宝坻区土壤养分状况及平衡施肥对作物产量和品质的影响  

Soil Nutrient Status and Balanced Fertilizing on Plant Yields and Quality in Baodi

作　　者：刘佐[1] 邱荣学[1] 杨占山[1] 周艺敏[2] 

机构地区：[1]天津市宝坻区农业技术推广服务中心,天津301800 [2]天津市土壤肥料研究所,天津300192

出　　处：《天津农业科学》2004年第3期18-22,共5页Tianjin Agricultural Sciences

摘　　要：选宝坻区有代表性的潮土、湿潮土共33个样点,采用土壤养分系统研究方法对耕层土壤养分状况进行了调查。结果显示,土壤钾、硫的亏缺成为养分平衡的主要限制因子;部分地区存在锌、铁和锰的亏缺问题。多项试验结果显示,在土壤养分系统分析基础上进行平衡施肥,可实现作物增产13.9%～30.2%,增收1700～5000元/hm2,并在多方面改善了农产品品质。representative samples of Chao soil and Hydric soil in Baodi district were selected to investigate the soil nutrient status in plowed layer soil by means of systematic researching approach of soil nutrient status. The result showed that the deficiency of soil potassium and sulphur became the primary restricted factor to the nutrient- and some problems existed such as the partly deficiency of Zn- Fe and Mn. The results of many trials indicated that carrying out balanced fertilizing on the basis of systematic analysis of soil nutrient is essential to increasing yield 13.9% to 30.2% and improving income 1 700 to 5 000 yuan/hm2- and promote the crops quality.

关 键 词：土壤养分 平衡施肥 作物 产量 品质 钾 硫 

分 类 号：S158.3[农业科学—土壤学] S147.2[农业科学—农业基础科学]