无公害蔬菜营养与施肥研究进展

本文综述了无公害蔬菜定义、卫生评价标准及生产环境评价标准。对无公害蔬菜生产中常用的氮肥在土壤中转化、种类和形态、用量和时期与硝酸盐关系，过量氮肥对蔬菜体内硝酸盐累积影响，对地下水质污染和人体健康的影响，磷肥过量引起流失造成水体富营养化和磷肥中镉对土壤生态环境污染的影响，以及畜禽粪肥、城市垃圾和污泥堆肥对蔬菜品质及环境影响进行了评述。对近二十年来土壤栽培条件下应用于无公害蔬菜营养诊断与平衡施肥研究的

Progress in Studies on Nutrition and Fertilization of Non-Pollution Vegetables

Definition of non_pollution vegetables and valuation standard of hygiene and environment production were discussed in this paper. It was also discussed that includes the change of nitrogen fertilizer in soil, types and forms of nitrogen fertilizer, quantities and period of nitrogen application related to nitrate, over_nitrogens effected on the health of humanbeing and the quality of the ground _water; over_phosphorus caused running off which leaded to the rich nutritionlization of water body, Cd in P fertilizer effected on soil ecological environment ;and manure,city refuse and sludge effected on the quality of vegetable and environment of the production. The methods of the crops nutrient balance, fertilizer effect function,NPK proportion, soil testing index, appearance and testing index diagnosis of plant nutrient, DRIS,and plant nitrate test strip applied to the reaserches on non_pollution vegetables production under the condition of soil cultivation in the recent 20 years were brifly reviewed.