评价土壤养分有效性和确定施肥量的重要参数。应用力进的联合浸提剂和系列化操作技术，使测土推荐施肥工作效率达到先进水平。在土壤养 The results for the first time in soil nutrient status assessment and recommended fertilization comprehensive consideration of a variety of large, medium and micro nutrients in a comprehensive and balanced supply. For the first time, the ability of soil to adsorb and fix seven nutrient elements was taken as an important parameter to evaluate the effectiveness of soil nutrients and to determine the amount of fertilizer application. Application of force into the joint leaching agent and a series of operating techniques to soil testing and fertilization efficiency reached the advanced level. Raise in the soil